This step requires a minimum of 3 tables to be joined (where the 3 tables can include self-joins).

这个步骤至少需要3个连接表(3个连接表中包含自连接)。

youdao

This step requires a minimum of 3 tables to be joined (where the 3 tables can include self-joins).

这个步骤至少需要3个连接表(3个连接表中包含自连接)。

youdao