› MySQL 5.5 Community Server
› MySQL 5.6 Community Server
› Percona Configuration Wizard
› XtraBackup 搭建主从复制
Great Sites on MySQL
› Percona
› MySQL Performance Blog
› Severalnines
推荐管理工具
› Sequel Pro
› phpMyAdmin
推荐书目
› MySQL Cookbook
MySQL 相关项目
› MariaDB
› Drizzle
参考文档
› http://mysql-python.sourceforge.net/MySQLdb.html
MySQL 相关项目
› MariaDB
› Drizzle
参考文档
› http://mysql-python.sourceforge.net/MySQLdb.html
这是一个创建于 1797 天前的主题，其中的信息可能已经有所发展或是发生改变。
```
... 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
 |
1
0x663 2019-12-27 23:17:41 +08:00
IN (1,SELECT `id` FROM `member` WHERE `friendsid` = ( SELECT `id` FROM `member` WHERE `id` = '1' ))
|
|
2
0x663 2019-12-27 23:25:06 +08:00
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 ) ``` |
 |
3
kukala OP @liushaokang 感谢回复！原来用 union 就行了
|
Select Language