sql if statement function code example

Example 1: sql if else

-- PL/SQL
BEGIN
    IF my_val = 1 THEN [...]
    ELSE [...]
    END IF;
END;
-- In a query (DUAL is for Oracle)
SELECT CASE WHEN my_col = 1 THEN 'Ok' ELSE 'Ko' END AS my_result
FROM DUAL;

Example 2: how to do an if statement in sql server

DECLARE @Course_ID INT = 4

IF (@Course_ID = 4)
Select * from Guru99 where Tutorial_ID = 4
ELSE
Select * from Guru99 where Tutorial_ID != 4

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Sql Example

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