求SQL2005高性能存储过程分页代码
求sql2005高性能存储过程分页代码及调用代码
前辈们
小弟刚入行 请写注释 !
谢谢!
数据大概在6-8万条左右 峰值在 14万左右 谢谢啦
ASP.NET
[解决办法]
才14W的数据有什么好怕的!
CREATE PROCEDURE dbo.f_page(@pagesize int,@pageindex int,@docount bit,@argcode varchar(100),@argtable varchar(100),@order varchar(100),@where varchar(500),@counts int = 1 output) AS BEGIN TRANSACTIONSET NOCOUNT ON IF(@docount=1) BEGIN DECLARE @sqlStr Varchar(4000) SET @sqlStr='SELECT COUNT('+@argcode+') FROM '+@argtable+' WHERE ' + @where EXEC(@sqlStr) ENDELSE BEGIN CREATE TABLE #indextable(id bigint identity(1,1),nid bigint) DECLARE @PageLowerBound int DECLARE @PageUpperBound int DECLARE @sqlStr4 nvarchar(4000) DECLARE @sqlStr1 Varchar(4000) DECLARE @sqlStr2 Varchar(4000) DECLARE @sqlStr3 Varchar(4000) DECLARE @a1 varchar(100)DECLARE @a2 varchar(100) SET @PageLowerBound=(@pageindex-1)*@pagesize SET @PageUpperBound=@PageLowerBound+@pagesize SET ROWCOUNT @PageUpperBoundset @a1=@PageLowerBoundset @a2=@PageUpperBound set @sqlstr3='AND t.id>'+@a1+' AND t.id<='+@a2 SET @sqlStr1='INSERT INTO #indextable(nid) SELECT '+@argcode+' FROM '+@argtable+' WHERE ' + @where + ' ORDER BY ' + @order EXEC(@sqlStr1) SET @sqlstr2=' SELECT * FROM '+@argtable+',#indextable t WHERE '+@argcode+' =t.nid '+@sqlstr3+' ORDER BY t.id' SET @sqlStr4='SELECT @counts=COUNT('+@argcode+') FROM '+@argtable+' WHERE ' + @where exec sp_executesql @sqlStr4,N'@counts int out ',@counts out Exec (@sqlstr2) ENDSET NOCOUNT OFFCOMMIT TRANSACTIONGO
[解决办法]
ALTER PROCEDURE [dbo].[Pg_Paging]@Tables varchar(1000), --表名,多红表是请使用 tA a inner join tB b On a.AID = b.AID@PK varchar(100), --主键,可以带表头 a.AID@Sort varchar(200) = '', --排序字段@PageNumber int = 1, --开始页码@PageSize int = 10, --页大小@Fields varchar(1000) = '*',--读取字段@Filter varchar(1000) = NULL,--Where条件@Group varchar(1000) = NULL, --分组@isCount bit = 0 --1 --是否获得总记录数AS----select * from GL_NEWS order by GN_UPDATE_DATE DESC--exec Pg_Paging @Tables = 'tb_NewsInfo', @PK = 'News_ID', @Sort = 'News_ID DESC', @PageNumber = 2, @PageSize = 15,@Fields = '*', @Group = '', @isCount = 0DECLARE @strFilter varchar(2000)declare @sql varchar(8000)IF @Filter IS NOT NULL AND @Filter != '' BEGIN SET @strFilter = ' WHERE ' + @Filter + ' ' ENDELSE BEGIN SET @strFilter = '' ENDif @isCount = 1 --只获得记录条数 begin set @sql = 'SELECT Count(*) FROM ' + @Tables + @strFilter endelsebeginif @Sort = '' set @Sort = @PK + ' DESC 'IF @PageNumber < 1 SET @PageNumber = 1if @PageNumber = 1 --第一页提高性能begin set @sql = 'select top ' + str(@PageSize) +' '+@Fields+ ' from ' + @Tables + ' ' + @strFilter + ' ORDER BY '+ @Sortend else begin /**//**//**//*Execute dynamic query*/ DECLARE @START_ID varchar(50)DECLARE @END_ID varchar(50)SET @START_ID = convert(varchar(50),(@PageNumber - 1) * @PageSize + 1)SET @END_ID = convert(varchar(50),@PageNumber * @PageSize) set @sql = ' SELECT '+@Fields+ ' FROM (SELECT ROW_NUMBER() OVER(ORDER BY '+@Sort+') AS rownum, '+@Fields+ ' FROM '+@Tables+') AS D WHERE rownum BETWEEN '+@START_ID+' AND ' +@END_ID +' ORDER BY '+@Sort ENDEND--print @sqlEXEC(@sql)