问题详情

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 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 an INSERT statement to insert multiple rows at a time.

时间:2022-05-21 00:18 关键词: 1Z0-007

答案解析

D | F