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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.
参考答案
更多 “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.” 相关考题
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