A subquery is a query that appears inside another query statement. Subqueries are also referred to as sub- SELECT s or nested SELECT s. The full SELECT syntax is valid in subqueries.
What is subquery explain with example?
Subqueries can be used with SELECT, UPDATE, INSERT, DELETE statements along with expression operator. It could be equality operator or comparison operator such as =, >, =, <= and Like operator. A subquery is a query within another query. The outer query is called as main query and inner query is called as subquery.
What is subquery in SQL?
A subquery is a query that is nested inside a SELECT , INSERT , UPDATE , or DELETE statement, or inside another subquery.
What is a subquery describe its types?
They help us target specific rows to perform various operations in SQL. They are used to SELECT, UPDATE, INSERT and DELETE records in SQL. There are different types of SQL subquery, like Single-row subquery, multiple row subquery, multiple column subquery, correlated subquery, and nested subquery.
What is subquery explain with example?
Subqueries can be used with SELECT, UPDATE, INSERT, DELETE statements along with expression operator. It could be equality operator or comparison operator such as =, >, =, <= and Like operator. A subquery is a query within another query. The outer query is called as main query and inner query is called as subquery.
