试题详情
多项选择题Which three statements are true regarding subqueries?()

A、Subqueries can contain GROUP BY and ORDER BY clauses 

B、Main query and subquery can get data from different tables 

C、Main query and subquery must get data from the same tables 

D、Subqueries can contain ORDER BY but not the GROUP BY clause 

E、Only one column or expression can be compared between the main query and subquery

F、 Multiple columns or expressions can be compared between the main query and subquery

  • A,B,E
  • 关注下方微信公众号,在线模考后查看

热门试题