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MySQL 的安全更新模式

发布时间:2013-10-30 11:38:42 所属栏目:MySql教程 来源:站长网
导读:删除mysql 的一个表的数据的时候报告如下错误: mysql delete from upload_images; ERROR 1175 (HY000): You are using safe update mode and you tried to upd
删除mysql 的一个表的数据的时候报告如下错误:

mysql> delete from upload_images;
ERROR 1175 (HY000): You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column


mysql> show variables like '%sql_safe%';
+------------------+-------+
| Variable_name | Value |
+------------------+-------+
| sql_safe_updates | ON |
+------------------+-------+
1 row in set (0.00 sec)

mysql> set sql_safe_updates=0;

Query OK, 0 rows affected (0.00 sec)

mysql> show variables like '%sql_safe%';
+------------------+-------+
| Variable_name | Value |
+------------------+-------+
| sql_safe_updates | OFF |
+------------------+-------+
1 row in set (0.00 sec)
mysql> delete from upload_images;
Query OK, 505 rows affected (0.01 sec)

然后再启用safe mode

mysql> set sql_safe_updates=1;

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