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sql -- 利用order by 排名作弊

* from (select * from user_level where id in (2,4,6) order by user_total desc ) a union (select * from (select * from user_level where id not in (2,4,6) order by user_total desc ) b)

方法2:直接在order by加

select * from user_level order by id in (2,4,6) desc,user_total desc ;

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sql -- 利用order by 排名作弊

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