Moreover, they should avoid the complex forms of nested and correlated subqueries that make current SQL hard to master.

此外，他们应该避免复杂表格嵌套和相关的SQL语句，使目前难以掌握。

youdao

Moreover, they should avoid the complex forms of nested and correlated subqueries that make current SQL hard to master.

此外，他们应该避免复杂表格嵌套和相关的SQL语句，使目前难以掌握。

youdao