MySQL split

CREATE FUNCTION SPLIT_STR(x VARCHAR(255), delim VARCHAR(12), pos INT)
  RETURNS VARCHAR(255)
  RETURN REPLACE(SUBSTRING(SUBSTRING_INDEX(x, delim, pos), LENGTH(SUBSTRING_INDEX(x, delim, pos -1)) + 1), delim, '');

使用：SPLIT_STR(t.organize_code, '-', 1)