更新数据库中数据时出现: 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 问题
使用workbench在数据库中更新数据时报错: 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(错误及操作见截图)
1.sql: update tableName set employee_detailed_status='xx', employee_status_code='xx' where employee_detailed_status='xx'

2.通过错误提示可以看出: 当前数据库使用的是 safe update mode(安全更新模式),并且在update时where 中没有把主键当做条件。因为在该模式会导致非主键条件下无法执行update或者delete命令,因此会报错。
3.如何解决这个问题呢?
第一种方法:
执行命令SET SQL_SAFE_UPDATES = 0 来修改下数据库模式,这样再去执行update语句或者delete语句即可成功。
参考地址: https://jingyan.baidu.com/article/6c67b1d6f0efca2787bb1eba.html
第二种方法:
(1) 在workbench的菜单栏点击“edit-->Preferences”,然后会弹出对话框“workbench preferences”。

(2) 在“workbench”左边栏点击“SQL Editor”,会看到最后一行是“Safe Updates……”是打钩的,我们只要缺消打钩即可。
当缺消打钩之后,点击“OK”按钮,linux系统可能会出现“OK”按钮无法点击的情况,请在左边栏点击“General Editors”选项,这样就可以点击“OK”按钮了。

(3) 当上面设置好之后,请重启workbench。
参考地址: https://jingyan.baidu.com/article/6c67b1d6f0efca2787bb1eba.html
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