Writing optional parameters within stored procedures in MySQL? [duplicate]

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Optional Parameters are not yet supported on MySQL. I’m suggesting that you pass null value in your parameter and inside your stored procedure has an IF statement.

DELIMITER $$
CREATE PROCEDURE procName
(IN param VARCHAR(25))
BEGIN
   IF param IS NULL THEN 
      -- statements ;
   ELSE commands
      -- statements ;
   END IF;
END$$
DELIMITER ;

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