您好，我需要查询方面的帮助。这是我的查询和表结构。
SELECT *
FROM products_description a, products b
where a.products_id=b.products_id
AND b.products_status >0
AND a.products_name LIKE '%".$q."%'
ORDER BY b.products_quantity DESC LIMIT 10
---------------------------------------------------
| products_id | products_name | products_quantity |
---------------------------------------------------
| 980 | SOS | 21 |
---------------------------------------------------
| 101 | GOLD | 9 |
---------------------------------------------------
| 232 | BALL | 1 |
---------------------------------------------------
| 422 | SONG | O |
---------------------------------------------------
| 371 | ALL | O |
---------------------------------------------------
| 72 | FISH | O |
---------------------------------------------------
我希望它能够按字母顺序排序(产品名称)，同时将数量为 0 的产品保留在底部。通常，我想要这样的结果:
---------------------------------------------------
| products_id | products_name | products_quantity |
---------------------------------------------------
| 980 | Ball | 1 |
---------------------------------------------------
| 101 | GOLD | 9 |
---------------------------------------------------
| 232 | SOS | 21 |
---------------------------------------------------
| 422 | All | O |
---------------------------------------------------
| 371 | FISH | O |
---------------------------------------------------
| 72 | SONG | O |
---------------------------------------------------
感谢任何帮助!
最佳答案
Select ...
From products_description a
Join products b
On a.products_id=b.products_id
Where b.products_status >0
And a.products_name LIKE '%".$q."%'
Order By Case When products_quantity = 0 Then 1 Else 0 End Asc
, a.products_name Asc
Limit 10
关于php - SQL 查询按组排序，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/5974086/