종류: 구문/절/제약조건 등
SELECT
FROM
WHERE
GROUP BY
HAVING
ORDER BY
INSERT INTO
UPDATE
DELETE
JOIN
LIMIT
UNION
UNION ALL
INTERSECT
EXCEPT
DISTINCT
AS
LIKE
IN
BETWEEN
CASE
CREATE
ALTER
DROP
TURNCATE
FOREIGN KEY
PRIMARY KEY
INDEX
VIEW
NOT NULL
AUTO_INCREMENT
WITH AS
CHECK
UNIQUE
