高性能分页存储过程

select count(1) from dbo.GatherKeyWordInfo

dbo.p_PartPage 'GatherKeyWordInfo','GatherKeyWordID',5,1000,'','',''

exec [dbo].[p_PartPage] 'V_GatherKeyWordInfo','GatherKeyWordID','*',5,1000,'','newid()',''

select top 10 * from V_GatherKeyWordInfo

if(object_id('p_PartPage') is not null)

drop proc [dbo].[p_PartPage]

go

create PROCEDURE [dbo].[p_PartPage]

@tableName varchar(50),

@tableId varchar(50),

@pageIndex int, -- 当前页索引

@pageSize int, -- 每页显示多少条

@strWhere varchar(500), -- 查询条件

@order varchar(50), -- 排序 如： id asc,time desc

@Fields varchar(1000) = '*'--读取字段

AS

DECLARE @strFilter varchar(2000)

declare @sql varchar(8000)

IF @strWhere IS NOT NULL AND @strWhere != ''

BEGIN

SET @strFilter = ' WHERE ' + @strWhere + ' '

END

ELSE

BEGIN

SET @strFilter = ''

END

if @orderCol = ''

set @orderCol = @tableId

IF @pageIndex < 1

SET @pageIndex = 1

if @pageIndex = 1 --第一页提高性能

begin

set @sql = 'select top ' + str(@PageSize) +' '+@Fields+ ' from ' + @tableName + ' ' + @strFilter + ' ORDER BY '+ @order

end

else

begin

/**//*Execute dynamic query*/

DECLARE @START_ID varchar(50)

DECLARE @END_ID varchar(50)

SET @START_ID = convert(varchar(50),(@pageIndex - 1) * @PageSize + 1)

SET @END_ID = convert(varchar(50),@pageIndex * @PageSize)

set @sql = ' SELECT '+@Fields+ '

FROM (SELECT ROW_NUMBER() OVER(ORDER BY '+@orderCol+') AS rownum,

'+@Fields+ '

FROM '+@tableName+' ' +@strFilter+') AS D

WHERE rownum BETWEEN '+@START_ID+' AND ' +@END_ID +' ORDER BY '+@order

END

set @sql = @sql + '; SELECT Count(*) FROM ' + @tableName + @strFilter

EXEC(@sql)

go

select * from sysobjects where name = 'p_PartPage'