数据库之select的执行顺序

数据库之select执行顺序

8) SELECT (9) DISTINCT (11) <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) WITH {CUBE | ROLLUP}   

--(7) HAVING <having_condition>  

--(10) ORDER BY <order_by_list>