三种SQL分页法

表中主键必须为标识列，[ID] int IDENTITY (1,1)

1.分页方案一：(利用Not In和SELECT TOP分页)

语句形式：

SELECT TOP 10 *
FROM TestTable
WHERE (ID NOT IN
          (SELECT TOP 20 id
         FROM TestTable
         ORDER BY id))
ORDER BY ID

SELECT TOP 页大小 *
FROM TestTable
WHERE (ID NOT IN
          (SELECT TOP 页大小*页数 id
         FROM 表
         ORDER BY id))
ORDER BY ID

 

 

2.分页方案二：(利用ID大于多少和SELECT TOP分页,效率最高）

语句形式： 
SELECT TOP 10 *
FROM TestTable
WHERE (ID >
          (SELECT MAX(id)
         FROM (SELECT TOP 20 id
                 FROM TestTable
                 ORDER BY id) AS T))
ORDER BY ID

SELECT TOP 页大小 *
FROM TestTable
WHERE (ID >
          (SELECT MAX(id)
         FROM (SELECT TOP 页大小*(页数-1) id
                 FROM 表
                 ORDER BY id) AS T))
ORDER BY ID

 

 

3.分页方案三：(利用SQL的游标存储过程分页)

create  procedure SqlPager
@sqlstr nvarchar(4000), --查询字符串
@currentpage int, --第N页
@pagesize int --每页行数
as
set nocount on
declare @P1 int, --P1是游标的id
 @rowcount int
exec sp_cursoropen @P1 output,@sqlstr,@scrollopt=1,@ccopt=1, @rowcount=@rowcount output
select ceiling(1.0*@rowcount/@pagesize) as 总页数--,@rowcount as 总行数,@currentpage as 当前页
set @currentpage=(@currentpage-1)*@pagesize+1
exec sp_cursorfetch @P1,16,@currentpage,@pagesize
exec sp_cursorclose @P1
set nocount off

 

第 4 种

select top pageSize * from foodInfo where foodid <= (select min(t.foodid) as m from (select top (currPage * pageSize + 1) * from foodInfo order by foodid desc) as t) order by foodid desc