我有如下表格中的数据。
现在我想根据quantity列的值返回行。
像上面的数据行1有数量4,那么在select查询的输出中,行1将有4行,类似于行2,数量是8,那么将有8行。
当我在上面的数据上写查询时,它应该返回26行。
最佳答案
SELECT tbl.*
FROM tbl,
(SELECT number
FROM master..spt_values
WHERE Type = 'P') n
WHERE tbl.Quantity > n.number
结果:
| ROWNO | QUANTITY | SIZE |
|-------|----------|------|
| 1 | 4 | YXS |
| 1 | 4 | YXS |
| 1 | 4 | YXS |
| 1 | 4 | YXS |
| 2 | 8 | 2XL |
| 2 | 8 | 2XL |
| 2 | 8 | 2XL |
| 2 | 8 | 2XL |
| 2 | 8 | 2XL |
| 2 | 8 | 2XL |
| 2 | 8 | 2XL |
| 2 | 8 | 2XL |
| 3 | 7 | XL |
| 3 | 7 | XL |
| 3 | 7 | XL |
| 3 | 7 | XL |
| 3 | 7 | XL |
| 3 | 7 | XL |
| 3 | 7 | XL |
| 4 | 7 | YXS |
| 4 | 7 | YXS |
| 4 | 7 | YXS |
| 4 | 7 | YXS |
| 4 | 7 | YXS |
| 4 | 7 | YXS |
| 4 | 7 | YXS |