几种分页存储过程
过程一：
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select top N条记录 * from 文章表 where id not in(select top M条记录 id from 文章表 order by id desc ) order by id desc
过程二：
select top N条记录 * from 文章表 where id <(select min(id) from (select top M条记录 id from 文章表 order by id desc ) as tblTmp) order by id desc
--简单通用
CREATE PROCEDURE [dbo].[PageView]
@select VARCHAR(max),
@CurrentPage INT,
@PageSize INT
AS
BEGIN
declare @sql NVARCHAR(max)
DECLARE @RecordCurrent INT
DECLARE @PageCount INT
DECLARE @RecordCount INT
SET NOCOUNT ON
set @sql='select @RecordCount=count(*) from ('+@select+') a'
exec sp_executesql @sql,N'@RecordCount int output',@RecordCount output
SET @PageCount=(@RecordCount+@PageSize-1)/@PageSize
IF ISNULL(@CurrentPage,0)<1
SET @CurrentPage=1
ELSE if ISNULL(@CurrentPage,0)>@PageCount
SET @CurrentPage=@PageCount
SELECT @CurrentPage AS CurrentPage,@RecordCount AS RecordCount,@PageSize AS PageSize,@PageCount AS PageCount
set @sql='select * from ('+@select+') a where rownumber between '+cast((@CurrentPage-1)*@PageSize+1 as varchar)+' and '+cast(@CurrentPage*@PageSize as varchar)
exec (@sql)
END
--使用not in 方式的存储过程
create PROCEDURE GetPageDataByNotIn
@PageIndex int,/**//*当前页数*/
@PageSize int/**//*每页大小*/
AS
declare @starttime datetime
set @starttime=getdate()
IF @PageIndex > 0
BEGIN
set nocount on;
DECLARE @PageLowerBound int
DECLARE @StartID int
DECLARE @sql varchar(225)
SET @PageLowerBound = @PageSize * (@PageIndex-1)
IF @PageLowerBound<1
SET @PageLowerBound=1
print @PageLowerBound
select top (@PageSize) * from table where [ar_id] not in (select top ((@PageSize)*(@PageIndex-1)) ar_id from table )
EXEC(@sql)
set nocount off;
END
print '耗时='+convert(varchar(30),datediff(ms,@starttime,getdate()))
-------------------------------------------------------------------------------------------------------
--使用ROWCOUNT的分页存储过程
create PROCEDURE GetPageData
@PageIndex int,/**//*当前页数*/
@PageSize int/**//*每页大小*/
AS
declare @starttime datetime
set @starttime=getdate()
IF @PageIndex > 0
BEGIN
set nocount on;
DECLARE @PageLowerBound int
DECLARE @StartID int
DECLARE @sql varchar(225)
SET @BeginIndex = @PageSize * (@PageIndex-1)
IF @BeginIndex<1
SET @BeginIndex=1
SET ROWCOUNT @BeginIndex
SELECT @StartID = [ar_id] FROM table ORDER BY ar_id
print @StartID
SET ROWCOUNT 0
SET @sql='select top '+str(@PageSize) +' * from table where [ar_id]>='+ str(@StartID) +' ORDER BY [ar_id] '
EXEC(@sql)
set nocount off;
END
print '耗时='+convert(varchar(30),datediff(ms,@starttime,getdate()))
-----------------------------------------------------------------------------------------------------
测试查询一张有100W条数据的表table，每页显示10条数据
存储过程 第1页 第10页 第100页 第1000页 第5000页
GetPageDataByNotIn 0 0 126 13530 等了2分多钟没耐性了....
GetPageData 0 0 0 16 76
------------------------------------------------------------------------------------------------------------
最后使用的存储过程(推荐)：
create PROCEDURE GetPageData
(
@TableName varchar(30),--表名称
@IDName varchar(20),--表主键名称
@PageIndex int,--当前页数
@PageSize int--每页大小
)
AS
IF @PageIndex > 0
BEGIN
set nocount on
DECLARE @PageLowerBound int,@StartID int,@sql nvarchar(225)
SET @PageLowerBound = @PageSize * (@PageIndex-1)
IF @PageLowerBound<1
SET @PageLowerBound=1
SET ROWCOUNT @PageLowerBound
SET @sql=N'SELECT @StartID = ['+@IDName+'] FROM '+@TableName+' ORDER BY '+@IDName
exec sp_executesql @sql,N'@StartID int output',@StartID output
SET ROWCOUNT 0
SET @sql='select top '+str(@PageSize) +' * from '+@TableName+' where ['+@IDName+']>='+ str(@StartID) +' ORDER BY ['+@IDName+'] '
EXEC(@sql)
set nocount off
END
标题名称：几种分页存储过程
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