====== Functions & Procedures For Mysql, Mariadb ====== * description : 마리아DB, Mysql 유용한 사용자 정의 함수 모음 * author : 주레피 * email : dhan@repia.com * lastupdate : 2022-05-18 ===== Case Study ===== HTML 제거


SET GLOBAL log_bin_trust_function_creators=1;
DROP FUNCTION IF EXISTS fnStripTags;
DELIMITER |
CREATE FUNCTION fnStripTags( Dirty varchar(4000) )
RETURNS varchar(4000)
DETERMINISTIC 
BEGIN
  DECLARE iStart, iEnd, iLength int;
    WHILE Locate( '<', Dirty ) > 0 And Locate( '>', Dirty, Locate( '<', Dirty )) > 0 DO
      BEGIN
        SET iStart = Locate( '<', Dirty ), iEnd = Locate( '>', Dirty, Locate('<', Dirty ));
        SET iLength = ( iEnd - iStart) + 1;
        IF iLength > 0 THEN
          BEGIN
            SET Dirty = Insert( Dirty, iStart, iLength, '');
          END;
        END IF;
      END;
    END WHILE;
    RETURN Dirty;
END;
|
DELIMITER ;
SELECT fnStripTags('this is a test, nothing more');

===== Ref ===== * [[https://forums.mysql.com/read.php?52,177343,177985|Re: Removing HTML tags using mysql]] {{tag>주레피 마리아DB mariadb mysql 함수 프로시저}}