Task: 021
Database: retails
Question
Find customers with high purchase quantities.
Gold Query
SELECT c.c_custkey, c.c_name, SUM(l.l_quantity) as total_quantity
FROM customer c
JOIN orders o ON c.c_custkey = o.o_custkey
JOIN lineitem l ON o.o_orderkey = l.l_orderkey
GROUP BY c.c_custkey, c.c_name
HAVING SUM(l.l_quantity) >= :quantity_threshold
ORDER BY total_quantity DESC;
Execution Result:
| c_custkey | c_name | total_quantity |
|---|---|---|
| 68513 | Customer#000068513 | 3779 |
| 114308 | Customer#000114308 | 3612 |
| 58421 | Customer#000058421 | 3605 |
| 147472 | Customer#000147472 | 3544 |
| 48853 | Customer#000048853 | 3535 |
| 25862 | Customer#000025862 | 3533 |
| 44167 | Customer#000044167 | 3526 |
| 84203 | Customer#000084203 | 3520 |
| 108451 | Customer#000108451 | 3486 |
| 12581 | Customer#000012581 | 3470 |
| ... | ... | ... |
| 12931 | Customer#000012931 | 2802 |
| 17203 | Customer#000017203 | 2802 |
| 104228 | Customer#000104228 | 2802 |
| 10780 | Customer#000010780 | 2801 |
| 14912 | Customer#000014912 | 2801 |
| 78145 | Customer#000078145 | 2801 |
| 2648 | Customer#000002648 | 2800 |
| 22985 | Customer#000022985 | 2800 |
| 39151 | Customer#000039151 | 2800 |
| 102176 | Customer#000102176 | 2800 |
... truncated (351 rows total)