Mel Mel - 3 months ago 11
MySQL Question

MySQL CREATE FUNCTION Syntax

I am trying to create a function in MySQL:

Here is the SQL code:

CREATE FUNCTION F_Dist3D (x1 decimal, y1 decimal)
RETURNS decimal
DETERMINISTIC
BEGIN
DECLARE dist decimal;
SET dist = SQRT(x1 - y1);
RETURN dist;
END;


I am getting the following 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 '' at line 10


I am running this create statement in myphpadmin. What is wrong with this Function?

Answer

You have to override your ; delimiter with something like $$ to avoid this kind of error.

After your function definition, you can set the delimiter back to ;.

This should work:

DELIMITER $$
CREATE FUNCTION F_Dist3D (x1 decimal, y1 decimal) 
RETURNS decimal
DETERMINISTIC
BEGIN 
  DECLARE dist decimal;
  SET dist = SQRT(x1 - y1);
  RETURN dist;
END$$
DELIMITER ;