How do I SELECT multiple columns in SQL subquery?

How do I SELECT multiple columns in subquery?

If you want compare two or more columns. you must write a compound WHERE clause using logical operators Multiple-column subqueries enable you to combine duplicate WHERE conditions into a single WHERE clause.

Can SQL 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.

How do I SELECT multiple columns in SQL?

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 multiple column subquery in SQL?

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.