分页存储过程一:
--/*-----存储过程 分页处理 孙伟 2005-03-28创建 -------*/ --/*----- 对数据进行了2分处理使查询前半部分数据与查询后半部分数据性能相同 -------*/ --/*-----存储过程 分页处理 孙伟 2005-04-21修改 添加Distinct查询功能-------*/ --/*-----存储过程 分页处理 孙伟 2005-05-18修改 多字段排序规则问题-------*/ --/*-----存储过程 分页处理 孙伟 2005-06-15修改 多字段排序修改-------*/ --/*-----存储过程 分页处理 孙伟 2005-12-13修改 修改数据分页方式为top max模式性能有极大提高-------*/ --/*-----缺点:相对之前的not in版本主键只能是整型字段,如主键为GUID类型请使用not in 模式的版本-------*/ CREATE PROCEDURE dbo.proc_ListPageInt ( @tblName nvarchar(200), ----要显示的表或多个表的连接 @fldName nvarchar(500) = '*', ----要显示的字段列表 @pageSize int = 10, ----每页显示的记录个数 @page int = 1, ----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, ----查询到的记录数 @fldSort nvarchar(200) = null, ----排序字段列表或条件 @Sort bit = 0, ----排序方法,0为升序,1为降序(如果是多字段排列Sort指代最后一个排序字段的排列顺序(最后一个排序字段不加排序标记)--程序传参如:' SortA Asc,SortB Desc,SortC ') @strCondition nvarchar(1000) = null, ----查询条件,不需where @ID nvarchar(150), ----主表的主键 @Dist bit = 0 ----是否添加查询字段的 DISTINCT 默认0不添加/1添加 ) AS SET NOCOUNT ON Declare @sqlTmp nvarchar(1000) ----存放动态生成的SQL语句 Declare @strTmp 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 @strSortType nvarchar(10) ----数据排序规则A Declare @strFSortType nvarchar(10) ----数据排序规则B Declare @SqlSelect nvarchar(50) ----对含有DISTINCT的查询进行SQL构造 Declare @SqlCounts nvarchar(50) ----对含有DISTINCT的总数查询进行SQL构造 if @Dist = 0 begin set @SqlSelect = 'select ' set @SqlCounts = 'Count(*)' end else begin set @SqlSelect = 'select distinct ' set @SqlCounts = 'Count(DISTINCT '+@ID+')' end if @Sort=0 begin set @strFSortType=' ASC ' set @strSortType=' DESC ' end else begin set @strFSortType=' DESC ' set @strSortType=' ASC ' end --------生成查询语句-------- --此处@strTmp为取得查询结果数量的语句 if @strCondition is null or @strCondition='' --没有设置显示条件 begin set @sqlTmp = @fldName + ' From ' + @tblName set @strTmp = @SqlSelect+' @Counts='+@SqlCounts+' FROM '+@tblName set @strID = ' From ' + @tblName end else begin set @sqlTmp = + @fldName + 'From ' + @tblName + ' where (1>0) ' + @strCondition set @strTmp = @SqlSelect+' @Counts='+@SqlCounts+' FROM '+@tblName + ' where (1>0) ' + @strCondition set @strID = ' From ' + @tblName + ' where (1>0) ' + @strCondition end ----取得查询结果总数量----- exec sp_executesql @strTmp,N'@Counts int out ',@Counts out declare @tmpCounts int if @Counts = 0 set @tmpCounts = 1 else set @tmpCounts = @Counts --取得分页总数 set @pageCount=(@tmpCounts+@pageSize-1)/@pageSize /**//**当前页大于总页数 取最后一页**/ if @page>@pageCount set @page=@pageCount --/*-----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 @strCondition is null or @strCondition='' --没有设置显示条件 begin if @pageIndex<2 or @page<=@pageIndex / 2 + @pageIndex % 2 --前半部分数据处理 begin if @page=1 set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName +' order by '+ @fldSort +' '+ @strFSortType else begin set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName +' where '+@ID+' <(select min('+ @ID +') from ('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from '+@tblName +' order by '+ @fldSort +' '+ @strFSortType+') AS TBMinID)' +' order by '+ @fldSort +' '+ @strFSortType end end else begin set @page = @pageIndex-@page+1 --后半部分数据处理 if @page <= 1 --最后一页数据显示 set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@lastcount as VARCHAR(4))+' '+ @fldName+' from '+@tblName +' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType else set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName +' where '+@ID+' >(select max('+ @ID +') from('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as Varchar(20)) +' '+ @ID +' from '+@tblName +' order by '+ @fldSort +' '+ @strSortType+') AS TBMaxID)' +' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType end end else --有查询条件 begin if @pageIndex<2 or @page<=@pageIndex / 2 + @pageIndex % 2 --前半部分数据处理 begin if @page=1 set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName +' where 1=1 ' + @strCondition + ' order by '+ @fldSort +' '+ @strFSortType else begin set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName +' where '+@ID+' <(select min('+ @ID +') from ('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from '+@tblName +' where (1=1) ' + @strCondition +' order by '+ @fldSort +' '+ @strFSortType+') AS TBMinID)' +' '+ @strCondition +' order by '+ @fldSort +' '+ @strFSortType end end else begin set @page = @pageIndex-@page+1 --后半部分数据处理 if @page <= 1 --最后一页数据显示 set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@lastcount as VARCHAR(4))+' '+ @fldName+' from '+@tblName +' where (1=1) '+ @strCondition +' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType else set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName +' where '+@ID+' >(select max('+ @ID +') from('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as Varchar(20)) +' '+ @ID +' from '+@tblName +' where (1=1) '+ @strCondition +' order by '+ @fldSort +' '+ @strSortType+') AS TBMaxID)' +' '+ @strCondition+' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType end end ------返回查询结果----- exec sp_executesql @strTmp --print @strTmp SET NOCOUNT OFF GO
怎么在数据库中测试呢?
declare @pageCount int declare @Counts int exec [dbo].[proc_ListPageInt] 'sysobjects', '* ', 20,1,@pageCount output,@Counts output,'id', 0,'','id',0 print @pageCount --这个可有可无 print @Counts --这个可有可无
执行效果如下:
分页存储过程二:
USE [JianKunKingTestDatabase001] GO /****** Object: StoredProcedure [dbo].[A_P_HelpPageShow] Script Date: 01/21/2015 19:19:42 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ALTER PROCEDURE [dbo].[A_P_HelpPageShow] ( @tblName nvarchar(max), -- 表名 @strGetFields varchar(1000) = '*', -- 需要返回的列 @fldName varchar(255)='', -- 排序的字段名 @PageSize int = 10, -- 页尺寸 @PageIndex int = 1, -- 页码 @OrderType bit = 0, -- 设置排序类型, 非 0 值则降序 @strWhere varchar(1500) = '', -- 查询条件 (注意: 不要加 where) @Counts int = 0 output --查询到的记录数 ) AS declare @strSQL nvarchar(4000) -- 主语句 declare @strTmp nvarchar(110) -- 临时变量 declare @strOrder nvarchar(400) -- 排序类型 declare @totalRecord int --查询到的记录数 declare @SqlCounts nvarchar(max) ----对总数查询进行SQL构造 --计算总记录数 begin if @strWhere !='' set @SqlCounts = 'select @totalRecord=count(*) from ' + @tblName + ' where '+@strWhere else set @SqlCounts = 'select @totalRecord=count(*) from ' + @tblName + '' end --print @strWhere --print @SqlCounts exec sp_executesql @SqlCounts,N'@totalRecord int OUTPUT',@totalRecord OUTPUT--计算总记录数 set @Counts=@totalRecord begin if @OrderType != 0 begin set @strTmp = '<(select min' set @strOrder = ' order by ' + @fldName +' desc' --如果@OrderType不是0,就执行降序,这句很重要! end else begin set @strTmp = '>(select max' set @strOrder = ' order by ' + @fldName +' asc' end --print @strOrder if @PageIndex = 1 begin if @strWhere != '' set @strSQL = 'select top ' + str(@PageSize) +' '+@strGetFields+ ' from ' + @tblName + ' where ' + @strWhere + ' ' + @strOrder else set @strSQL = 'select top ' + str(@PageSize) +' '+@strGetFields+ ' from '+ @tblName + ' '+ @strOrder --如果是第一页就执行以上代码,这样会加快执行速度 end else begin --以下代码赋予了@strSQL以真正执行的SQL代码 set @strSQL = 'select top ' + str(@PageSize) +' '+@strGetFields+ ' from ' + @tblName + ' where ' + @fldName + ' ' + @strTmp + '('+ @fldName + ') from (select top ' + str((@PageIndex-1)*@PageSize) + ' '+ @fldName + ' from ' + @tblName + ' ' + @strOrder + ') as tblTmp)'+ @strOrder --print @strSQL if @strWhere != '' set @strSQL = 'select top ' + str(@PageSize) +' '+@strGetFields+ ' from ' + @tblName + ' where ' + @fldName + ' ' + @strTmp + '(' + @fldName + ') from (select top ' + str((@PageIndex-1)*@PageSize) + ' ' + @fldName + ' from ' + @tblName + ' where ' + @strWhere + ' ' + @strOrder + ') as tblTmp) and ' + @strWhere + ' ' + @strOrder end end --print @strSQL exec sp_executesql @strSQL GO
怎么在数据库中测试呢?
select count(*) from sysobjects ; declare @CountsAA int exec [dbo].[A_P_HelpPageShow] 'sysobjects', '* ', 'id ',20, 1,1, ' ',@CountsAA output print @CountsAA --这个可有可无
执行结果如下:
存储过程二(优化版)
USE [JianKunKingTestDatabase001] GO /****** Object: StoredProcedure [dbo].[A_P_HelpPageShow] Script Date: 01/30/2015 20:21:13 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE PROCEDURE [dbo].[A_P_HelpPageShow] ( @TableName nvarchar(max), -- 表名 @strGetFields varchar(1000) = '*', -- 需要返回的列 @OrderField varchar(255)='', -- 排序的字段名 @PageSize int = 10, -- 页尺寸 @PageIndex int = 1, -- 页码 @strWhere varchar(1500) = '', -- 查询条件 (注意: 不要加 where) @Counts int = 0 output --查询到的记录数 ) AS declare @strSQL nvarchar(4000) -- 主语句 declare @totalRecord int --查询到的记录数 declare @SqlCounts nvarchar(max) ----对总数查询进行SQL构造 --计算总记录数 begin if @strWhere !='' set @SqlCounts = 'select @totalRecord=count(*) from ' + @TableName + ' where '+@strWhere else set @SqlCounts = 'select @totalRecord=count(*) from ' + @TableName + '' end exec sp_executesql @SqlCounts,N'@totalRecord int OUTPUT',@totalRecord OUTPUT--计算总记录数 set @Counts=@totalRecord BEGIN IF (@strWhere='' or @strWhere IS NULL) SET @strSQL = 'Select * FROM (select ' + @strGetFields + ',ROW_NUMBER() Over(order by ' + @OrderField + ') as rowId from ' + @TableName ELSE SET @strSQL = 'Select * FROM (select ' + @strGetFields + ',ROW_NUMBER() Over(order by ' + @OrderField + ') as rowId from ' + @TableName + ' where ' + @strWhere END --处理页数超出范围情况 IF @PageIndex<=0 SET @PageIndex = 1 --处理开始点和结束点 DECLARE @StartRecord INT DECLARE @EndRecord int SET @StartRecord = (@pageIndex-1)*@PageSize + 1 SET @EndRecord = @StartRecord + @PageSize - 1 --继续合成sql语句 SET @strSQL = @strSQL + ') as tempTable where rowId >=' + CONVERT(VARCHAR(50),@StartRecord) + ' and rowid<= ' + CONVERT(VARCHAR(50),@EndRecord) exec sp_executesql @strSQL GO
拓展:http://blog.csdn.net/jiankunking/article/details/43339301