Code Inspection: Using CASE instead of COALESCE function and vice versa
Reports situations when CASE and COALESCE calls are interchangeable. This inspection has the following intention actions: Replace with 'COALESCE' call and the opposite one Replace with CASE expression.
SELECT -- this CASE may be replaced by COALESCE CASE WHEN C1 IS NOT NULL THEN C1 ELSE 0 END FROM dual;
In the example, the CASE statement can be replaced with
SELECT COALESCE(C1, 0) that produces the same output.
If you prefer using CASE expressions, select the Prefer CASE expressions over COALESCE function option on the inspection page.
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Click the arrow next to the inspection you want to suppress and select the necessary suppress action.
Last modified: 13 May 2022