Category: Flow Function

The IF statement is used in stored programs that implement the basic conditional construct in MySQL. Based on a certain condition, it allows us to execute a set of SQL statements. It returns one of the three values True, False, or NULL. We can use this statement in three ways IF-THEN, IF-THEN-ELSE, IF-THEN-ELSEIF-ELSE clauses, and…

MySQL CASE expression is a part of the control flow function that provides us to write an if-else or if-then-else logic to a query. This expression can be used anywhere that uses a valid program or query, such as SELECT, WHERE, ORDER BY clause, etc. The CASE expression validates various conditions and returns the result when the…

This section helps you to learn about the MySQL NULLIF() function. The NULLIF function is a part of the MySQL control flow function that used for comparison in two expressions. It also helps in preventing the division by zero error in a SQL statement. The NULLIF function accepts two expressions, and if the first expression is equal…

This section helps you to learn about the MySQL IFNULL() function. The IFNULL function is a part of the MySQL control flow function used for handling NULL values. The IFNULL function accepts two expressions, and if the first expression is not null, it returns the first arguments. If the first expression is null, it returns the second…

In this section, we are going to learn how IF() function works in MySQL. The IF function is one of the parts of the MySQL control flow function, which returns a value based on the given conditions. In other words, the IF function is used for validating a function in MySQL. The IF function returns a value YES when the…