Some words in an SQL statement have a special meaning and cannot be used as regular identifiers. These keywords include the following:
ALL
AND
AS
ASC
AVG
BETWEEN
BY
COUNT
DELETE
DESC
DISTINCT
FROM
GROUP
HAVING
IN
INSERT
INTO
IS
LIKE
MAX
MIN
NULL
OR
ORDER
SELECT
SET
SUM
UPDATE
VALUES
WHERE
Note:
These keywords can be used as regular identifiers outside SQL statements. Also, in compliance with SQL standards, keyword case is ignored within SQL statements, so SELECT, Select, and select are all accepted.