It's not particularly efficient if you have relations between tables in your schema, which you most likely do.

如果您的架构中的表间存在一些关系(这种可能性很大)，那么这个代码不是特别有效。

youdao

It's not particularly efficient if you have relations between tables in your schema, which you most likely do.

如果您的架构中的表间存在一些关系(这种可能性很大)，那么这个代码不是特别有效。

youdao