1.FROM
2.JOIN
3.ON
4.WHERe
5.CROUP BY
6.HAVINg
7.SELECT
8.DISTINCT
9.ORDER BY
10.LIMIT
PS: 有子查询优先查询子查询
1.FROM
2.JOIN
3.ON
4.WHERe
5.CROUP BY
6.HAVINg
7.SELECT
8.DISTINCT
9.ORDER BY
10.LIMIT
PS: 有子查询优先查询子查询
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