Important Points About MySQL EXISTS Operator

EXISTS Operator in MySQL

EXISTS operator is used in MySQL to test for the existence of any record in a subquery....

Syntax

EXISTS syntax in MySQL is given below:...

MYSQL EXISTS Operator Examples

To understand how to use EXISTS Operator in MySQL, let’s look at some examples of EXISTS in MySQL. We will demonstrate a completely practical example from the first step to the end. Follow each step, to use MySQL EXISTS....

MySQL EXISTS Operator Vs. IN Operator

Although both IN operator and EXISTS operator seems to perform similar types of tasks, there is vast difference between their implementation and uses. Let’s see how they are different from each other....

Important Points About MySQL EXISTS Operator

Exists Operator works with a parent query and its corresponding subquery. Data of parent query is only displayed when subquery return any value. This operator return boolean values i.e. either TRUE or FALSE. Although it can show some resemblance with IN operator, these two operator has vast difference when it comes to implementation. EXISTS query is found efficient when dealing with large datasets....