DataGrip 2021.2 Help

Code Inspection: Using CASE instead of conditional function and vice versa

Reports situations when CASE and IF are interchangeable.

Example (MySQL):

SELECT CASE WHEN C1 IS NULL THEN 1 ELSE 0 END FROM dual;


To keep your code short, you can replace the CASE structure with IF. You can do that by applying the Replace with 'IF' call intention action. The example code will look as follows:
SELECT IF(C1 IS NULL, 1, 0) FROM dual;


To revert IF to CASE, click IF and apply the Replace with CASE expression intention action.

Suppress an inspection in the editor

  1. Position the caret at the highlighted line and press Alt+Enter or click the Intention action icon.

  2. Click the arrow next to the inspection you want to suppress and select the necessary suppress action.

Last modified: 16 July 2021