sql_mode=ORACLE: Some keywords do not work in variable declarations

SET sql_mode=ORACLE;

DELIMITER /

DECLARE

  do INT;

BEGIN

  SELECT do INTO do FROM DUAL;

END;

/

DECLARE

  handler INT;

BEGIN

  SELECT handler INTO handler FROM DUAL;

END;

/

DECLARE

  repair INT;

BEGIN

  SELECT repair INTO repair FROM DUAL;

END;

/

DECLARE

  shutdown INT;

BEGIN

  SELECT shutdown INTO shutdown FROM DUAL;

END;

/

DECLARE

  truncate INT;

BEGIN

  SELECT truncate INTO truncate FROM DUAL;

END;

/

DECLARE

  close INT;

BEGIN

  SELECT close INTO close FROM DUAL;

END;

/

DECLARE

  commit INT;

BEGIN

  SELECT commit INTO commit FROM DUAL;

END;

/

DECLARE

  open INT;

BEGIN

  SELECT open INTO open FROM DUAL;

END;

/

DECLARE

  rollback INT;

BEGIN

  SELECT rollback INTO rollback FROM DUAL;

END;

/

DECLARE

  savepoint INT;

BEGIN

  SELECT savepoint INTO savepoint FROM DUAL;

END;

/

DECLARE

  contains INT;

BEGIN

  SELECT contains INTO contains FROM DUAL;

END;

/

DECLARE

  language INT;

BEGIN

  SELECT language INTO language FROM DUAL;

END;

/

DECLARE

  no INT;

BEGIN

  SELECT no INTO no FROM DUAL;

END;

/

DECLARE

  charset INT;

BEGIN

  SELECT charset INTO charset FROM DUAL;

END;

/

DECLARE

  follows INT;

BEGIN

  SELECT follows INTO follows FROM DUAL;

END;

/

DECLARE

  precedes INT;

BEGIN

  SELECT precedes INTO precedes FROM DUAL;

END;

/

ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'do INT;

BEGIN

  SELECT do INTO do FROM DUAL;

END' at line 2