理解SQL的select语句执行顺序_[SQL Server教程] select语句执行顺序
(7)SELECT (8)DISTINCT (10)<TOP_specification> <select_list> (1)FROM <left_table> (3) <join_type> JOIN <right_table> (2) ON <join_condition> (4)WHERE <where_condition> (5)GROUP BY <group_by_list> (6)HAVING <having_condition> (9)ORDER BY <order_by_list>
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