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Which two statements about subqueries are true?()

发布日期:2020-04-10

Which two statements about subqueries are true?()
A

A single row subquery can retrieve data from only one table.

B

A SQL query statement cannot display data from table B that is referred to in its subquery, unless table B is included in the main query's FROM clause.

C

A SQL query statement can display data from table B that is referred to in its subquery, without including table B in its own FROM clause.

D

A single row subquery can retrieve data from more than one table.

E

A single row subquery cannot be used in a condition where the LIKE operator is used for comparison.

F

A multiple-row subquery cannot be used in a condition where the LIKE operator is used for comparison.

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