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SELECT id, 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
21 lut 2011 · To select all records where an integer or decimal number exists: SELECT * FROM myTable WHERE col1 REGEXP '^[0-9]+\\.?[0-9]*$'; - for 123.12 Result: '111' (same as last example) Finally, to select all records where number exists, use this: SELECT * FROM myTable WHERE col1 REGEXP '[0-9]+'; Result: 'test0' and 'test1111' and '111test' and '111'
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.
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. Works in: From MySQL 4.0. More Examples. Example. Return 5 if the condition is TRUE, or 10 if the condition is FALSE:
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. Syntax. The syntax for the MySQL IF function is as follows: IF(condition, value_if_true, value_if_false)
Syntax. MySQL. IF(conditional_expression, value_under_true_condition, value_on_false_condition); The IF function looks at the truth of the conditional expression and, depending on this truth, returns either the value passed in the second argument or the third argument. Examples. Simple example. MySQL. SELECTIF(10>20,"TRUE","FALSE");
11 lip 2024 · The IF function in MySQL allows for conditional logic to return specific results based on the evaluation of a condition. This specific query involves two parts: A subquery that contains a CASE expression: SELECT CASE WHEN 1 > 0 THEN 'true' ELSE 'false' END: The CASE expression checks the condition 1 > 0.
