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参考文档
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This topic created in 2320 days ago, the information mentioned may be changed or developed.
```
... IN (SELECT `id` FROM `member` WHERE `friendsid` = ( SELECT `id` FROM `member` WHERE `id` = '1' ))...
```
这样的语句，出来的结果是 IN(2,3,4)
怎么把子查询最里面的 ID 为 1 的也添加到 IN 查询里去
比如 IN(1,2,3,4)这样
... IN (SELECT `id` FROM `member` WHERE `friendsid` = ( SELECT `id` FROM `member` WHERE `id` = '1' ))...
```
这样的语句，出来的结果是 IN(2,3,4)
怎么把子查询最里面的 ID 为 1 的也添加到 IN 查询里去
比如 IN(1,2,3,4)这样
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1
0x663 Dec 27, 2019
IN (1,SELECT `id` FROM `member` WHERE `friendsid` = ( SELECT `id` FROM `member` WHERE `id` = '1' ))
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2
0x663 Dec 27, 2019
上边是开玩笑的
```sql IN (1,SELECT `id` FROM `member` WHERE `friendsid` = ( SELECT `id` FROM `member` WHERE `id` = '1' ) union select 1 as id ) ``` |
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3
kukala OP @liushaokang 感谢回复！原来用 union 就行了
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