Question

I’m trying to create a MySQL function with multiple inputs, but keep getting an error:

DELIMITER $$
mysql> CREATE FUNCTION jb_test (a CHAR, b CHAR)
    -> RETURNS CHAR     
    -> DETERMINISTIC
    -> SET say = CONCAT(a,b);
    -> RETURN say;
    -> END$$
ERROR 1064 (42000): 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 'FUNCTION jb_test (a CHAR, b CHAR)
RETURNS CHAR
DETERMINISTIC
SET say = CONCAT(a,b' at line 1

Answer 1

CREATE FUNCTION jb_test (a CHAR, b CHAR)
  RETURNS CHAR
   DETERMINISTIC
    BEGIN
     DECLARE say CHAR;
     SET say = CONCAT(a,b);
     RETURN say;
    END|