Can multiple row subquery return multiple columns?

Can subquery return multiple columns?

SQL: Multiple Column Subqueries You can write subqueries that return multiple columns. The following example retrieves the order amount with the lowest price, group by agent code.

Can a subquery return multiple tables?

A column subquery returns a single column of one or more values. A row subquery returns a single row of one or more values. A table subquery returns a table of one or more rows of one or more columns.

What is multi column subquery?

Multiple-column subqueries enable you to combine duplicate WHERE conditions into a single WHERE clause. Column comparisons in a multiple-column subquery can be pairwise comparisons or nonpairwise comparisons. You can use a subquery to define a table to be operated on by a containing query.

Which of the following is not true about multiple row subqueries?

Answer: C. Multi-row operators cannot be used in single-row sub-queries and vice versa.