题目内容

等值连接和自然连接的结果完全相同。( )

A. 对
B. 错

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在SELECT语句中,需要对分组情况满足的条件进行判断时,应该使用HAVING子句,而不是WHERE子句。( )

A. 对
B. 错

视图只能从基本表中导出,不能从视图中再导出表。

A. 对
B. 错

Cultural helps people of both countries to understand each other.

A. partner
B. exchange
C. barbecue
D. neighbour

She told me not to trust anyone who has a handshake.

A. firm
B. hard
C. limp
D. light