Also, column names can be inherited more easily from set operators such as UNION.

另外，可以更轻松地从集合操作符(比如union)继承列名称。

youdao

Also, column names can be inherited more easily from set operators such as UNION.

另外，可以更轻松地从集合操作符(比如union)继承列名称。

youdao