1 引言

当更新字段缺少where语句时，mysql会提示一下错误代码：

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 -> SQL Queries and reconnect. 0.000 sec

2 方案

SET SQL_SAFE_UPDATES = 0;

update 表名 set 字段1 = 字段2+1;

SET SQL_SAFE_UPDATES = 1;

3 总结

这篇文章仅作为记录使用。