Can we SELECT multiple columns in subquery?

Can subquery have 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.

How do I SELECT multiple columns in SELECT query?

To select multiple columns from a table, simply separate the column names with commas! For example, this query selects two columns, name and birthdate , from the people table: SELECT name, birthdate FROM people; Sometimes, you may want to select all columns from a table.

What is multi column sub query?

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.

Can a subquery return multiple values?

Multiple-row subqueries are nested queries that can return more than one row of results to the parent query. Multiple-row subqueries are used most commonly in WHERE and HAVING clauses. Since it returns multiple rows, it must be handled by set comparison operators (IN, ALL, ANY).