Error Code: 1175.You are using safe update mode

今天使用Mysql的update語句時，發現執行不了。
提示信息：
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.

原因：是在safe mode下,要強制安全點,without a WHERE that uses a KEY column To disable safe mode
解決方法：
取消這個限制,執行:
SET SQL_SAFE_UPDATES=0;
即可！