秒懂sql intersect

所以intersect表示相交的意思。

1 select F_Name from T_industriesM
2 intersect
3 select F_Name from T_Industries

表示的内容：

1 select A.F_Name from (select distinct F_Name from T_industriesM) A inner join 
2 (select distinct F_Name from  T_Industries) B on A.F_Name=B.F_Name

这两个代码是相等的：

秒懂sql intersect

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