The first thought might be to add a new column and use the GENERATED ALWAYS AS (...) syntax to populate and maintain it.

第一个想法可能是添加一个新的列，并使用GENERATED ALWAYS AS(…)语法来填充和维护它。

youdao

You can add a new column to the table by defining a new function.

通过定义新的函数，您可以向表添加新的列。

youdao

Add a new "State" column to the client data table, before policy.

在客户端数据表中策略的前面添加新的“ State ”列。

youdao