MySQL

In this tutorial, we will learn about the MySQL EXISTS Operator. The EXISTS operator checks whether a subquery returns any rows. If the subquery returns rows, the EXISTS

In this tutorial, we will learn steps to Convert Joins to Subqueries with an example. We can replace a join statement with a subquery. Sometimes its easy to construct

In this tutorial, we will learn steps to convert subquery to Join with a example. A MySQL subquery statement in many cases can be converted to a Join statement.

In this tutorial, we will learn about MySQL Subquery Placement. There are various types of subqueries in MySQL. The subquery’s usage is best described

In this tutorial, we will learn about Scalar Subquery with an example. Scalar subquery is the simplest form
of a subquery. A scalar subquery, as the name suggests

In this tutorial, we will learn about correlated subqueries with an example. MySQL correlated subquery contains subquery references in the outer query and cannot be evaluated independently.