| # Task: 021 |
|
|
| **Database:** retails |
|
|
| ## Question |
| Find customers with high purchase quantities. |
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|
|
| ## Gold Query |
|
|
| ```sql |
| 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:** |
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|
| | 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)* |
