Task: 004
Database: retails
Question
Find all customers with high account balances and list their number of priority orders.
Gold Query
WITH high_balance_customers AS (
SELECT c_custkey, c_name, c_acctbal
FROM customer
WHERE c_acctbal > :account_balance_threshold
)
SELECT c.c_custkey,
c.c_name,
c.c_acctbal,
COUNT(CASE WHEN o.o_orderpriority IN ('1-URGENT') THEN o.o_orderkey END) AS num_priority_order
FROM high_balance_customers c
LEFT JOIN orders o ON c.c_custkey = o.o_custkey
GROUP BY c.c_custkey, c.c_name
ORDER BY c.c_acctbal DESC;
Execution Result:
| c_custkey | c_name | c_acctbal | num_priority_order |
|---|---|---|---|
| 14740 | Customer#000014740 | 9999.96 | 2 |
| 118127 | Customer#000118127 | 9999.94 | 3 |
| 48616 | Customer#000048616 | 9999.84 | 3 |
| 75730 | Customer#000075730 | 9999.8 | 2 |
| 73836 | Customer#000073836 | 9999.75 | 0 |
| 72823 | Customer#000072823 | 9999.65 | 5 |
| 122154 | Customer#000122154 | 9999.6 | 0 |
| 330 | Customer#000000330 | 9999.59 | 0 |
| 97961 | Customer#000097961 | 9999.56 | 2 |
| 7986 | Customer#000007986 | 9999.53 | 0 |
| ... | ... | ... | ... |
| 37004 | Customer#000037004 | 9990.8 | 4 |
| 119550 | Customer#000119550 | 9990.75 | 0 |
| 64857 | Customer#000064857 | 9990.71 | 0 |
| 88466 | Customer#000088466 | 9990.57 | 2 |
| 48997 | Customer#000048997 | 9990.54 | 5 |
| 70545 | Customer#000070545 | 9990.36 | 0 |
| 58141 | Customer#000058141 | 9990.3 | 3 |
| 104991 | Customer#000104991 | 9990.27 | 0 |
| 43643 | Customer#000043643 | 9990.11 | 1 |
| 101724 | Customer#000101724 | 9990.08 | 0 |
... truncated (155 rows total)