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  • sql 分页查询

    ---sql 分页查询
    create table Paging(
    ID  int null,
    Num int null)
    declare @i as int
    set @i=1000
    while @i<10000
    begin
    insert into Paging
    select @i,floor(rand()*20)
    set @i=@i+1
    end
    select * from Paging
    --每页10条,取第800页数据
    --方法一:Order by
    Select Top (40-31+1)  * From Paging Where ID in (Select Top 8010 ID From Paging Order by ID  ) Order by ID Desc
    --方法二:not in/top
    select top 10 * from Paging where id not in (select top 8000 id from Paging order by id) order by id
    --方法三:not exists 
    select top 10 * from Paging where not exists 
    (select 1 from (select top 8000 id from Paging order by id)a1 where a1.id=Paging.id) order by id
    --方法四:max/top
    select top 10 * from Paging where id>(select max(id) from (select top 8000 id from Paging order by id)a1) order by id
    --方法五:row_number()
    select * from (select row_number()over(order by id)rownumber,* from Paging)a1 where rownumber>30 and rownumber<41
    --方法六:row_number() 变体,不基于已有字段产生记录序号,先按条件筛选以及排好序,再在结果集上给一常量列用于产生记录序号
    select * from (select row_number()over(order by id)rownumber,* from (select top 40 * from Paging where 1=1 order by id)a
    )b where rownumber>30
    
    
    exec pag_1 201
    --分页,每页20条数据存储过程
    create proc pag_1
    @i int
    as
    begin
    select ID,Num from (select ROW_NUMBER()over(order by ID) nume,* from paging)a
    where a.nume>(@i-1)*20 and a.nume<(@i*20)+1
    end
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  • 原文地址:https://www.cnblogs.com/zzchao/p/10918834.html
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