# Task: 013

**Database:** retails  

## Question
Show the total quantity and total final charge of all items shipped by mail or with discount greater than 5% and returned.


## Gold Query

```sql
SELECT
SUM(l_quantity) AS total_quantity,
SUM(l_extendedprice * (1 - l_discount) * (1 + l_tax)) AS total_charge
FROM lineitem
WHERE l_returnflag = 'R'
AND (l_shipmode = 'MAIL' OR l_discount > 0.05);
```

**Execution Result:**

|   total_quantity |   total_charge |
|------------------|----------------|
|          9357125 |  1.3533437e+10 |

*1 rows*