mysql怎么同时更新2个表

Question

想同时更新2个表，2表uid相同，修改a表name和b表nice，怎么破

Answer 1

mysql> select * from aa;
+------+
| id   |
+------+
|    2 |
+------+
1 row in set (0.00 sec)

mysql> select * from bb;
+------+
| id   |
+------+
|    2 |
+------+
1 row in set (0.00 sec)

mysql> update aa,bb set aa.id=3, bb.id=3 where aa.id=bb.id;
Query OK, 2 rows affected (0.02 sec)
Rows matched: 2  Changed: 2  Warnings: 0

mysql> select * from bb;
+------+
| id   |
+------+
|    3 |
+------+
1 row in set (0.00 sec)

mysql> select * from aa;
+------+
| id   |
+------+
|    3 |
+------+
1 row in set (0.00 sec)

Answer 2

如果需要强制同步操作，可以使用事务