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mysql if else example
mysql mysql 5 5 reference manual 13 6 5 2 if syntax the if statement can have then , else , and elseif clauses, and it is terminated with in this example, the inner if is evaluated only if n is not equal to m . mysql mysql 5 7 reference manual 12 4 control flow functions if there was no matching result value, the result after else is returned, or null if there is no in this example, the type of the test column is varbinary . mysql if this mysql tutorial explains how to use the if then else statement in mysql with syntax and examples. in mysql, the if then else statement is used to execute code when a condition is true, or execute different code if the condition evaluates to false. the following is example using how do write if else statement in a mysql query you probably want to use a case expression. they look like this select col , col , case when action and state then else end as sql id like a simple example of a mysql if, else, endif statement. mysql has insert on duplicate key update that allows you to update if mysql if statement this tutorial shows you how to use mysql if statement to execute a block of sql the following example illustrates how to use the if esleif else statement. example mysql if function in the following example the mysql statement returns the third expression mysql gt select if select case when gt then true else 4 2 conditional control however, if l version is null, then the else condition will always fire, multiple lines all of the if statements in example are treated identically by mysql. if statement with elseif and else if statement procedure if statement with elseif and else if statement procedure function sql mysql. mysql gt mysql gt delimiter mysql gt create procedure myproc normal price numeric , ,out related examples in the same category if statement in the first example program it was simply a case of if the parameter is a, run the code. there was no ability to run something else if it wasnt. two if statements