SQL Server 2005高效分页存储过程

概述SQL Server 2005高效分页存储过程

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IF exists (SELECT * FROM dbo.sysobjects WHERE ID = object_ID(N'[dbo].[proc_DataPagingList]') and OBJECTPROPERTY(ID,N'IsProcedure') = 1)drop procedure [dbo].[proc_DataPagingList]GOCREATE PROCEDURE [dbo].[proc_DataPagingList](@tablename NVARCHAR(200),----要显示的表或多个表的连接@fIEldnames NVARCHAR(200)='*',----要显示的字段列表@pageSize INT = 10,----每页显示的记录个数@page INT = 10,----要显示那一页的记录@pageCount INT = 1 output,----查询结果分页后的总页数@counts INT = 1 output,----查询到的总记录数@fIEldSort NVARCHAR(200)= null,----排序字段列表或条件@sort BIT = 1,----排序方法，0为升序，1为降序--程序传参如：' SortA Asc,SortB Desc,SortC ')@condition NVARCHAR(200)= null,----查询条件,不需WHERE@keyID NVARCHAR(100),----主表的主键@distinct BIT = 0              ----是否添加查询字段的 disTINCT 默认0不添加/1添加)ASSET NOCOUNT ONDeclare @SELECT NVARCHAR(1000)    ----存放动态生成的SQL语句Declare @strCounts NVARCHAR(1000) ----存放取得查询结果总数的查询语句Declare @strID  NVARCHAR(1000)    ----存放取得查询开头或结尾ID的查询语句Declare @sortTypeA NVARCHAR(10)   ----数据排序规则ADeclare @SortTypeB NVARCHAR(10)   ----数据排序规则BDeclare @distSelect NVARCHAR(50)  ----对含有disTINCT的查询进行sql构造Declare @distCounts NVARCHAR(50)  ----对含有disTINCT的总数查询进行sql构造DECLARE @SortfIEldA NVARCHAR(50)  ----对含有是否还有排序字段时的排序方式组合ADECLARE @SortfIEldB NVARCHAR(50)  ----对含有是否还有排序字段时的排序方式组合BIF @distinct = 0	BEGIN		SET @distSelect = 'SELECT '		SET @distCounts = ' COUNT(*)'	ENDELSE	BEGIN		SET @distSelect = 'SELECT distinct '		SET @distCounts = ' COUNT(disTINCT '[email protected]+')'	ENDIF @sort=0	BEGIN		SET @SortTypeB=' ASC '		SET @sortTypeA=' DESC '	ENDELSE	BEGIN		SET @SortTypeB=' DESC '		SET @sortTypeA=' ASC '	ENDIF @fIEldSort IS NOT NulL AND @fIEldSort<>'' --排序字段不为空时	BEGIN		SET @SortfIEldB=' order by '+ @fIEldSort +' '+ @SortTypeB		SET @SortfIEldA=' order by '+ @fIEldSort +' '+ @SortTypeA 	ENDELSE	BEGIN		SET @SortfIEldB=''		SET @SortfIEldA=''	END--------生成查询语句----------此处@strCounts为取得查询结果数量的语句IF @condition is null or @condition=''     --没有设置显示条件	BEGIN		SET @SELECT =  @fIEldnames + ' FROM ' + @tablename		SET @strCounts = @distSelect+' @counts='[email protected]+' FROM '[email protected]		SET @strID = ' FROM ' + @tablename	ENDELSE	BEGIN		SET @SELECT = + @fIEldnames + 'FROM ' + @tablename + ' WHERE  ' + @condition		SET @strCounts = @distSelect+' @counts='[email protected]+' FROM '[email protected] + ' WHERE ' + @condition		SET @strID = ' FROM ' + @tablename + ' WHERE  ' + @condition	END----取得查询结果总数量-----exec sp_executesql @strCounts,N'@counts INT out ',@counts outDECLARE @tmpCounts INTIF @counts = 0    SET @tmpCounts = 1ELSE    SET @tmpCounts = @counts    --取得分页总数    SET @pageCount=(@tmpCount[email protected])/@pageSize    --/**当前页大于总页数 取最后一页**/    IF @page>@pageCount        SET @[email protected]    --/*-----数据分页2分处理-------*/    DECLARE @pageIndex INT --总数/页大小    DECLARE @lastcount INT --总数%页大小     SET @pageIndex = @tmpCounts/@pageSize    SET @lastcount = @tmpCounts%@pageSize    IF @lastcount > 0        SET @pageIndex = @pageIndex + 1    ELSE        SET @lastcount = @pageSize    --显示分页    IF @condition is null or @condition=''     --没有设置显示条件    BEGIN        IF @pageIndex<2 or @page<[email protected] / 2 + @pageIndex % 2   --前半部分数据处理            BEGIN                 SET @[email protected]+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fIEldnames+' FROM '[email protected] + ' WHERE '[email protected]+' not in('+ @distSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @keyID +' FROM '[email protected] + @SortfIEldB +')' + @SortfIEldB             END        ELSE            BEGIN            SET @page = @[email protected]+1 --后半部分数据处理                IF @page <= 1 --最后一页数据显示                    SET @[email protected]+' * FROM ('[email protected]+' top '+ CAST(@lastcount as VARCHAR(4))+' '+ @fIEldnames+' FROM '[email protected] + @SortfIEldA+') AS TempTB '[email protected]                ELSE                                    SET @[email protected]+' * FROM ('[email protected]+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fIEldnames+' FROM '[email protected] + ' WHERE '[email protected]+' not in('+ @distSelect+' top '+ CAST(@pageSize*(@page-2)[email protected] as Varchar(20)) +' '+ @keyID +' FROM '[email protected] + @SortfIEldA+')' + @SortfIEldA+') AS TempTB '[email protected]            END    END    ELSE --有查询条件    BEGIN        IF @pageIndex<2 or @page<[email protected] / 2 + @pageIndex % 2   --前半部分数据处理        BEGIN                 SET @[email protected]+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fIEldnames +' FROM  '[email protected] + ' WHERE '[email protected]+' not in('+ @distSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @keyID +' FROM '[email protected] + ' Where ' + @condition + @SortfIEldB+')'+' AND ' + @condition + @SortfIEldB                         END        ELSE        BEGIN             SET @page = @[email protected]+1 --后半部分数据处理            IF @page <= 1 --最后一页数据显示                    SET @[email protected]+' * FROM ('[email protected]+' top '+ CAST(@lastcount as VARCHAR(4))+' '+ @fIEldnames+' FROM '[email protected] + ' WHERE  '+ @condition [email protected]+') AS TempTB '[email protected]            ELSE                    SET @[email protected]+' * FROM ('[email protected]+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fIEldnames+' FROM '[email protected] + ' WHERE '[email protected]+' not in('+ @distSelect+' top '+ CAST(@pageSize*(@page-2)[email protected] as Varchar(20)) +' ' + @keyID +' FROM '[email protected] +' WHERE  '+ @condition [email protected]+')' +' AND '+ @condition [email protected]+') AS TempTB ' + @SortfIEldB         END        END------返回查询结果-----exec sp_executesql @strCountsSET NOCOUNT OFF 

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