[User] What are the top 5 tokens by 7-day price change percentage? Show token_symbol, token_name, narrative, and chain, ordered by price_change_percentage_7d descending.

[Assistant]
```sql
SELECT
  token_symbol,
  token_name,
  narrative,
  chain
FROM token_basic_info
ORDER BY price_change_percentage_7d DESC
LIMIT 5;
```

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE project_fundraising_record ( id character varying(32) NOT NULL, project_id character varying(32) NOT NULL, project_name character varying(128) NOT NULL, rounds_name character varying(32), investment_value numeric(38,14), investment_date character varying(128), introduction character varying(128), valuation numeric(38,14) )
CREATE TABLE token_basic_info ( coin_id text, token_name text, token_symbol text, token_address text, chain text, price numeric, price_change_percentage_1h numeric, price_change_percentage_24h numeric, price_change_percentage_7d numeric, highest_price_24h numeric, lowest_price_24h numeric, market_cap numeric, market_cap_rank numeric, market_cap_change_percentage_24h text, total_volume text, narrative text, trend_rank numeric )
 "CREATE TABLE narrative_info (",
    "narrative character varying(512) NOT NULL, -- the id of narrative",
    "top_3_coins text, -- the top 3 tokens in the narrative",
    "price_change_percentage_1h double precision, -- change in value divided by the absolute price value of the original token price in 1 hour in the narrative",
    "price_change_percentage_24h double precision, -- change in value divided by the absolute price value of the original token price in 24 hours in the narrative",
    "price_change_percentage_7d double precision, -- change in value divided by the absolute price value of the original token price in 7 days in the narrative",
    "market_cap double precision, -- the market cap of the narrative",
    "volume_24h double precision, -- the trade volume of the narrative",
    "trend_rank bigint, -- the trending rank of the narrative, value 1 expresses the most popular narrative",
    "token_num bigint, -- total token number in the narrative",
    ",PRIMARY KEY (narrative));"

  "CREATE TABLE cex_token_balance (",
    "snapshot_time character varying(32) NOT NULL,  -- the snapshot time of record, converted from original timestamp",
    "chain character varying(128) NOT NULL, -- the chain that the token resides",
    "address character varying(128) NOT NULL, -- the address that holds the assets, owned by a CEX",
    "exchange character varying(512) NOT NULL, -- a centralized exchange name",
    "token_address character varying(128) NOT NULL, -- token contract address",
    "token_symbol character varying(512), --token symbol",
    "balance numeric(38,10), -- token balance",
    "usd_value numeric(38,14), -- value of the token held in USD",
    "price double precision, --price of the token in USD",
    ",PRIMARY KEY (snapshot_time, exchange, address, chain, token_address));"

CREATE TABLE smart_money_profit ( address character varying(100) NOT NULL, -- the user's address rank INT, -- the rank of the address in trade performance, value 1 expresses the best address. profit numeric(38,6), -- the profit user made in a month roi numeric(38,2), -- the roi of the user in a month realized_ratio numeric(38,2), -- the percentage of the user's realized profit most_profit_token character varying(100), -- the token symbol of the user's most profitable trade last_trade_time character varying(100), -- the last trade time of the user chain character varying(100), -- the chain that the address resides PRIMARY KEY (address, chain) )
CREATE TABLE smart_money_token_performance ( token_address text, token_symbol text, pnl numeric, net_flow numeric, avg_cost numeric, price numeric, realized_ratio numeric, roi numeric, chain text )
CREATE TABLE smart_money_token_inflow ( token_address text, token_symbol text, token_amount numeric, usd_value numeric, avg_price numeric, type numeric, address_amount numeric, narrative text, chain text )


[User] List the latest version of each document (identified by case_id and document_name), showing the version number and its upload_timestamp.

[Assistant]
SELECT d.case_id,
       d.document_name,
       d.version   AS latest_version,
       d.upload_timestamp
FROM legal_services.documents d
JOIN (
  SELECT case_id, document_name, MAX(version) AS max_version
  FROM legal_services.documents
  GROUP BY case_id, document_name
) m ON d.case_id = m.case_id
    AND d.document_name = m.document_name
    AND d.version = m.max_version;

[User] Actually, I also want to see the upload_timestamp of the previous version for each document.

[Assistant]
SELECT m.case_id,
       m.document_name,
       m.max_version         AS latest_version,
       d_latest.upload_timestamp  AS latest_timestamp,
       d_prev.upload_timestamp    AS previous_timestamp
FROM (
  SELECT case_id, document_name, MAX(version) AS max_version
  FROM legal_services.documents
  GROUP BY case_id, document_name
) m
JOIN legal_services.documents d_latest
  ON d_latest.case_id = m.case_id
 AND d_latest.document_name = m.document_name
 AND d_latest.version = m.max_version
LEFT JOIN legal_services.documents d_prev
  ON d_prev.case_id = m.case_id
 AND d_prev.document_name = m.document_name
 AND d_prev.version = m.max_version - 1;

[User] Also, only include documents whose first version (version = 1) was uploaded in 2024.

[Assistant]
SELECT m.case_id,
       m.document_name,
       m.max_version          AS latest_version,
       d_latest.upload_timestamp   AS latest_timestamp,
       d_prev.upload_timestamp     AS previous_timestamp
FROM (
  SELECT case_id, document_name, MAX(version) AS max_version
  FROM legal_services.documents
  GROUP BY case_id, document_name
) m
JOIN legal_services.documents d_first
  ON d_first.case_id = m.case_id
 AND d_first.document_name = m.document_name
 AND d_first.version = 1
 AND d_first.upload_timestamp >= '2024-01-01'
 AND d_first.upload_timestamp < '2025-01-01'
JOIN legal_services.documents d_latest
  ON d_latest.case_id = m.case_id
 AND d_latest.document_name = m.document_name
 AND d_latest.version = m.max_version
LEFT JOIN legal_services.documents d_prev
  ON d_prev.case_id = m.case_id
 AND d_prev.document_name = m.document_name
 AND d_prev.version = m.max_version - 1;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE legal_services.documents ( document_id.text, case_id.text, document_name.text, document_type.text, storage_path.text, uploaded_by_lawyer_id.text, upload_timestamp.timestamp, version.integer, description.text )


[User] List all appointments scheduled in the next 7 days along with the appointment_id, appointment_time, patient's full name, doctor's full name, and the patient's primary insurance plan_name.

[Assistant]
SELECT ap.appointment_id,
       ap.appointment_time,
       pt.first_name || ' ' || pt.last_name AS patient_name,
       d.first_name || ' ' || d.last_name AS doctor_name,
       ip.plan_name
FROM healthcare.appointments ap
JOIN healthcare.patients pt ON ap.patient_id = pt.patient_id
JOIN healthcare.doctors d ON ap.doctor_id = d.doctor_id
JOIN healthcare.patient_insurance pi ON pt.patient_id = pi.patient_id AND pi.is_primary = TRUE
JOIN healthcare.insurance_plans ip ON pi.plan_id = ip.plan_id
WHERE ap.appointment_time BETWEEN CURRENT_DATE AND CURRENT_DATE + INTERVAL '7 days';

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE healthcare.patients ( patient_id text, first_name text, last_name text, date_of_birth date, gender text, address text, phone_number text, email text, emergency_contact_name text, emergency_contact_phone text, created_at timestamp, updated_at timestamp )
CREATE TABLE healthcare.doctors ( doctor_id text, first_name text, last_name text, specialty text, license_number text, phone_number text, email text, hospital_affiliation_id text, created_at timestamp, updated_at timestamp )
CREATE TABLE healthcare.appointments ( appointment_id.text, patient_id.text, doctor_id.text, appointment_time.timestamp, duration_minutes.integer, reason.text, status.text, location_id.text, notes.text, created_at.timestamp )
CREATE TABLE healthcare.medications (
    medication_id character varying(64) NOT NULL, -- unique identifier for the medication type
    medication_name character varying(255) NOT NULL, -- common or brand name
    generic_name character varying(255), -- generic chemical name
    manufacturer character varying(100), -- drug manufacturer
    ndc_code character varying(20) UNIQUE, -- National Drug Code (optional but useful)
    description text, -- description of the medication
    PRIMARY KEY (medication_id)
)
CREATE TABLE healthcare.prescriptions ( prescription_id text, record_id text, patient_id text, doctor_id text, medication_id text, dosage text, frequency text, route text, start_date date, end_date date, quantity_dispensed numeric, refills_allowed integer, prescription_date timestamp )
CREATE TABLE healthcare.insurance_plans ( plan_id text, plan_name text, insurance_provider text, plan_type text, contact_phone text, website text )
CREATE TABLE healthcare.patient_insurance ( patient_insurance_id text, patient_id text, plan_id text, policy_number text, group_number text, subscriber_name text, effective_date date, expiration_date date, is_primary boolean )


[User] What is the fuel consumption rate of train number T1234?

[Assistant] I'm sorry, but I don't have information on the fuel consumption rate of train number T1234. The data available in the system only includes details such as train ID, model, manufacturer, year manufactured, capacity, status, and maintenance dates.

System:
You are an SQL statement expert and you can refuse the user's question if the question is not related to the table structure. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE train_station_management.trains ( train_id character varying(64) NOT NULL, train_number character varying(32) NOT NULL, model character varying(128), manufacturer character varying(128), year_manufactured integer, capacity integer NOT NULL, status character varying(32) NOT NULL DEFAULT 'Active', last_maintenance_date date, next_maintenance_date date, PRIMARY KEY (train_id), UNIQUE (train_number) )


[User] What is the maintenance schedule for the platforms at the station with ID 'ST234' for the next month?

[Assistant] I'm sorry, but I don't have access to the maintenance schedule for the platforms at any station. The data I have only includes basic station information such as station ID, name, location, and number of platforms. For maintenance schedules, you may need to contact the station management or relevant authorities.

System:
You are an SQL statement expert and you can refuse the user's question if the question is not related to the table structure. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE train_station_management.stations ( station_id text PRIMARY KEY, station_name text, city text, state_province text, country_code text, address text, timezone text, number_of_platforms int, created_at timestamp, last_updated_at timestamp )


[User] Show me the count of notifications sent for each channel for applications submitted after January 1, 2024.

[Assistant]
SELECT n.channel, COUNT(*) AS notification_count
FROM government_services.notifications n
JOIN government_services.applications a ON n.application_id = a.application_id
WHERE a.submitted_at > '2024-01-01'
GROUP BY n.channel;

[User] Now, only include channels that have sent more than 10 notifications.

[Assistant]
SELECT n.channel, COUNT(*) AS notification_count
FROM government_services.notifications n
JOIN government_services.applications a ON n.application_id = a.application_id
WHERE a.submitted_at > '2024-01-01'
GROUP BY n.channel
HAVING COUNT(*) > 10;

[User] Exclude notifications with the status 'Failed'.

[Assistant]
SELECT n.channel, COUNT(*) AS notification_count
FROM government_services.notifications n
JOIN government_services.applications a ON n.application_id = a.application_id
WHERE a.submitted_at > '2024-01-01' AND n.status != 'Failed'
GROUP BY n.channel
HAVING COUNT(*) > 10;

[User] Show for 2023 instead of 2024.

[Assistant]
SELECT n.channel, COUNT(*) AS notification_count
FROM government_services.notifications n
JOIN government_services.applications a ON n.application_id = a.application_id
WHERE a.submitted_at >= '2023-01-01' AND a.submitted_at < '2024-01-01' AND n.status != 'Failed'
GROUP BY n.channel
HAVING COUNT(*) > 10;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE government_services.applications ( application_id text, citizen_id text, service_id text, submitted_at timestamp, status text, last_updated_at timestamp, assigned_employee_id text, decision_date date, notes text, reference_number text )
CREATE TABLE government_services.notifications ( notification_id text, citizen_id text, application_id text, message_subject text, message_body text, channel text, sent_at timestamp, status text, related_entity_type text, related_entity_id text )


[User] What is the average speed of train number T9876 during its last journey?

[Assistant] I'm sorry, but I can't provide information on the average speed of train number T9876 during its last journey. The data in the trains table does not include details about travel speed or journey-specific performance metrics.

System:
You are an SQL statement expert and you can refuse the user's question if the question is not related to the table structure. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE train_station_management.trains ( train_id.text, train_number.text, model.text, manufacturer.text, year_manufactured.integer, capacity.integer, status.text, last_maintenance_date.date, next_maintenance_date.date )


[User] Find guests who have made at least one payment using a 'CreditCard'. List their full name (first and last name) and email address.

[Assistant] SELECT DISTINCT T1.first_name, T1.last_name, T1.email FROM hospitality_technology.guests AS T1 JOIN hospitality_technology.payments AS T2 ON T1.guest_id = T2.guest_id WHERE T2.payment_method = 'CreditCard';

[User] For these guests, also show the total amount they have paid using a 'CreditCard'.

[Assistant] SELECT T1.first_name, T1.last_name, T1.email, SUM(T2.amount) AS total_credit_card_amount FROM hospitality_technology.guests AS T1 JOIN hospitality_technology.payments AS T2 ON T1.guest_id = T2.guest_id WHERE T2.payment_method = 'CreditCard' GROUP BY T1.guest_id, T1.first_name, T1.last_name, T1.email;

[User] Now, only include guests where the total credit card payment exceeds 5000.

[Assistant] SELECT T1.first_name, T1.last_name, T1.email, SUM(T2.amount) AS total_credit_card_amount FROM hospitality_technology.guests AS T1 JOIN hospitality_technology.payments AS T2 ON T1.guest_id = T2.guest_id WHERE T2.payment_method = 'CreditCard' GROUP BY T1.guest_id, T1.first_name, T1.last_name, T1.email HAVING SUM(T2.amount) > 5000;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE hospitality_technology.guests (
    guest_id character varying(64) NOT NULL,  -- unique identifier for the guest profile
    first_name character varying(100) NOT NULL, -- guest's first name
    last_name character varying(100) NOT NULL, -- guest's last name
    email character varying(255) UNIQUE, -- guest's email address (unique identifier?)
    phone_number character varying(30), -- guest's phone number
    date_of_birth date, -- guest's date of birth
    address_line1 character varying(255), -- guest's home address
    city character varying(100),
    state_province character varying(100),
    postal_code character varying(20),
    country_code character varying(3),
    preferences text, -- notes on guest preferences (e.g., allergies, room location)
    loyalty_member_id character varying(64) UNIQUE, -- FK to loyalty_members table
    communication_consent boolean DEFAULT true, -- consent for marketing communications
    created_at timestamp with time zone NOT NULL DEFAULT current_timestamp,
    updated_at timestamp with time zone NOT NULL DEFAULT current_timestamp,
    PRIMARY KEY (guest_id)
)
CREATE TABLE hospitality_technology.payments (
    payment_id character varying(64) NOT NULL,  -- unique identifier for the payment transaction
    reservation_id character varying(64), -- FK to reservations (if payment is for a stay)
    guest_id character varying(64) NOT NULL, -- FK to guests (who paid)
    bill_id character varying(64), -- FK to bills/invoices this payment applies to
    amount numeric(12,2) NOT NULL, -- amount of the payment
    currency_code character varying(3) NOT NULL, -- ISO currency code (e.g., USD, EUR)
    payment_method character varying(50) NOT NULL, -- e.g., CreditCard, Cash, BankTransfer, Points, Voucher
    card_type character varying(50), -- e.g., Visa, MasterCard, Amex (if CC)
    card_last_four character varying(4), -- last 4 digits of CC (if CC)
    transaction_ref character varying(128), -- reference ID from payment gateway or processor
    payment_timestamp timestamp with time zone NOT NULL DEFAULT current_timestamp, -- when the payment occurred
    status character varying(50) NOT NULL, -- e.g., Pending, Succeeded, Failed, Refunded, Disputed
    staff_id_processed character varying(64), -- FK to staff (who processed the payment)
    notes text, -- notes about the payment
    PRIMARY KEY (payment_id),
    FOREIGN KEY (reservation_id) REFERENCES hospitality_technology.reservations(reservation_id),
    FOREIGN KEY (guest_id) REFERENCES hospitality_technology.guests(guest_id),
    FOREIGN KEY (staff_id_processed) REFERENCES hospitality_technology.staff(staff_id)
)


[User] Show all service orders with the service_id, guest's full name, and the status of each order.

[Assistant]
SELECT so.order_id, so.service_id, g.first_name, g.last_name, so.status
FROM hospitality_technology.service_orders so
JOIN hospitality_technology.guests g ON so.guest_id = g.guest_id;

[User] Only display service orders with status 'InProgress' or 'Pending', and sort them by order_timestamp ascending.

[Assistant]
SELECT so.order_id, so.service_id, g.first_name, g.last_name, so.status
FROM hospitality_technology.service_orders so
JOIN hospitality_technology.guests g ON so.guest_id = g.guest_id
WHERE so.status IN ('InProgress', 'Pending')
ORDER BY so.order_timestamp ASC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE hospitality_technology.room_types (
    room_type_id character varying(64) NOT NULL, -- unique identifier for the room type
    property_id character varying(64) NOT NULL, -- FK to properties table (type might be property-specific)
    type_name character varying(100) NOT NULL, -- e.g., Standard King, Deluxe Queen, Executive Suite
    description text, -- description of the room type
    base_rate numeric(10, 2) NOT NULL, -- standard price per night
    max_occupancy integer NOT NULL, -- maximum number of guests
    bed_type character varying(50), -- e.g., King, Queen, 2 Doubles, Twin
    area_sqft numeric(8,2), -- size of the room in square feet
    amenities text, -- comma-separated list or JSON of amenities
    PRIMARY KEY (room_type_id),
    FOREIGN KEY (property_id) REFERENCES hospitality_technology.properties(property_id)
)
CREATE TABLE hospitality_technology.guests ( guest_id text, first_name text, last_name text, email text, phone_number text, date_of_birth date, address_line1 text, city text, state_province text, postal_code text, country_code text, preferences text, loyalty_member_id text, communication_consent boolean, created_at timestamp, updated_at timestamp )
CREATE TABLE hospitality_technology.service_orders ( order_id character varying(64) NOT NULL, reservation_id character varying(64), guest_id character varying(64) NOT NULL, service_id character varying(64) NOT NULL, staff_id_ordered character varying(64), staff_id_delivered character varying(64), order_timestamp timestamp with time zone NOT NULL DEFAULT current_timestamp, delivery_timestamp timestamp with time zone, quantity integer NOT NULL DEFAULT 1, unit_price numeric(10, 2) NOT NULL, total_price numeric(12, 2) NOT NULL, status character varying(50) NOT NULL, notes text, bill_id character varying(64), PRIMARY KEY (order_id), FOREIGN KEY (reservation_id) REFERENCES hospitality_technology.reservations(reservation_id), FOREIGN KEY (guest_id) REFERENCES hospitality_technology.guests(guest_id), FOREIGN KEY (service_id) REFERENCES hospitality_technology.services(service_id), FOREIGN KEY (staff_id_ordered) REFERENCES hospitality_technology.staff(staff_id), FOREIGN KEY (staff_id_delivered) REFERENCES hospitality_technology.staff(staff_id) )
CREATE TABLE hospitality_technology.payments (
    payment_id character varying(64) NOT NULL,  -- unique identifier for the payment transaction
    reservation_id character varying(64), -- FK to reservations (if payment is for a stay)
    guest_id character varying(64) NOT NULL, -- FK to guests (who paid)
    bill_id character varying(64), -- FK to bills/invoices this payment applies to
    amount numeric(12,2) NOT NULL, -- amount of the payment
    currency_code character varying(3) NOT NULL, -- ISO currency code (e.g., USD, EUR)
    payment_method character varying(50) NOT NULL, -- e.g., CreditCard, Cash, BankTransfer, Points, Voucher
    card_type character varying(50), -- e.g., Visa, MasterCard, Amex (if CC)
    card_last_four character varying(4), -- last 4 digits of CC (if CC)
    transaction_ref character varying(128), -- reference ID from payment gateway or processor
    payment_timestamp timestamp with time zone NOT NULL DEFAULT current_timestamp, -- when the payment occurred
    status character varying(50) NOT NULL, -- e.g., Pending, Succeeded, Failed, Refunded, Disputed
    staff_id_processed character varying(64), -- FK to staff (who processed the payment)
    notes text, -- notes about the payment
    PRIMARY KEY (payment_id),
    FOREIGN KEY (reservation_id) REFERENCES hospitality_technology.reservations(reservation_id),
    FOREIGN KEY (guest_id) REFERENCES hospitality_technology.guests(guest_id),
    FOREIGN KEY (staff_id_processed) REFERENCES hospitality_technology.staff(staff_id)
)


[User] I need to find all tickets for a specific route 'RT456' along with the car details and route information.

[Assistant]
SELECT t.ticket_id, t.seat_number, t.price, tc.car_number, tc.car_type, r.route_name, r.description
FROM train_station_management.tickets t
JOIN train_station_management.train_cars tc ON t.car_id = tc.car_id
JOIN train_station_management.trains tr ON tc.train_id = tr.train_id
JOIN train_station_management.routes r ON tr.route_id = r.route_id
WHERE r.route_id = 'RT456';

[User] Can you filter this to show only tickets that have been checked in?

[Assistant]
SELECT t.ticket_id, t.seat_number, t.price, tc.car_number, tc.car_type, r.route_name, r.description
FROM train_station_management.tickets t
JOIN train_station_management.train_cars tc ON t.car_id = tc.car_id
JOIN train_station_management.trains tr ON tc.train_id = tr.train_id
JOIN train_station_management.routes r ON tr.route_id = r.route_id
WHERE r.route_id = 'RT456' AND t.is_checked_in = true;

[User] Can you also add the ticket type to the results?

[Assistant]
SELECT t.ticket_id, t.seat_number, t.price, t.ticket_type, tc.car_number, tc.car_type, r.route_name, r.description
FROM train_station_management.tickets t
JOIN train_station_management.train_cars tc ON t.car_id = tc.car_id
JOIN train_station_management.trains tr ON tc.train_id = tr.train_id
JOIN train_station_management.routes r ON tr.route_id = r.route_id
WHERE r.route_id = 'RT456' AND t.is_checked_in = true;

System:
You are an expert in writing database language. You can write a corresponding database language query to answer the user's question based on the table structure described by the table creation statement.
##Table Structure
CREATE TABLE train_station_management.train_cars (
    car_id character varying(64) NOT NULL, -- Unique identifier for the train car
    train_id character varying(64) NOT NULL, -- Foreign key referencing trains
    car_number character varying(10) NOT NULL, -- Identifier of the car within the train set
    car_type character varying(64) NOT NULL, -- e.g., Locomotive, Passenger, Sleeper, Dining, Baggage
    class character varying(32), -- e.g., First, Business, Economy (null for non-passenger cars)
    capacity integer, -- Passenger capacity of this specific car (null for non-passenger cars)
    features text, -- Comma-separated list of features (e.g., 'WiFi', 'Power Outlet', 'Accessible Restroom')
    PRIMARY KEY (car_id),
    FOREIGN KEY (train_id) REFERENCES train_station_management.trains(train_id)
)
CREATE TABLE train_station_management.routes (
    route_id character varying(64) NOT NULL, -- Unique identifier for the route
    route_name character varying(128) NOT NULL, -- Name of the route (e.g., 'Northeast Corridor')
    description text, -- Description of the route
    origin_station_id character varying(64) NOT NULL, -- Starting station
    destination_station_id character varying(64) NOT NULL, -- Final station
    is_active boolean NOT NULL DEFAULT true, -- Is the route currently operational?
    PRIMARY KEY (route_id),
    FOREIGN KEY (origin_station_id) REFERENCES train_station_management.stations(station_id),
    FOREIGN KEY (destination_station_id) REFERENCES train_station_management.stations(station_id)
)
CREATE TABLE train_station_management.tickets (
    ticket_id character varying(64) NOT NULL, -- Unique identifier for the ticket
    booking_id character varying(64) NOT NULL, -- Foreign key referencing the booking
    car_id character varying(64) NOT NULL, -- Foreign key referencing the train car
    seat_number character varying(10), -- Assigned seat number (e.g., '12A')
    ticket_type character varying(32) NOT NULL DEFAULT 'Adult', -- e.g., Adult, Child, Senior, Student
    price numeric(10, 2) NOT NULL, -- Price of this specific ticket
    is_checked_in boolean NOT NULL DEFAULT false, -- Has the passenger checked in with this ticket?
    qr_code_data text, -- Data for generating a QR code for the ticket
    PRIMARY KEY (ticket_id),
    FOREIGN KEY (booking_id) REFERENCES train_station_management.bookings(booking_id),
    FOREIGN KEY (car_id) REFERENCES train_station_management.train_cars(car_id)
)


[User] Which customers have policies that expired in the last month? Please show the customer ID, policy number, and expiration date.

[Assistant]
SELECT c.customer_id, p.policy_number, p.end_date
FROM insurance.customers c
JOIN insurance.policies p ON c.customer_id = p.customer_id
WHERE p.end_date >= (CURRENT_DATE - INTERVAL '1 month') AND p.end_date < CURRENT_DATE;

[User] Add the customer's email to the results.

[Assistant]
SELECT c.customer_id, c.email, p.policy_number, p.end_date
FROM insurance.customers c
JOIN insurance.policies p ON c.customer_id = p.customer_id
WHERE p.end_date >= (CURRENT_DATE - INTERVAL '1 month') AND p.end_date < CURRENT_DATE;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE insurance.customers ( customer_id text, first_name text, last_name text, date_of_birth date, ssn_hash text, address_line1 text, address_line2 text, city text, state text, zip_code text, country text, phone_number text, email text, created_at timestamp, updated_at timestamp, status text )
CREATE TABLE insurance.policies ( policy_id text, customer_id text, product_id text, agent_id text, policy_number text, start_date date, end_date date, premium_amount numeric, coverage_limit numeric, deductible numeric, status text, issued_at timestamp, cancellation_date date, cancellation_reason text )
CREATE TABLE insurance.claims ( claim_id text, policy_id text, customer_id text, incident_date timestamp, reported_date timestamp, description text, estimated_loss numeric, status text, settlement_amount numeric, settlement_date date, claim_handler_id text, police_report_number text )
CREATE TABLE insurance.insurance_products ( product_id text, product_name text, product_type text, description text, base_premium numeric, coverage_details text, underwriting_rules text, is_active boolean, created_at timestamp, updated_at timestamp )


[User] List all passengers who have never made a booking, showing their passenger_id, first_name, last_name, and email.

[Assistant]
SELECT
    p.passenger_id,
    p.first_name,
    p.last_name,
    p.email
FROM transportation.passengers p
LEFT JOIN transportation.bookings b ON p.passenger_id = b.passenger_id
WHERE b.booking_id IS NULL;

[User] Actually, please include their phone_number as well.

[Assistant]
SELECT
    p.passenger_id,
    p.first_name,
    p.last_name,
    p.email,
    p.phone_number
FROM transportation.passengers p
LEFT JOIN transportation.bookings b ON p.passenger_id = b.passenger_id
WHERE b.booking_id IS NULL;

[User] Also, limit to passengers created after '2022-01-01'.

[Assistant]
SELECT
    p.passenger_id,
    p.first_name,
    p.last_name,
    p.email,
    p.phone_number
FROM transportation.passengers p
LEFT JOIN transportation.bookings b ON p.passenger_id = b.passenger_id
WHERE b.booking_id IS NULL
  AND p.created_at > '2022-01-01';

[User] Finally, sort the results by last_name in ascending order.

[Assistant]
SELECT
    p.passenger_id,
    p.first_name,
    p.last_name,
    p.email,
    p.phone_number
FROM transportation.passengers p
LEFT JOIN transportation.bookings b ON p.passenger_id = b.passenger_id
WHERE b.booking_id IS NULL
  AND p.created_at > '2022-01-01'
ORDER BY p.last_name ASC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE transportation.vehicles ( vehicle_id text PRIMARY KEY, license_plate text, vin text, make text, model text, year int, type text, capacity int, fuel_type text, status text, depot_id text, acquisition_date date )
CREATE TABLE transportation.drivers ( driver_id text, employee_id text, first_name text, last_name text, license_number text, license_expiry_date date, contact_number text, email text, hire_date date, status text )
CREATE TABLE transportation.routes ( route_id text PRIMARY KEY, route_number text, description text, origin_location_id text, destination_location_id text, distance_km numeric, estimated_duration_minutes int, type text )
CREATE TABLE transportation.trips ( trip_id text PRIMARY KEY, route_id text, vehicle_id text, driver_id text, scheduled_departure timestamp, actual_departure timestamp, scheduled_arrival timestamp, actual_arrival timestamp, origin_location_id text, destination_location_id text, status text, passenger_count int, cargo_manifest_id text )
CREATE TABLE transportation.locations ( location_id text PRIMARY KEY, name text, type text, address_line1 text, city text, state_province text, postal_code text, country text, latitude numeric, longitude numeric, timezone text )
CREATE TABLE transportation.maintenance_logs ( log_id.text, vehicle_id.text, service_date.date, odometer_reading.integer, service_type.text, description.text, cost.numeric, mechanic_name.text, next_service_due_date.date )
CREATE TABLE transportation.passengers (
    passenger_id character varying(64) NOT NULL,  -- unique identifier for the passenger
    first_name character varying(128) NOT NULL, -- passenger's first name
    last_name character varying(128) NOT NULL, -- passenger's last name
    email character varying(128) UNIQUE, -- email address
    phone_number character varying(32) UNIQUE, -- phone number
    date_of_birth date, -- passenger's date of birth
    loyalty_program_id character varying(64), -- identifier for loyalty program membership
    created_at timestamp with time zone NOT NULL, -- time when the passenger record was created
    PRIMARY KEY (passenger_id)
)
CREATE TABLE transportation.bookings ( booking_id text, passenger_id text, trip_id text, seat_number text, booking_time timestamp, status text, fare numeric, payment_transaction_id text, special_requests text )


[User] For each route, show the route number and the total number of trips associated with it.

[Assistant] SELECT T2.route_number, count(T1.trip_id) FROM transportation.trips AS T1 JOIN transportation.routes AS T2 ON T1.route_id = T2.route_id GROUP BY T2.route_number

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE transportation.vehicles ( vehicle_id text PRIMARY KEY, license_plate text, vin text, make text, model text, year int, type text, capacity int, fuel_type text, status text, depot_id text, acquisition_date date )
CREATE TABLE transportation.drivers ( driver_id text PRIMARY KEY, employee_id text, first_name text, last_name text, license_number text, license_expiry_date date, contact_number text, email text, hire_date date, status text )
CREATE TABLE transportation.routes ( route_id text PRIMARY KEY, route_number text, description text, origin_location_id text, destination_location_id text, distance_km numeric, estimated_duration_minutes int, type text )
CREATE TABLE transportation.trips ( trip_id text PRIMARY KEY, route_id text, vehicle_id text, driver_id text, scheduled_departure timestamp, actual_departure timestamp, scheduled_arrival timestamp, actual_arrival timestamp, origin_location_id text, destination_location_id text, status text, passenger_count int, cargo_manifest_id text )
CREATE TABLE transportation.fuel_logs ( fuel_log_id text PRIMARY KEY, vehicle_id text, trip_id text, log_timestamp timestamp, fuel_type text, quantity numeric, unit text, cost_per_unit numeric, total_cost numeric, odometer_reading int, location_id text )
CREATE TABLE transportation.passengers ( passenger_id text PRIMARY KEY, first_name text, last_name text, email text, phone_number text, date_of_birth date, loyalty_program_id text, created_at timestamp )


[User] How many services are defined for each service category?

[Assistant] SELECT category, COUNT(*) AS service_count FROM government_services.services GROUP BY category;

[User] Only show categories that have more than 15 services listed.

[Assistant] SELECT category, COUNT(*) AS service_count FROM government_services.services GROUP BY category HAVING COUNT(*) > 15;

[User] Could you only count services that are currently marked as active?

[Assistant] SELECT category, COUNT(*) AS service_count FROM government_services.services WHERE is_active = true GROUP BY category HAVING COUNT(*) > 15;

[User] Also, for these categories, provide the average standard fee for the active services.

[Assistant] SELECT category, COUNT(*) AS service_count, AVG(standard_fee) AS average_fee FROM government_services.services WHERE is_active = true GROUP BY category HAVING COUNT(*) > 15;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE government_services.citizens (
    citizen_id character varying(64) NOT NULL,  -- unique identifier for the citizen
    national_id_number character varying(128) NOT NULL UNIQUE, -- official national identification number
    first_name character varying(100) NOT NULL,
    last_name character varying(100) NOT NULL,
    date_of_birth date NOT NULL,
    gender character varying(20),
    primary_address text NOT NULL, -- full primary residential address
    contact_email character varying(128) UNIQUE,
    contact_phone character varying(32),
    registration_date timestamp NOT NULL, -- when the citizen profile was created
    is_verified boolean DEFAULT false, -- whether identity has been officially verified
    PRIMARY KEY (citizen_id)
)
CREATE TABLE government_services.agencies ( agency_id character varying(64) NOT NULL, agency_name character varying(255) NOT NULL, jurisdiction_level character varying(50) NOT NULL, primary_contact_email character varying(128), main_phone_number character varying(32), website_url character varying(255), established_date date, parent_agency_id character varying(64), PRIMARY KEY (agency_id) )
CREATE TABLE government_services.services (
    service_id character varying(64) NOT NULL, -- unique identifier for the service
    agency_id character varying(64) NOT NULL, -- FK to agencies table
    service_name character varying(255) NOT NULL, -- name of the service (e.g., Driver's License Renewal)
    description text,
    category character varying(100), -- e.g., Licensing, Benefits, Taxation, Permits
    eligibility_criteria text, -- description of who is eligible
    standard_fee numeric(10, 2) DEFAULT 0.00, -- typical fee for the service
    average_processing_time_days integer, -- estimated processing time
    is_active boolean DEFAULT true, -- whether the service is currently offered
    online_application_url character varying(255),
    PRIMARY KEY (service_id)
)
CREATE TABLE government_services.applications (
    application_id character varying(64) NOT NULL, -- unique identifier for the application
    citizen_id character varying(64) NOT NULL, -- FK to citizens table
    service_id character varying(64) NOT NULL, -- FK to services table
    submitted_at timestamp NOT NULL, -- time the application was submitted
    status character varying(50) NOT NULL, -- e.g., Submitted, Processing, Approved, Rejected, Pending Info
    last_updated_at timestamp NOT NULL, -- time the status or details last changed
    assigned_employee_id character varying(64), -- FK to employees table (optional)
    decision_date date, -- date when a final decision was made
    notes text, -- internal notes or citizen-provided comments
    reference_number character varying(100) UNIQUE, -- publicly visible reference number
    PRIMARY KEY (application_id)
)
CREATE TABLE government_services.documents ( document_id text PRIMARY KEY, application_id text, citizen_id text, document_type text, file_reference text, upload_timestamp timestamp, expiry_date date, verification_status text, verified_by_employee_id text, verification_timestamp timestamp )
CREATE TABLE government_services.payments ( payment_id text, application_id text, citizen_id text, service_id text, amount numeric, currency text, payment_method text, payment_provider_reference text, payment_timestamp timestamp, status text, notes text )
CREATE TABLE government_services.employees (
    employee_id character varying(64) NOT NULL, -- unique identifier for the government employee
    agency_id character varying(64) NOT NULL, -- FK to agencies table
    first_name character varying(100) NOT NULL,
    last_name character varying(100) NOT NULL,
    job_title character varying(150) NOT NULL,
    department character varying(100),
    work_email character varying(128) NOT NULL UNIQUE,
    work_phone character varying(32),
    hire_date date NOT NULL,
    termination_date date, -- null if currently employed
    access_level character varying(50), -- Role or permission level
    manager_employee_id character varying(64), -- FK to self for reporting structure
    PRIMARY KEY (employee_id)
)
CREATE TABLE government_services.appointments ( appointment_id character varying(64) NOT NULL, citizen_id character varying(64) NOT NULL, employee_id character varying(64), location_id character varying(64), service_id character varying(64), scheduled_start_time timestamp NOT NULL, scheduled_end_time timestamp, purpose text NOT NULL, status character varying(30) NOT NULL, booking_method character varying(50), created_at timestamp NOT NULL, notes text, PRIMARY KEY (appointment_id) )


[User] What is the current address of the employee with ID 'EMP234'?

[Assistant] I'm sorry, but I can't provide the current address of an employee as this information is not stored in the database table.

System:
You are an SQL statement expert and you can refuse the user's question if the question is not related to the table structure. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE manufacturing.employees ( employee_id.text, first_name.text, last_name.text, job_title.text, skill_certifications.text, hire_date.date, assigned_line_id.text, employment_status.text, supervisor_employee_id.text )


[User] For each patient, calculate the total duration of all their completed appointments. Show the patient ID and the total duration in minutes, sorted by total duration descending.

[Assistant] SELECT patient_id, SUM(duration_minutes) AS total_completed_duration FROM healthcare.appointments WHERE status = 'Completed' GROUP BY patient_id ORDER BY total_completed_duration DESC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE healthcare.appointments (
    appointment_id character varying(64) NOT NULL, -- unique identifier for the appointment
    patient_id character varying(64) NOT NULL, -- FK to patients table
    doctor_id character varying(64) NOT NULL, -- FK to doctors table
    appointment_time timestamp with time zone NOT NULL, -- date and time of the appointment
    duration_minutes integer NOT NULL, -- expected duration in minutes
    reason text, -- reason for the visit
    status character varying(32) NOT NULL, -- e.g., Scheduled, Completed, Cancelled, No-show
    location_id character varying(64), -- FK to a potential locations/clinics table
    notes text, -- notes related to scheduling
    created_at timestamp with time zone NOT NULL DEFAULT current_timestamp,
    PRIMARY KEY (appointment_id)
)


[User] List all insurance products that have no active policies currently.

[Assistant] SELECT ip.product_id, ip.product_name, ip.product_type FROM insurance.insurance_products ip LEFT JOIN insurance.policies p ON ip.product_id = p.product_id AND p.status = 'Active' WHERE p.policy_id IS NULL AND ip.is_active = true;

[User] Now include only products that were created in the last year.

[Assistant] SELECT ip.product_id, ip.product_name, ip.product_type FROM insurance.insurance_products ip LEFT JOIN insurance.policies p ON ip.product_id = p.product_id AND p.status = 'Active' WHERE p.policy_id IS NULL AND ip.is_active = true AND ip.created_at >= CURRENT_DATE - INTERVAL '1 year';

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE insurance.customers ( customer_id character varying(64) NOT NULL, first_name character varying(100) NOT NULL, last_name character varying(100) NOT NULL, date_of_birth date NOT NULL, ssn_hash character varying(128), address_line1 character varying(255) NOT NULL, address_line2 character varying(255), city character varying(100) NOT NULL, state character varying(50) NOT NULL, zip_code character varying(20) NOT NULL, country character varying(50) NOT NULL DEFAULT 'USA', phone_number character varying(30), email character varying(128) UNIQUE, created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, updated_at timestamp, status character varying(20) NOT NULL DEFAULT 'Active', PRIMARY KEY (customer_id) )
CREATE TABLE insurance.policies ( policy_id character varying(64) NOT NULL, customer_id character varying(64) NOT NULL, product_id character varying(64) NOT NULL, agent_id character varying(64), policy_number character varying(100) NOT NULL UNIQUE, start_date date NOT NULL, end_date date NOT NULL, premium_amount numeric(12, 2) NOT NULL, coverage_limit numeric(15, 2) NOT NULL, deductible numeric(10, 2) NOT NULL, status character varying(30) NOT NULL, issued_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, cancellation_date date, cancellation_reason text, PRIMARY KEY (policy_id) )
CREATE TABLE insurance.claims ( claim_id character varying(64) NOT NULL, policy_id character varying(64) NOT NULL, customer_id character varying(64) NOT NULL, incident_date timestamp NOT NULL, reported_date timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, description text NOT NULL, estimated_loss numeric(15, 2), status character varying(30) NOT NULL, settlement_amount numeric(15, 2), settlement_date date, claim_handler_id character varying(64), police_report_number character varying(100), PRIMARY KEY (claim_id) )
CREATE TABLE insurance.insurance_products ( product_id character varying(64) NOT NULL, product_name character varying(150) NOT NULL, product_type character varying(50) NOT NULL, description text, base_premium numeric(10, 2) NOT NULL, coverage_details text, underwriting_rules text, is_active boolean NOT NULL DEFAULT true, created_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, updated_at timestamp, PRIMARY KEY (product_id) )
CREATE TABLE insurance.claim_documents ( document_id character varying(64) NOT NULL, claim_id character varying(64) NOT NULL, document_type character varying(50) NOT NULL, file_name character varying(255) NOT NULL, file_path character varying(512) NOT NULL, file_size_bytes integer, mime_type character varying(100), uploaded_by character varying(64), uploaded_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, description text, PRIMARY KEY (document_id) )


[User] What is the total revenue generated by ticket sales at the station with ID 'ST101' for the past month?

[Assistant] I'm sorry, but I can't provide information on the revenue generated by ticket sales as this data is not available in the current database table. The table only contains details about station information such as name, location, and platform count. If you have another question or need assistance with something else related to the station data, I'm happy to help.

System:
You are an SQL statement expert and you can refuse the user's question if the question is not related to the table structure. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE train_station_management.stations ( station_id.text, station_name.text, city.text, state_province.text, country_code.text, address.text, timezone.text, number_of_platforms.integer, created_at.timestamp, last_updated_at.timestamp )


[User] List all users who have deployed contracts, along with their email addresses and the count of contracts they've deployed.

[Assistant] SELECT u.user_id, u.email, COUNT(c.contract_id) AS contract_count FROM web3.users u JOIN web3.contracts c ON u.user_id = c.deployer_address GROUP BY u.user_id, u.email;

[User] Actually, I only want to see users who have deployed more than 3 contracts.

[Assistant] SELECT u.user_id, u.email, COUNT(c.contract_id) AS contract_count FROM web3.users u JOIN web3.contracts c ON u.user_id = c.deployer_address GROUP BY u.user_id, u.email HAVING COUNT(c.contract_id) > 3;

[User] There's an error in your SQL, it should be 'deployer_address' not 'user_id' in the JOIN condition.

[Assistant] SELECT u.user_id, u.email, COUNT(c.contract_id) AS contract_count FROM web3.users u JOIN web3.contracts c ON u.user_id = c.deployer_address GROUP BY u.user_id, u.email HAVING COUNT(c.contract_id) > 3;

[User] Now sort the results by contract_count in descending order.

[Assistant] SELECT u.user_id, u.email, COUNT(c.contract_id) AS contract_count FROM web3.users u JOIN web3.contracts c ON u.user_id = c.deployer_address GROUP BY u.user_id, u.email HAVING COUNT(c.contract_id) > 3 ORDER BY contract_count DESC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE web3.contracts ( contract_id.text, address.text, abi.text, bytecode.text, deployer_address.text, deployed_at.timestamp, network_id.text, status.text )
CREATE TABLE web3.transactions ( transaction_id text PRIMARY KEY, from_address text, to_address text, value numeric, gas_used int, gas_price numeric, block_number int, timestamp timestamp, input_data text, status text, nonce int )
CREATE TABLE web3.users ( user_id character varying(64) NOT NULL, username character varying(128) NOT NULL, email character varying(128) NOT NULL, password_hash text NOT NULL, created_at timestamp NOT NULL, PRIMARY KEY (user_id) )


[User] Show the first name, last name, and position of all staff members who are not currently active.

[Assistant] SELECT first_name ,  last_name ,  position FROM hospitality_technology.staff WHERE is_active  =  false

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE hospitality_technology.properties (
    property_id character varying(64) NOT NULL,  -- unique identifier for the property (hotel, resort, etc.)
    property_name character varying(255) NOT NULL, -- name of the property
    address_line1 character varying(255) NOT NULL, -- primary address line
    address_line2 character varying(255), -- secondary address line
    city character varying(100) NOT NULL, -- city
    state_province character varying(100), -- state or province
    postal_code character varying(20) NOT NULL, -- zip or postal code
    country_code character varying(3) NOT NULL, -- ISO country code (e.g., USA, CAN)
    phone_number character varying(30), -- main contact phone
    email_address character varying(255), -- main contact email
    property_type character varying(50) NOT NULL, -- e.g., Hotel, Resort, B&B, Motel
    star_rating numeric(2,1), -- star rating (e.g., 4.5)
    timezone character varying(64) NOT NULL, -- IANA timezone ID (e.g., America/New_York)
    manager_staff_id character varying(64), -- FK to staff table for the general manager
    created_at timestamp with time zone NOT NULL DEFAULT current_timestamp, -- record creation time
    updated_at timestamp with time zone NOT NULL DEFAULT current_timestamp, -- record last update time
    PRIMARY KEY (property_id)
)
CREATE TABLE hospitality_technology.rooms (
    room_id character varying(64) NOT NULL,  -- unique identifier for the room
    property_id character varying(64) NOT NULL, -- FK to properties table
    room_number character varying(10) NOT NULL, -- room number identifier (e.g., '101', 'Suite 2B')
    room_type_id character varying(64) NOT NULL, -- FK to room_types table
    floor integer, -- floor number the room is on
    status character varying(50) NOT NULL, -- e.g., Available, Occupied, Cleaning, OutOfOrder, Maintenance
    is_smoking boolean NOT NULL DEFAULT false, -- smoking allowed flag
    features text, -- description of features (e.g., Balcony, Sea View, Jacuzzi)
    current_condition text, -- notes on room condition
    last_cleaned_at timestamp with time zone, -- timestamp of last cleaning
    PRIMARY KEY (room_id),
    FOREIGN KEY (property_id) REFERENCES hospitality_technology.properties(property_id),
    FOREIGN KEY (room_type_id) REFERENCES hospitality_technology.room_types(room_type_id)
)
CREATE TABLE hospitality_technology.staff (
    staff_id character varying(64) NOT NULL,  -- unique identifier for the staff member
    property_id character varying(64) NOT NULL, -- FK to properties table (primary property)
    first_name character varying(100) NOT NULL,
    last_name character varying(100) NOT NULL,
    position character varying(100) NOT NULL, -- e.g., Front Desk Agent, Housekeeper, Manager, Concierge
    work_email character varying(255) UNIQUE, -- staff member's work email
    work_phone character varying(30),
    hire_date date NOT NULL,
    termination_date date, -- date employment ended (if applicable)
    is_active boolean NOT NULL DEFAULT true, -- currently employed flag
    access_level integer NOT NULL, -- permission level within systems (e.g., 1=basic, 5=admin)
    manager_id character varying(64), -- FK to staff table (self-referencing for supervisor)
    created_at timestamp with time zone NOT NULL DEFAULT current_timestamp,
    PRIMARY KEY (staff_id),
    FOREIGN KEY (property_id) REFERENCES hospitality_technology.properties(property_id),
    FOREIGN KEY (manager_id) REFERENCES hospitality_technology.staff(staff_id)
)
CREATE TABLE hospitality_technology.reviews (
    review_id character varying(64) NOT NULL,  -- unique identifier for the review
    property_id character varying(64) NOT NULL, -- FK to properties table
    reservation_id character varying(64) UNIQUE, -- FK to reservations (link review to a specific stay, optional but good)
    guest_id character varying(64) NOT NULL, -- FK to guests table
    rating_overall integer, -- overall score (e.g., 1-5 or 1-10)
    rating_cleanliness integer,
    rating_service integer,
    rating_location integer,
    rating_value integer,
    comment text, -- guest's written feedback
    review_source character varying(100), -- e.g., DirectSurvey, TripAdvisor, Google, Booking.com
    review_date timestamp with time zone NOT NULL DEFAULT current_timestamp, -- when the review was submitted
    is_public boolean DEFAULT true, -- whether the review is publicly visible
    staff_response text, -- official response from the property
    response_staff_id character varying(64), -- FK to staff (who responded)
    response_date timestamp with time zone, -- when the response was posted
    PRIMARY KEY (review_id),
    FOREIGN KEY (property_id) REFERENCES hospitality_technology.properties(property_id),
    FOREIGN KEY (reservation_id) REFERENCES hospitality_technology.reservations(reservation_id),
    FOREIGN KEY (guest_id) REFERENCES hospitality_technology.guests(guest_id),
    FOREIGN KEY (response_staff_id) REFERENCES hospitality_technology.staff(staff_id)
)


[User] Which NFTs minted in the past 14 days on Ethereum have a rarity_score above 70? For each, show contract address, token ID, name, and minter.

[Assistant]
SELECT contract_address, token_id, name, minter
FROM nft_metadata
WHERE blockchain = 'Ethereum'
  AND mint_time >= (extract(epoch from now()) - 14*24*60*60)
  AND rarity_score > 70;

[User] For these NFTs, can you also include the collection name and symbol by joining with the nft_collections table?

[Assistant]
SELECT nm.contract_address, nm.token_id, nm.name, nm.minter, nc.name AS collection_name, nc.symbol
FROM nft_metadata nm
JOIN nft_collections nc
  ON nm.blockchain = nc.blockchain AND nm.contract_address = nc.contract_address
WHERE nm.blockchain = 'Ethereum'
  AND nm.mint_time >= (extract(epoch from now()) - 14*24*60*60)
  AND nm.rarity_score > 70;

[User] Can you filter only those collections where the erc_type is 'ERC1155'?

[Assistant]
SELECT nm.contract_address, nm.token_id, nm.name, nm.minter, nc.name AS collection_name, nc.symbol
FROM nft_metadata nm
JOIN nft_collections nc
  ON nm.blockchain = nc.blockchain AND nm.contract_address = nc.contract_address
WHERE nm.blockchain = 'Ethereum'
  AND nm.mint_time >= (extract(epoch from now()) - 14*24*60*60)
  AND nm.rarity_score > 70
  AND nc.erc_type = 'ERC1155';

[User] Now, also include the owner for each NFT, and order the results by rarity_rank ascending.

[Assistant]
SELECT nm.contract_address, nm.token_id, nm.name, nm.minter, nm.owner, nc.name AS collection_name, nc.symbol
FROM nft_metadata nm
JOIN nft_collections nc
  ON nm.blockchain = nc.blockchain AND nm.contract_address = nc.contract_address
WHERE nm.blockchain = 'Ethereum'
  AND nm.mint_time >= (extract(epoch from now()) - 14*24*60*60)
  AND nm.rarity_score > 70
  AND nc.erc_type = 'ERC1155'
ORDER BY nm.rarity_rank ASC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE nft_holders ( block_number bigint NOT NULL, contract_address varchar NOT NULL, wallet_address varchar NOT NULL, token_id varchar NOT NULL, contract_type varchar NOT NULL, amount varchar NOT NULL, pk varchar NOT NULL )
CREATE TABLE sui_coins ( object_id varchar NOT NULL, status varchar NOT NULL, coin_type varchar NOT NULL, balance varchar NOT NULL, owner varchar NOT NULL )
CREATE TABLE sui_coins_metadata (
    object_id varchar NOT NULL, -- object id of the coin metadata object
    coin_type varchar NOT NULL, -- coin type, eg. 0x...66::reap_token::REAP_TOKEN
    status varchar NOT NULL, -- coin status, eg. exists, deleted
    decimals bigint NOT NULL, -- decimals of the coin
    description varchar NOT NULL, -- description of the coin
    icon_url varchar NOT NULL, -- icon url of the coin
    symbol varchar NOT NULL, -- symbol of the coin
    name varchar NOT NULL  -- name of the coin
)
CREATE TABLE sui_nfts ( object_id text, status text, collection_type text, package_id text, previous_transaction text, display text, owner text, name text )
CREATE TABLE nft_metadata ( blockchain text, contract_address text, token_id text, contract_name text, erc_type text, amount bigint, minter text, owner text, mint_block_number bigint, mint_time bigint, mint_transaction_hash text, mint_price text, token_uri text, metadata text, name text, image_uri text, traits text, updated_at bigint, status text, rarity_score real, rarity_rank integer, unique_attribute_count integer, pk integer )
CREATE TABLE nft_collections ( blockchain varchar NOT NULL, contract_address varchar NOT NULL, name varchar NOT NULL, symbol varchar NOT NULL, deploy_block_number bigint NOT NULL, deploy_block_time bigint NOT NULL, erc_type varchar NOT NULL, owner varchar NOT NULL, traits varchar NOT NULL, description varchar NOT NULL, slug varchar NOT NULL, media_info varchar NOT NULL, image_url varchar NOT NULL, banner_image_url varchar NOT NULL, updated_at bigint NOT NULL, banner varchar NOT NULL, token_count bigint NOT NULL, floor_price varchar NOT NULL, floor_price_symbol varchar NOT NULL, floor_price_contract varchar NOT NULL, pk integer NOT NULL )
CREATE TABLE token_prices ( uuid text, blockchain text, address text, decimals bigint, symbol text, price real, timestamp timestamp )
CREATE TABLE token_prices_latest (
    blockchain varchar(36) NOT NULL, -- blockchain fields for the functionType  in contract
    address varchar(42) NOT NULL, -- address fields for the functionType  in contract
    decimals bigint NOT NULL, -- decimals fields for the functionType  in contract
    symbol varchar(36) NOT NULL, -- symbol fields for the functionType  in contract
    price real NOT NULL, -- price fields for the functionType  in contract
    timestamp timestamp(6) NOT NULL  -- timestamp fields for the functionType  in contract
)
CREATE TABLE erc20_approval ( block_number bigint NOT NULL, block_timestamp timestamp(6) NOT NULL, transaction_index integer NOT NULL, transaction_hash varchar NOT NULL, log_index integer NOT NULL, contract_address varchar NOT NULL, pk integer NOT NULL )
CREATE TABLE token_balances ( block_number.bigint, block_timestamp.timestamp, tick.text, wallet_address.text, total_supply.decimal, amount.decimal )
CREATE TABLE token_info (
    block_timestamp timestamp(3) NOT NULL, -- Timestamp of the block containing the inscription (matches block_timestamp in transactions table)
    block_number bigint NOT NULL, -- Block number containing the inscription (matches block_number in transactions table)
    tx_index integer NOT NULL, -- Index of the transaction containing the inscription (matches transaction_index in transactions table)
    tx_hash varchar(66) NOT NULL, -- Unique identifier of the transaction containing the inscription (matches hash in transactions table)
    tick varchar NOT NULL, -- Token tick
    max_supply decimal(38,0) NOT NULL, -- Max supply
    lim decimal(38,0) NOT NULL, -- Limit of each mint
    wlim decimal(38,0) NOT NULL, -- Limit of each address can maximum mint
    dec integer NOT NULL, -- Decimal for minimum divie
    creator varchar(42) NOT NULL  -- Address originating the inscription (matches from_address in transactions table)
)
CREATE TABLE mud_holesky_redstone (
    address varchar NOT NULL, -- address fields for the functionType  in contract
    table_id varchar NOT NULL, -- table_id fields for the functionType  in contract
    key_bytes varchar NOT NULL, -- key_bytes fields for the functionType  in contract
    key0 varchar NOT NULL, -- key0 fields for the functionType  in contract
    key1 varchar NOT NULL, -- key1 fields for the functionType  in contract
    static_data varchar NOT NULL, -- static_data fields for the functionType  in contract
    encoded_lengths varchar NOT NULL, -- encoded_lengths fields for the functionType  in contract
    dynamic_data varchar NOT NULL, -- dynamic_data fields for the functionType  in contract
    is_deleted boolean NOT NULL, -- is_deleted fields for the functionType  in contract
    block_number bigint NOT NULL, -- Block number uniquely identifying the block
    log_index bigint NOT NULL  -- Index of the log within the transaction
)
CREATE TABLE token_info_bitcoin ( block_timestamp.timestamp, block_number.bigint, tx_index.integer, tx_hash.text, tick.text, max_supply.decimal, lim.decimal, wlim.decimal, dec.integer, creator.text )
CREATE TABLE token_activities_avalanche (
    block_timestamp timestamp(3) NOT NULL, -- Timestamp of the block containing the inscription (matches block_timestamp in transactions table)
    block_number bigint NOT NULL, -- Block number containing the inscription (matches block_number in transactions table)
    tx_index integer NOT NULL, -- Index of the transaction containing the inscription (matches transaction_index in transactions table)
    tx_hash varchar(66) NOT NULL, -- Unique identifier of the transaction containing the inscription (matches hash in transactions table)
    log_index integer NOT NULL, -- Index of the log within the transaction
    type varchar(20) NOT NULL, -- Operation: Type of event (deploy, mint, transfer, list)
    tick varchar(255) NOT NULL, -- Ticker: Identifier of the inscription
    id varchar(255) NOT NULL, -- Unique identifier of the inscription
    amt decimal(38,0) NOT NULL, -- Amount to mint: States the amount of the inscription to operation. When operation is mint, has to be less or equal to "lim"
    from_address varchar(42) NOT NULL, -- Address sending the inscription
    to_address varchar(42) NOT NULL  -- Address receiving the inscription
)
CREATE TABLE token_balances_avalanche ( block_number bigint, block_timestamp timestamp, tick varchar, wallet_address varchar, total_supply decimal, amount decimal )


[User] For each chain, which centralized exchange holds the largest total USD value in their token balance as of the most recent snapshot?

[Assistant]
WITH latest_snapshot AS (
  SELECT MAX(snapshot_time) AS max_time FROM cex_token_balance
)
SELECT c.chain, c.exchange, SUM(c.usd_value) AS total_usd_value
FROM cex_token_balance c
JOIN latest_snapshot l ON c.snapshot_time = l.max_time
GROUP BY c.chain, c.exchange
QUALIFY ROW_NUMBER() OVER(PARTITION BY c.chain ORDER BY SUM(c.usd_value) DESC) = 1;

[User] Could you also include the number of distinct tokens each exchange holds in those chains?

[Assistant]
WITH latest_snapshot AS (
  SELECT MAX(snapshot_time) AS max_time FROM cex_token_balance
),
exchange_totals AS (
  SELECT c.chain, c.exchange, SUM(c.usd_value) AS total_usd_value, COUNT(DISTINCT c.token_symbol) AS token_count
  FROM cex_token_balance c
  JOIN latest_snapshot l ON c.snapshot_time = l.max_time
  GROUP BY c.chain, c.exchange
),
ranked_exchanges AS (
  SELECT *, ROW_NUMBER() OVER(PARTITION BY chain ORDER BY total_usd_value DESC) AS rn
  FROM exchange_totals
)
SELECT chain, exchange, total_usd_value, token_count
FROM ranked_exchanges
WHERE rn = 1;

[User] I got an error with the QUALIFY clause. Can you rewrite the query using a derived table or CTE instead?

[Assistant]
WITH latest_snapshot AS (
  SELECT MAX(snapshot_time) AS max_time FROM cex_token_balance
),
exchange_totals AS (
  SELECT c.chain, c.exchange, SUM(c.usd_value) AS total_usd_value, COUNT(DISTINCT c.token_symbol) AS token_count
  FROM cex_token_balance c
  JOIN latest_snapshot l ON c.snapshot_time = l.max_time
  GROUP BY c.chain, c.exchange
),
max_values AS (
  SELECT chain, MAX(total_usd_value) AS max_usd_value
  FROM exchange_totals
  GROUP BY chain
)
SELECT e.chain, e.exchange, e.total_usd_value, e.token_count
FROM exchange_totals e
JOIN max_values m ON e.chain = m.chain AND e.total_usd_value = m.max_usd_value;

[User] Now, only show exchanges where their usd_value is above $5,000,000.

[Assistant]
WITH latest_snapshot AS (
  SELECT MAX(snapshot_time) AS max_time FROM cex_token_balance
),
exchange_totals AS (
  SELECT c.chain, c.exchange, SUM(c.usd_value) AS total_usd_value, COUNT(DISTINCT c.token_symbol) AS token_count
  FROM cex_token_balance c
  JOIN latest_snapshot l ON c.snapshot_time = l.max_time
  GROUP BY c.chain, c.exchange
),
max_values AS (
  SELECT chain, MAX(total_usd_value) AS max_usd_value
  FROM exchange_totals
  GROUP BY chain
)
SELECT e.chain, e.exchange, e.total_usd_value, e.token_count
FROM exchange_totals e
JOIN max_values m ON e.chain = m.chain AND e.total_usd_value = m.max_usd_value
WHERE e.total_usd_value > 5000000;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE project_fundraising_record ( id character varying(32) NOT NULL,  -- fundraising record id project_id character varying(32) NOT NULL, -- the invested project's id project_name character varying(128) NOT NULL, -- name of the invested project rounds_name character varying(32), -- name of the fundraising round investment_value numeric(38,14), -- amount of the fundraising in USD investment_date character varying(128), -- the date of the investment happened introduction character varying(128), -- the introduction of the invested project valuation numeric(38,14), -- the valuation of the project in USD when invested )
CREATE TABLE token_basic_info ( coin_id character varying(100) NOT NULL, -- the id of the token token_name character varying(100) NOT NULL, -- the token's name token_symbol character varying(100) NOT NULL, -- the token's symbol token_address character varying(100) NOT NULL, -- the token's address chain text, -- the chain that the token resides price double precision, -- the current price of the token price_change_percentage_1h double precision, -- change in value divided by the absolute price value of the original token price in 1 hour price_change_percentage_24h double precision, -- change in value divided by the absolute price value of the original token price in 24 hours price_change_percentage_7d double precision, -- change in value divided by the absolute price value of the original token price in 7 days highest_price_24h double precision, -- the highest price of the token in 24 hours lowest_price_24h double precision,  -- the lowest price of the token in 24 hours market_cap double precision, -- the market cap of the token market_cap_rank bigint, -- the rank of the token market cap in desc market_cap_change_percentage_24h text, -- the percentage of market cap changes in 24 hours total_volume text, -- the trade volum of the token both in decentralized exchange(DEX) and centralized exchange(CEX) narrative text, -- the category or narrative of the token trend_rank biging, -- the trending rank of the token, value 1 expresses the most popular token. ,PRIMARY KEY (coin_id, chain) )
CREATE TABLE narrative_info ( narrative.text, top_3_coins.text, price_change_percentage_1h.numeric, price_change_percentage_24h.numeric, price_change_percentage_7d.numeric, market_cap.numeric, volume_24h.numeric, trend_rank.numeric, token_num.numeric )
CREATE TABLE cex_token_balance ( snapshot_time character varying(32) NOT NULL,  -- the snapshot time of record, converted from original timestamp chain character varying(128) NOT NULL, -- the chain that the token resides address character varying(128) NOT NULL, -- the address that holds the assets, owned by a CEX exchange character varying(512) NOT NULL, -- a centralized exchange name token_address character varying(128) NOT NULL, -- token contract address token_symbol character varying(512), --token symbol balance numeric(38,10), -- token balance usd_value numeric(38,14), -- value of the token held in USD price double precision, --price of the token in USD ,PRIMARY KEY (snapshot_time, exchange, address, chain, token_address) )
CREATE TABLE smart_money_profit ( address text, rank numeric, profit numeric, roi numeric, realized_ratio numeric, most_profit_token text, last_trade_time text, chain text )


[User] Show me the name and type for all the locations.

[Assistant] SELECT name, type FROM transportation.locations

[User] Now, filter this list to only include locations whose type is either 'Distribution Center' or 'Warehouse'.

[Assistant] SELECT name, type FROM transportation.locations WHERE type IN ('Distribution Center', 'Warehouse')

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE transportation.locations ( location_id.text, name.text, type.text, address_line1.text, city.text, state_province.text, postal_code.text, country.text, latitude.numeric, longitude.numeric, timezone.text )


[User] List all customers who have two policies with overlapping coverage periods and show both policy numbers along with the overlap start and end dates.

[Assistant] SELECT p1.customer_id, p1.policy_number AS policy_number1, p2.policy_number AS policy_number2, GREATEST(p1.start_date, p2.start_date) AS overlap_start, LEAST(p1.end_date, p2.end_date) AS overlap_end FROM insurance.policies p1 JOIN insurance.policies p2 ON p1.customer_id = p2.customer_id AND p1.policy_id < p2.policy_id WHERE p1.start_date <= p2.end_date AND p2.start_date <= p1.end_date;

[User] Actually, I only want overlapping policies where both policies are currently active.

[Assistant] SELECT p1.customer_id, p1.policy_number AS policy_number1, p2.policy_number AS policy_number2, GREATEST(p1.start_date, p2.start_date) AS overlap_start, LEAST(p1.end_date, p2.end_date) AS overlap_end FROM insurance.policies p1 JOIN insurance.policies p2 ON p1.customer_id = p2.customer_id AND p1.policy_id < p2.policy_id WHERE p1.status = 'active' AND p2.status = 'active' AND p1.start_date <= p2.end_date AND p2.start_date <= p1.end_date;

[User] Also include the number of days of overlap as overlap_days.

[Assistant] SELECT p1.customer_id, p1.policy_number AS policy_number1, p2.policy_number AS policy_number2, GREATEST(p1.start_date, p2.start_date) AS overlap_start, LEAST(p1.end_date, p2.end_date) AS overlap_end, (LEAST(p1.end_date, p2.end_date) - GREATEST(p1.start_date, p2.start_date)) AS overlap_days FROM insurance.policies p1 JOIN insurance.policies p2 ON p1.customer_id = p2.customer_id AND p1.policy_id < p2.policy_id WHERE p1.status = 'active' AND p2.status = 'active' AND p1.start_date <= p2.end_date AND p2.start_date <= p1.end_date;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE insurance.policies ( policy_id text, customer_id text, product_id text, agent_id text, policy_number text, start_date date, end_date date, premium_amount numeric, coverage_limit numeric, deductible numeric, status text, issued_at timestamp, cancellation_date date, cancellation_reason text )


[User] I want to list all insurance plans along with the number of medical records that have a record_date in 2024. Display plan_id, plan_name, and the total medical records.

[Assistant]
SELECT ip.plan_id, ip.plan_name, COUNT(mr.record_id) AS total_medical_records
FROM healthcare.insurance_plans ip
LEFT JOIN healthcare.medical_records mr ON 1=0 -- there is no direct relationship in schema, so no records will be counted
WHERE mr.record_date >= '2024-01-01' AND mr.record_date < '2025-01-01'
GROUP BY ip.plan_id, ip.plan_name;

[User] Since there's no direct relationship, can you adjust it to just show all insurance plans of type 'EPO' with their plan_id and plan_name?

[Assistant]
SELECT plan_id, plan_name
FROM healthcare.insurance_plans
WHERE plan_type = 'EPO';

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE healthcare.medical_records (
    record_id character varying(64) NOT NULL,  -- unique identifier for the medical record entry
    patient_id character varying(64) NOT NULL, -- FK to patients table
    appointment_id character varying(64) UNIQUE, -- FK to appointments table (can be null if record not tied to specific appt)
    doctor_id character varying(64) NOT NULL, -- FK to doctors table (doctor creating the record)
    record_date timestamp with time zone NOT NULL, -- date the record/observation was made
    chief_complaint text, -- patient's primary reason for visit
    present_illness_history text, -- detailed history of the current issue
    past_medical_history text, -- relevant past conditions/surgeries
    physical_examination_notes text, -- findings from the physical exam
    assessment text, -- doctor's assessment/diagnosis summary
    treatment_plan text, -- planned course of action
    vitals jsonb, -- store vitals like BP, HR, Temp as structured JSON
    created_at timestamp with time zone NOT NULL DEFAULT current_timestamp,
    PRIMARY KEY (record_id)
)
CREATE TABLE healthcare.insurance_plans ( plan_id text, plan_name text, insurance_provider text, plan_type text, contact_phone text, website text )


[User] Show me the notification ID, recipient user ID, and notification type for notifications received by users that user 'user123' is following.

[Assistant] SELECT n.notification_id, n.recipient_user_id, n.notification_type FROM social_media.notifications AS n JOIN social_media.follows AS f ON n.recipient_user_id = f.following_user_id WHERE f.follower_user_id = 'user123';

[User] Filter this list to only include notifications created after '2024-06-01' and also show the notification creation time.

[Assistant] SELECT n.notification_id, n.recipient_user_id, n.notification_type, n.created_at FROM social_media.notifications AS n JOIN social_media.follows AS f ON n.recipient_user_id = f.following_user_id WHERE f.follower_user_id = 'user123' AND n.created_at >= '2024-06-01';

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE social_media.comments ( comment_id.text, post_id.text, user_id.text, parent_comment_id.text, content.text, created_at.timestamp, updated_at.timestamp )
CREATE TABLE social_media.follows ( follow_id.text, follower_user_id.text, following_user_id.text, created_at.timestamp )
CREATE TABLE social_media.conversations ( conversation_id.text, created_at.timestamp, last_message_at.timestamp, is_group_chat.boolean, group_name.text )
CREATE TABLE social_media.notifications ( notification_id.text, recipient_user_id.text, sender_user_id.text, notification_type.text, target_entity_id.text, target_entity_type.text, created_at.timestamp, read_at.timestamp )


[User] 能否帮我查询特定路线(route_id 为 'RT001')的所有行程信息，并关联到乘客的联系方式？

[Assistant]
SELECT s.schedule_id, s.train_id, s.route_id, s.departure_datetime, s.arrival_datetime, s.status, p.passenger_id, p.first_name, p.last_name, p.phone_number, p.email
FROM schedules s
LEFT JOIN passengers p ON s.schedule_id = (SELECT schedule_id FROM bookings WHERE passenger_id = p.passenger_id)
WHERE s.route_id = 'RT001';

[User] 能否只显示状态为‘On Time’的行程，并按出发时间升序排列？

[Assistant]
SELECT s.schedule_id, s.train_id, s.route_id, s.departure_datetime, s.arrival_datetime, s.status, p.passenger_id, p.first_name, p.last_name, p.phone_number, p.email
FROM schedules s
LEFT JOIN passengers p ON s.schedule_id = (SELECT schedule_id FROM bookings WHERE passenger_id = p.passenger_id)
WHERE s.route_id = 'RT001' AND s.status = 'On Time'
ORDER BY s.departure_datetime ASC;

[User] 如果乘客信息为空，能否仍然显示行程信息，并限制结果前10条？

[Assistant]
SELECT s.schedule_id, s.train_id, s.route_id, s.departure_datetime, s.arrival_datetime, s.status, p.passenger_id, p.first_name, p.last_name, p.phone_number, p.email
FROM schedules s
LEFT JOIN passengers p ON s.schedule_id = (SELECT schedule_id FROM bookings WHERE passenger_id = p.passenger_id)
WHERE s.route_id = 'RT001' AND s.status = 'On Time'
ORDER BY s.departure_datetime ASC
LIMIT 10;

System:
You are an expert in writing database language. You can write a corresponding database language query to answer the user's question based on the table structure described by the table creation statement.
##Table Structure
// PUT /schedules
{
  "mappings": {
    "properties": {
      "schedule_id": { "type": "keyword" },
      "train_id": { "type": "keyword" }, // References trains index
      "route_id": { "type": "keyword" }, // References routes index
      "departure_datetime": { "type": "date" }, // ISO 8601 format recommended
      "arrival_datetime": { "type": "date" },
      "status": { "type": "keyword" },
      "notes": { "type": "text" }
    }
  }
}
// PUT /passengers
{
  "mappings": {
    "properties": {
      "passenger_id": { "type": "keyword" },
      "first_name": {
        "type": "text",
        "fields": { "keyword": { "type": "keyword", "ignore_above": 100 } }
      },
      "last_name": {
        "type": "text",
        "fields": { "keyword": { "type": "keyword", "ignore_above": 100 } }
       },
      "email": { "type": "keyword" }, // Often used for exact matches
      "phone_number": { "type": "keyword" },
      "date_of_birth": { "type": "date", "format": "yyyy-MM-dd" },
      "loyalty_program_id": { "type": "keyword" },
      "created_at": { "type": "date" }
    }
  }
}


[User] What is the average daily trading volume for each security_id in the market_data table from the last 30 days?

[Assistant] SELECT security_id, AVG(volume) as avg_daily_volume FROM financial_services.market_data WHERE data_timestamp >= CURRENT_DATE - INTERVAL '30 days' GROUP BY security_id;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE financial_services.accounts ( account_id text, customer_id text, account_number text, account_type text, balance numeric, currency text, opened_date date, status text, interest_rate numeric, last_updated_at timestamp )
CREATE TABLE financial_services.securities ( security_id.text, ticker_symbol.text, isin_code.text, cusip_code.text, security_name.text, security_type.text, exchange.text, currency.text, issuer_name.text, sector.text, last_updated.timestamp )
CREATE TABLE financial_services.trades ( trade_id text, account_id text, security_id text, order_id text, trade_type text, quantity numeric, price_per_unit numeric, total_amount numeric, commission numeric, trade_timestamp timestamp, settlement_date date, status text, execution_venue text )
CREATE TABLE financial_services.market_data ( data_point_id.bigint, security_id.text, data_timestamp.timestamp, open_price.numeric, high_price.numeric, low_price.numeric, close_price.numeric, adjusted_close_price.numeric, volume.bigint, source.text )
CREATE TABLE financial_services.employees ( employee_id text, first_name text, last_name text, job_title text, department text, branch_id text, email text, phone_extension text, hire_date date, termination_date date, manager_id text, status text )


[User] List all vehicles that use diesel fuel, showing their make, model, and year.

[Assistant] SELECT make, model, year FROM transportation.vehicles WHERE fuel_type = 'diesel';

[User] Now include only vehicles acquired in the last 5 years.

[Assistant] SELECT make, model, year FROM transportation.vehicles WHERE fuel_type = 'diesel' AND acquisition_date >= CURRENT_DATE - INTERVAL '5 years';

[User] Can you also show their status and order the results by year in descending order?

[Assistant] SELECT make, model, year, status FROM transportation.vehicles WHERE fuel_type = 'diesel' AND acquisition_date >= CURRENT_DATE - INTERVAL '5 years' ORDER BY year DESC;

[User] Actually, I only want to see active vehicles in this list.

[Assistant] SELECT make, model, year, status FROM transportation.vehicles WHERE fuel_type = 'diesel' AND acquisition_date >= CURRENT_DATE - INTERVAL '5 years' AND status = 'active' ORDER BY year DESC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE transportation.vehicles ( vehicle_id text PRIMARY KEY, license_plate text, vin text, make text, model text, year int, type text, capacity int, fuel_type text, status text, depot_id text, acquisition_date date )


[User] List the transaction IDs and gas used for transactions where gas used is greater than 500000.

[Assistant] SELECT transaction_id, gas_used FROM web3.transactions WHERE gas_used > 500000;

[User] Order the results by gas used in descending order.

[Assistant] SELECT transaction_id, gas_used FROM web3.transactions WHERE gas_used > 500000 ORDER BY gas_used DESC;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE web3.contracts ( contract_id character varying(64) NOT NULL, address character varying(128) NOT NULL, abi text NOT NULL, bytecode text NOT NULL, deployer_address character varying(128) NOT NULL, deployed_at timestamp NOT NULL, network_id character varying(64) NOT NULL, status character varying(32) NOT NULL, PRIMARY KEY (contract_id) )
CREATE TABLE web3.transactions ( transaction_id character varying(64) NOT NULL, from_address character varying(128) NOT NULL, to_address character varying(128), value numeric(38,14) NOT NULL, gas_used integer NOT NULL, gas_price numeric(38,14) NOT NULL, block_number integer NOT NULL, timestamp timestamp NOT NULL, input_data text, status character varying(32) NOT NULL, nonce integer NOT NULL, PRIMARY KEY (transaction_id) )
CREATE TABLE web3.users ( user_id text, username text, email text, password_hash text, created_at timestamp )


[User] List pairs of routes where the destination of one route matches the origin of another route.

[Assistant] SELECT r1.route_number AS route_1, r2.route_number AS route_2 FROM transportation.routes r1 JOIN transportation.routes r2 ON r1.destination_location_id = r2.origin_location_id;

[User] Now restrict to pairs where both routes are of type 'Intercity' and order by the first route_number.

[Assistant] SELECT r1.route_number AS route_1, r2.route_number AS route_2 FROM transportation.routes r1 JOIN transportation.routes r2 ON r1.destination_location_id = r2.origin_location_id WHERE r1.type = 'Intercity' AND r2.type = 'Intercity' ORDER BY r1.route_number;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE transportation.routes ( route_id text PRIMARY KEY, route_number text, description text, origin_location_id text, destination_location_id text, distance_km numeric, estimated_duration_minutes int, type text )


[User] List all accounts for customers who have at least one account with a balance over 10000 and another account with a balance under 1000. Show customer_id, account_id, account_type, balance, and currency.

[Assistant] SELECT account_id ,  customer_id ,  account_type ,  balance ,  currency FROM financial_services.accounts WHERE customer_id IN ( SELECT T1.customer_id FROM financial_services.accounts AS T1 JOIN financial_services.accounts AS T2 ON T1.customer_id  =  T2.customer_id WHERE T1.balance  >  10000 AND T2.balance  <  1000 )

[User] Actually, I only want to see the accounts that meet the specific balance criteria (over 10k or under 1k), not all accounts for those customers. And only include accounts where the status is 'Open'.

[Assistant] SELECT account_id ,  customer_id ,  account_type ,  balance ,  currency FROM financial_services.accounts WHERE customer_id IN ( SELECT T1.customer_id FROM financial_services.accounts AS T1 JOIN financial_services.accounts AS T2 ON T1.customer_id  =  T2.customer_id WHERE T1.balance  >  10000 AND T2.balance  <  1000 ) AND (balance  >  10000 OR balance  <  1000) AND status  =  'Open'

[User] Could you also include the opened_date and sort the results by customer_id, then by balance descending?

[Assistant] SELECT account_id ,  customer_id ,  account_type ,  balance ,  currency ,  opened_date FROM financial_services.accounts WHERE customer_id IN ( SELECT T1.customer_id FROM financial_services.accounts AS T1 JOIN financial_services.accounts AS T2 ON T1.customer_id  =  T2.customer_id WHERE T1.balance  >  10000 AND T2.balance  <  1000 ) AND (balance  >  10000 OR balance  <  1000) AND status  =  'Open' ORDER BY customer_id ASC ,  balance DESC

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE financial_services.accounts ( account_id text, customer_id text, account_number text, account_type text, balance numeric, currency text, opened_date date, status text, interest_rate numeric, last_updated_at timestamp )


[User] What is the performance review score for employee with ID 'EMP456' for the last quarter?

[Assistant] I'm sorry, but I can't assist with information about performance review scores as this data is not included in the employees table.

System:
You are an SQL statement expert and you can refuse the user's question if the question is not related to the table structure. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE manufacturing.employees ( employee_id character varying(64) NOT NULL, first_name character varying(100) NOT NULL, last_name character varying(100) NOT NULL, job_title character varying(128) NOT NULL, skill_certifications text, hire_date date NOT NULL, assigned_line_id character varying(64), employment_status character varying(50) NOT NULL, supervisor_employee_id character varying(64), PRIMARY KEY (employee_id) )


[User] Show a list of all wallet addresses along with the user_id who owns them, sorted by the wallet creation time.

[Assistant] SELECT user_id, address FROM web3.wallets ORDER BY created_at;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE web3.wallets (
    wallet_id character varying(64) NOT NULL,  -- unique identifier for the wallet
    user_id character varying(64) NOT NULL, -- identifier of the user owning the wallet
    address character varying(128) NOT NULL, -- address of the wallet
    private_key text NOT NULL, -- private key of the wallet
    created_at timestamp NOT NULL, -- time when the wallet was created
    PRIMARY KEY (wallet_id)
)


[User] Show me all room types with a base rate over $200 and max occupancy of at least 4, along with their property IDs and amenities.

[Assistant] SELECT room_type_id, property_id, amenities FROM hospitality_technology.room_types WHERE base_rate > 200 AND max_occupancy >= 4;

[User] Now, join this with the service_orders table to show only room types that have at least 5 service orders.

[Assistant] SELECT rt.room_type_id, rt.property_id, rt.amenities FROM hospitality_technology.room_types rt JOIN hospitality_technology.service_orders so ON rt.property_id = so.property_id WHERE rt.base_rate > 200 AND rt.max_occupancy >= 4 GROUP BY rt.room_type_id, rt.property_id, rt.amenities HAVING COUNT(so.order_id) >= 5;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE hospitality_technology.room_types ( room_type_id text PRIMARY KEY, property_id text, type_name text, description text, base_rate numeric, max_occupancy int, bed_type text, area_sqft numeric, amenities text )
CREATE TABLE hospitality_technology.service_orders ( order_id text PRIMARY KEY, reservation_id text, guest_id text, service_id text, staff_id_ordered text, staff_id_delivered text, order_timestamp timestamp, delivery_timestamp timestamp, quantity int, unit_price numeric, total_price numeric, status text, notes text, bill_id text )


[User] For each asset, I want to know how many orders have the status 'filled', showing the asset symbol.

[Assistant]
SELECT m.value AS asset_symbol,
       COUNT(*) AS filled_order_count
FROM trading_platform.orders o
JOIN trading_platform.metadata m
  ON o.asset_id = m.asset_id
 AND m.key = 'symbol'
WHERE o.status = 'filled'
GROUP BY m.value;

[User] Include assets that have zero filled orders, showing filled_order_count as 0.

[Assistant]
WITH asset_symbols AS (
  SELECT DISTINCT asset_id,
         value AS asset_symbol
  FROM trading_platform.metadata
  WHERE key = 'symbol'
)
SELECT a.asset_symbol,
       COALESCE(f.filled_order_count, 0) AS filled_order_count
FROM asset_symbols a
LEFT JOIN (
  SELECT asset_id,
         COUNT(*) AS filled_order_count
  FROM trading_platform.orders
  WHERE status = 'filled'
  GROUP BY asset_id
) f
  ON a.asset_id = f.asset_id;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE trading_platform.users (
    user_id character varying(64) NOT NULL,  -- unique identifier for the user
    username character varying(128) NOT NULL, -- username of the user
    email character varying(128) NOT NULL, -- email address of the user
    password_hash text NOT NULL, -- hashed password of the user
    created_at timestamp NOT NULL, -- time when the user account was created
    PRIMARY KEY (user_id)
)
CREATE TABLE trading_platform.orders (
    order_id character varying(64) NOT NULL,  -- unique identifier for the order
    user_id character varying(64) NOT NULL, -- identifier of the user placing the order
    wallet_id character varying(64) NOT NULL, -- identifier of the wallet used for the order
    asset_id character varying(64) NOT NULL, -- identifier of the asset being traded
    order_type character varying(32) NOT NULL, -- type of the order (e.g., buy, sell)
    quantity numeric(38,14) NOT NULL, -- quantity of the asset in the order
    price numeric(38,14) NOT NULL, -- price per unit of the asset
    status character varying(32) NOT NULL, -- status of the order (e.g., open, filled, canceled)
    created_at timestamp NOT NULL, -- time when the order was created
    PRIMARY KEY (order_id)
)
CREATE TABLE trading_platform.dapps (
    dapp_id character varying(64) NOT NULL,  -- unique identifier for the DApp
    name character varying(128) NOT NULL, -- name of the DApp
    description text NOT NULL, -- description of the DApp
    url character varying(256) NOT NULL, -- URL of the DApp
    PRIMARY KEY (dapp_id)
)
CREATE TABLE trading_platform.peers (
    peer_id character varying(64) NOT NULL,  -- unique identifier for the peer
    ip_address character varying(15) NOT NULL, -- IP address of the peer
    port integer NOT NULL, -- port number of the peer
    last_seen timestamp NOT NULL, -- last time the peer was active
    PRIMARY KEY (peer_id)
)
CREATE TABLE trading_platform.metadata (
    metadata_id character varying(64) NOT NULL,  -- unique identifier for the metadata
    asset_id character varying(64) NOT NULL, -- identifier of the asset the metadata is associated with
    key character varying(128) NOT NULL, -- key of the metadata
    value text NOT NULL, -- value of the metadata
    PRIMARY KEY (metadata_id)
)
CREATE TABLE trading_platform.logs (
    log_id character varying(64) NOT NULL,  -- unique identifier for the log entry
    user_id character varying(64), -- identifier of the user associated with the log entry
    action character varying(128) NOT NULL, -- action performed
    details text NOT NULL, -- details of the action
    logged_at timestamp NOT NULL, -- time when the log entry was created
    PRIMARY KEY (log_id)
)


[User] List the top 3 tokens by net flow on the Binance chain, including their symbol and average cost.

[Assistant] SELECT token_symbol, net_flow, avg_cost FROM smart_money_token_performance WHERE chain = 'Binance' ORDER BY net_flow DESC LIMIT 3;

[User] Actually, I want to see tokens with a positive net flow and ROI above 20%.

[Assistant] SELECT token_symbol, net_flow, avg_cost FROM smart_money_token_performance WHERE chain = 'Binance' AND net_flow > 0 AND roi > 20 ORDER BY net_flow DESC LIMIT 3;

[User] Can you also include the current price and order by ROI instead?

[Assistant] SELECT token_symbol, net_flow, avg_cost, price FROM smart_money_token_performance WHERE chain = 'Binance' AND net_flow > 0 AND roi > 20 ORDER BY roi DESC LIMIT 3;

[User] Now filter these results to only include tokens with a price above $1.

[Assistant] SELECT token_symbol, net_flow, avg_cost, price FROM smart_money_token_performance WHERE chain = 'Binance' AND net_flow > 0 AND roi > 20 AND price > 1 ORDER BY roi DESC LIMIT 3;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE smart_money_token_performance ( token_address character varying(100) NOT NULL, -- the token's address token_symbol character varying(100), -- the tokens's symbol pnl numeric(38,2), -- the profit users made on this token net_flow numeric(38,2), -- the netflow of the token, means the money user spent minus the the money user sold of this token avg_cost numeric(38,16), -- the average cost price of user spent on this token price double precision, -- the current price of the token realized_ratio numeric(10,2), -- the ratio user sold of the token roi numeric(10,2), -- the roi users made of this token chain character varying(100), -- the chain that the token resides PRIMARY KEY (token_address, chain) )


[User] Count the number of policies issued in each calendar year, and show the year and the count.

[Assistant] SELECT EXTRACT(YEAR FROM issued_at), COUNT(*) FROM insurance.policies WHERE issued_at IS NOT NULL GROUP BY 1 ORDER BY 1;

System:
You are an SQL statement expert. Given the table structure described by the CREATE TABLE statement, write an SQL query that provides the solution to the user's question.
##Table Structure
CREATE TABLE insurance.customers ( customer_id text, first_name text, last_name text, date_of_birth date, ssn_hash text, address_line1 text, address_line2 text, city text, state text, zip_code text, country text, phone_number text, email text, created_at timestamp, updated_at timestamp, status text )
CREATE TABLE insurance.policies ( policy_id text, customer_id text, product_id text, agent_id text, policy_number text, start_date date, end_date date, premium_amount numeric, coverage_limit numeric, deductible numeric, status text, issued_at timestamp, cancellation_date date, cancellation_reason text )
CREATE TABLE insurance.insurance_products ( product_id text, product_name text, product_type text, description text, base_premium numeric, coverage_details text, underwriting_rules text, is_active boolean, created_at timestamp, updated_at timestamp )
CREATE TABLE insurance.agents ( agent_id text, first_name text, last_name text, agency_name text, license_number text, license_state text, contact_email text, contact_phone text, hire_date date, termination_date date, status text, commission_rate numeric, manager_id text )
CREATE TABLE insurance.policy_beneficiaries ( beneficiary_id text, policy_id text, customer_id text, first_name text, last_name text, relationship text, percentage_share numeric, contact_info text, added_at timestamp )