mysql update 报错

> 问题描述

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 Editor and reconnect.    0.000 sec

> 软件：Mysql Workbench

```

update table set type=type*3 where type<10

```

原因：where 条件中应包含主键。