Syntax error while creating own function in MySQL

Question

I tried to create own function in MySQL, but the code below doesn't work. There is any syntax error, but after 30mins I'm unable to find what is wrong. Any ideas?

DROP FUNCTION IF EXISTS `gps_distance`;;
CREATE FUNCTION `gps_distance`(lat1 FLOAT,lng1 FLOAT,lat2 FLOAT,lng2 FLOAT) RETURNS float
    READS SQL DATA
    DETERMINISTIC

BEGIN
SET lat1 = lat1 * pi() / 180;
SET lng1 = lng1 * pi() / 180;
SET lat2 = lat2 * pi() / 180;
SET lng2 = lng2 * pi() / 180;

    RETURN acos
    (   cos(lat1)*cos(lng1)*cos(lat2)*cos(lng2)
      + cos(lat1)*sin(lng1)*cos(lat2)*sin(lng2)
      + sin(lat1)*sin(lat2)
    ) * 6372.795;

END;;

The error is reported on line 6, after BEGIN clause.

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 6

Should it depends on MySQL version (I have 5.6.21)? On PMA version (4.3.0)? I tried to run this query from PHP script, the same problem.
Thanks for answers.

You didn't change the delimiter, so your ; are terminating the function definition, before it ever really gets started. — Marc B
– Marc B, Commented Mar 27, 2015 at 15:09

mysqlrockstar · Accepted Answer · 2015-03-27 15:13:20Z

2

Are you sure that the delimiter is set to something other than semicolon

DROP FUNCTION IF EXISTS `gps_distance`;

DELIMITER $$

CREATE FUNCTION `gps_distance`(lat1 FLOAT,lng1 FLOAT,lat2 FLOAT,lng2 FLOAT) RETURNS float
READS SQL DATA
DETERMINISTIC

BEGIN
SET lat1 = lat1 * pi() / 180;
SET lng1 = lng1 * pi() / 180;
SET lat2 = lat2 * pi() / 180;
SET lng2 = lng2 * pi() / 180;

    RETURN acos
    (   cos(lat1)*cos(lng1)*cos(lat2)*cos(lng2)
      + cos(lat1)*sin(lng1)*cos(lat2)*sin(lng2)
      + sin(lat1)*sin(lat2)
    ) * 6372.795;

END $$

DELIMITER ;

edited Mar 27, 2015 at 15:13

answered Mar 27, 2015 at 15:08

mysqlrockstar

2,6301 gold badge21 silver badges39 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Rakesh Singh · Accepted Answer · 2015-03-27 15:09:04Z

0

add delimiter in procedure.

DELIMITER // 
DROP FUNCTION IF EXISTS `gps_distance`;
CREATE FUNCTION `gps_distance`(lat1 FLOAT,lng1 FLOAT,lat2 FLOAT,lng2 FLOAT) RETURNS float
    READS SQL DATA
    DETERMINISTIC

BEGIN
SET lat1 = lat1 * pi() / 180;
SET lng1 = lng1 * pi() / 180;
SET lat2 = lat2 * pi() / 180;
SET lng2 = lng2 * pi() / 180;

    RETURN acos
    (   cos(lat1)*cos(lng1)*cos(lat2)*cos(lng2)
      + cos(lat1)*sin(lng1)*cos(lat2)*sin(lng2)
      + sin(lat1)*sin(lat2)
    ) * 6372.795;

END //

DELIMITER;

answered Mar 27, 2015 at 15:09

Rakesh Singh

1,2609 silver badges8 bronze badges

Collectives™ on Stack Overflow

Syntax error while creating own function in MySQL

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related