DELIMITER $$
CREATE FUNCTION nameOfFunct(intIn int)
RETURN int
BEGIN
DECLARE intOut INT;
SET intOut = SELECT count(*)
FROM tableToTakeFrom
WHERE columToCompareTo = intIn;
RETURN intOut;
END;
$$
DELIMITER;
If I try to run this all I get is:
SQL Error (1064): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'RETURN int
BEGIN
DECLARE intOut INT;
SET intOut = select count(' at line 2
A couple of changes to resolve the problem:
DELIMITER $$
CREATE FUNCTION nameOfFunct(intIn INT)
-- RETURN INT
RETURNS INT
BEGIN
DECLARE intOut INT;
/*SET intOut = SELECT COUNT(*)
FROM tableToTakeFrom
WHERE columToCompareTo = intIn;*/
SET intOut = (SELECT COUNT(*)
FROM tableToTakeFrom
WHERE columToCompareTo = intIn);
RETURN intOut;
END $$
DELIMITER ;
Defining the return type is done by the RETURNS
keywrod, not the RETURN
keyword:
CREATE FUNCTION nameOfFunct(intIn int)
RETURNS int
BEGIN
DECLARE intOut INT;
SET intOut = SELECT count(*)
FROM tableToTakeFrom
WHERE columToCompareTo = intIn;
RETURN intOut;
END;
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