各个数据库的分页算法（转载）

1.SQL SERVER 是用先逆序再正序的方法
Sql代码  收藏代码

    select top 3 * from (select top 9 * from mvc_book order by bid) as s order by s.bid desc [第6,5,4条] 


Sql代码  收藏代码

    select * from (select top 3 * from (select top 6 * from mvc_book order by bid) as s order by s.bid desc) as s1 order by s1.bid  [第4,5,6条] 


Sql代码  收藏代码

    select top 6 * from mvc_book where (bid not in (select top 2 bid from mvc_book))[第3,4,5,6,7,8条] 


2.ORACLE 用Minus和Rownum来实现 (Minus 减去  Union 联合 Intersect 返回相同的记录集)
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    select * from t_service_vnet_send where rownum <= 15 MINUS select * from t_service_vnet_send where rownum <= 10; 


或
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    select * from (select rownum no,id,age,name from loaddata where rownum <= 3 ) where no >= 2; 


3.DB2
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    select * from (select ROW_NUMBER() over() as a, org.* from org) as temp where a>=n1 and a<=n2 


4.MYSQL
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    select * from tablename limit m,n;