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IF(type = 'P', amount, amount * -1) as amount. 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: IF(type = 'P', IFNULL(amount,0), IFNULL(amount,0) * -1) as amount.
10 mar 2024 · This tutorial explains the usage of MySQL IF and IF ELSE Statements in Select queries or functions with syntax and practical examples.
28 maj 2024 · In this article, we explored different options for executing IF-THEN logic in a SQL SELECT statement. These options include using CASE, IIF(), and CHOOSE(). Furthermore, if we want a query that’s used in almost every dialect, we must choose the CASE statement.
Use IF...THEN statement to conditionally execute a block of statements based on the evaluation of a specified condition. Use IF...THEN...ELSE statement to execute a block of statements if a specified condition is true and an alternative block of statements if the condition is false.
7 mar 2022 · In some cases, you might want to choose the output value based on column values directly in your SQL statement. In this article, we will explain how to use the CASE expression in SELECT SQL statements. We will also explain how to use an alternative approach with an IF clause for MySQL.
The MySQL IF function is a control flow function that allows you to perform conditional logic within a query. It is commonly used in SELECT statements to return different values based on a specified condition.
How can I use an if/else condition on a select statement in mysql? If Type = "Initial Read", Select the Initial Column from table_name else if Type = "Final Read", Select the Final Column from table_name
