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Definition and Usage. The IF () function returns a value if a condition is TRUE, or another value if a condition is FALSE. Syntax. IF (condition, value_if_true, value_if_false) Parameter Values. Technical Details. More Examples. Example. Return 5 if the condition is TRUE, or 10 if the condition is FALSE: SELECT IF(500<1000, 5, 10);
IF(type = 'P', amount, amount * -1) as amount. FROM report. See https://dev.mysql.com/doc/refman/8.0/en/flow-control-functions.html. Additionally, you could handle when the condition is null. In the case of a null amount: SELECT id, IF(type = 'P', IFNULL(amount,0), IFNULL(amount,0) * -1) as amount. FROM report.
Summary: in this tutorial, you will learn how to use MySQL IF statement to execute a block of SQL code based on a specified condition. Note that MySQL has an IF() function that differs from the IF statement described in this tutorial.
1 cze 2022 · In this article, we will explain the diversities of MySQL IF function and MySQL IF statement and show their usage examples. Also, we will review other MySQL functions.
MySQL IF function Examples. Let’s practice with several examples to see how the MySQL IF function works. A simple IF function example. You can use the IF function directly in the SELECT statement without the FROM and other clauses as follows: SELECT IF (1 = 2, 'true', 'false'); -- false Code language: SQL (Structured Query Language) (sql) Try ...
6 cze 2024 · MySQL IF () function syntax is: IF (condition, true_value, false_value) Parameters: condition – It is used to specify the condition to be evaluated. true_value – It is an optional parameter that is used to specify the value to be returned if the condition evaluates to be true.
The syntax for the MySQL IF function is as follows: IF(condition, value_if_true, value_if_false) condition: The expression that evaluates to either true or false. value_if_true: The value to be returned if the condition is true. value_if_false: The value to be returned if the condition is false.
