mysql split string
CREATE FUNCTION `SPLIT_STRING`(
str VARCHAR(255) ,
delim VARCHAR(12) ,
pos INT
) RETURNS VARCHAR(255) CHARSET utf8 RETURN REPLACE(
SUBSTRING(
SUBSTRING_INDEX(str , delim , pos) ,
CHAR_LENGTH(
SUBSTRING_INDEX(str , delim , pos - 1)
) + 1
) ,
delim ,
''
);
SELECT
-- keyword 1
SPLIT_STRING(`keywords`,',',1) AS keyword_1,
-- keyword 4, NOT trimmed
SPLIT_STRING(`keywords`,',',4) AS keyword_4,
-- keyword 4, trimmed
trim(SPLIT_STRING(`keywords`,',',4)) AS keyword_4_trimmed
FROM `test`;