Query gives #1305 - FUNCTION database-name.LEN does not exist; WHY? - mysql

Question

EDIT3 MySQL Fiddle Here. I have made the example MySQL so you can see the actual problems. While I am expecting to have Jamie Foxx, Christoph Waltz in the 2 names result it gives much more. Even though it is written the exact same way as it was in the SQL example where it return the names correctly. :/
EDIT2 SQL Fiddle here. This is a much simpler version, but the logic is there. I need to have this working in MySQL as the fiddle is in SQL. When I just replace the SQL functions with LENGTH and LOCATE and test it with PhpMyAdmin it returns the entire content of the actors column, not just the first two names. I am even more confused now as the LOCATE is supposed to be equivalent to the CHARINDEX.
EDIT1 *Oh, I just found it that neither LEN or CHARINDEX exist in MySQL. I think I can replace LEN with LENGTH, but I don't know what to do with the CHARINDEX I tried using LOCATE but the result is incorrect it gives the full content of the actors field. Any insight on this?
Another follow up on my previous questions. This should be the end of it though. I had part of the query that uses the len function working on SQL Fiddle, but as soon as I implemented it into the final query in my actual database I getting the function does not exist error. Listing all I consider related below:
MySQL query
SELECT
title,
director,
thumb,
LEFT(actors, LEN(actors) - CHARINDEX(', ', actors))AS '2 names'
FROM test
WHERE MATCH (title, director, actors) AGAINST ('arc*' IN BOOLEAN MODE)
The error
#1305 - FUNCTION database-name.LEN does not exist
Setup
OS: MAC OSX
SERVER: MAMP
DB ACCESS: PhpMyAdmin
SHOW CREATE TABLE test
CREATE TABLE `test` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`title` varchar(255) NOT NULL,
`director` varchar(255) NOT NULL,
`actors` varchar(10000) NOT NULL DEFAULT 'Jamie Foxx, Christoph Waltz, Leonardo DiCaprio, Kerry Washington, Samuel L. Jackson',
`summary` text NOT NULL,
`cover` varchar(255) NOT NULL DEFAULT 'http://localhost:8888/assets/OBS/img/uploads/covers-thumb/django_thumb.jpg',
`thumb` varchar(255) NOT NULL DEFAULT 'http://localhost:8888/assets/OBS/img/uploads/covers-bug/django1_cover.jpg',
`trailer` varchar(255) NOT NULL DEFAULT 'fnaojlfdUbs',
PRIMARY KEY (`id`),
FULLTEXT KEY `myindex` (`title`,`director`,`actors`)
) ENGINE=MyISAM AUTO_INCREMENT=101 DEFAULT CHARSET=utf8
I really don't understand why I am getting this error, as the statement worked fine on SQL Fiddle. If you'd need any additional information just ask for it. Thank you all for reading and in advance for your replies.
BTW: Any chance it is caused by actors varchar(10000)?

Answer 1

MySQL doesn't have a built-in CHARINDEX() function.Instead you can use LOCATE equivalent to charindex ,and instead of LEN you can use LENGTH
SELECT
title,
director,
thumb,
LEFT(actors, LENGTH(actors) - LOCATE(', ', actors))AS '2 names'
FROM test
WHERE MATCH (title, director, actors) AGAINST ('arc*' IN BOOLEAN MODE)
See fiddle demo
If you just want to show two actors name you can use SUBSTRING_INDEX
SELECT
title,
director,
thumb,
SUBSTRING_INDEX(actors, ',', 2) AS '2 names'
FROM test
WHERE MATCH (title, director, actors) AGAINST ('test*' IN BOOLEAN MODE)
See second fiddle demo