mysql 报错:Error Code: 1175. You are using safe update mode and you tried to update a table without a
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#事故现场
mysql执行update操作报错:
- sql如下:
update psmp.Users set name='Jack' where name='Lily';
- 报错如下:
Error Code: 1175. You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column. To disable safe mode, toggle the option in Preferences
- 分析
这是因为MySql运行在safe-updates
模式下,该模式会导致非主键条件下无法执行update
或者delete
命令。
可以通过以下SQL进行状态查询:
show variables like 'SQL_SAFE_UPDATES';
#解决方法
- 执行下面的sql,关闭
safe-updates
模式:
SET SQL_SAFE_UPDATES = 0;
或
SET SQL_SAFE_UPDATES = false;
- 执行下面的sql,打开
safe-updates
模式:
SET SQL_SAFE_UPDATES = 1;
或
SET SQL_SAFE_UPDATES = true;
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