getting syntax error on creating function

Question

I'm trying to create a function like the following:

CREATE FUNCTION TitleToFileName(title varchar(200)) RETURNS varchar(200)
  BEGIN
    set title = REPLACE(title,":"," ");
    set title=REPLACE(title,"/"," ");
    set title=REPLACE(title,"_"," ");
    RETURN title;
  END

MySQL shows error :

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 3

I tried using ' instead of " and @title instead of title , but didn't work..

Probably a delimiter problem. Add DELIMITER $$ or something similar before the definition. — Gordon Linoff
– Gordon Linoff, Commented Sep 28, 2018 at 14:30

Madhur Bhaiya · Accepted Answer · 2018-09-28 14:31:48Z

2

You need to redefine Delimiter to something else (eg: $$), instead of (;).
Also as a safety measure, check if the same name function already exists or not (DROP FUNCTION IF EXISTS)
At the end, redefine the DELIMITER to ;

Try :

DELIMITER $$
DROP FUNCTION IF EXISTS `TitleToFileName`$$
CREATE FUNCTION TitleToFileName(title varchar(200)) RETURNS varchar(200)
  BEGIN
    set title = REPLACE(title,":"," ");
    set title=REPLACE(title,"/"," ");
    set title=REPLACE(title,"_"," ");
    RETURN title;
  END $$
DELIMITER ;

answered Sep 28, 2018 at 14:31

Madhur Bhaiya

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