+
-
*
/
(
)
'
as
===
%
0
1
2
3
4
5
6
7
8
9
.
更多
SELECT
FROM
INNER JOIN
LEFT JOIN
RIGHT JOIN
FULL JOIN
WHERE
AND
OR
GROUP BY
ORDER BY DESC
COUNT(*)
LIMIT ,
MAX( )
MIN( )
ON
like
DISTINCT
AVG( )
SUM( )
CURDATE()
ISNULL( ,0)
NOW()
ROUND( , )
TRIM( )
RAND()
FORMAT( )
W3School SQL 教程