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完整SQL分页存储过程（支持多表联接）

news 来源：原创 2024/5/20 3:19:07

/********************************************************* * 作用：数据分页(完整SQL分页存储过程（支持多表联接）) * 作者：齐李平 * 创建日期：2009-03-23 * 使用说明： 1、单表调用方法：EXEC proc_DataPagination @tblName = 'ipa',@fldName = '*',@pageSize =50,@page = 6789,@fldSort = '',@Sort = 1,@strCondition = '',@ID = 'id',@Dist = 0,@pageCount = null,@Counts = NULL 2、多表调用方法：EXEC proc_DataPagination @tblName = 'Info LEFT JOIN InfoType it ON it.typeid=Info.tid',@fldName = 'info.*,it.tname',@pageSize =50,@page = 1806,@fldSort = '',@Sort = 0,@strCondition = '',@ID = 'id',@Dist = 0, @pageCount = null,@Counts = NULL * 多表联合查询使用需注意：1、多表中的主键字段不能为相同的名称。2、多表中不能允许具有相同名称的字段，如果存在相同名称的字段你可以使用AS重命名 *********************************************************/ alter PROCEDURE [dbo].[proc_DataPagination] ( @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 @fldSort nvarchar(200) = null, ----排序字段列表或条件 @Sort bit = 0, ----排序方法，1为升序，0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 @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 ) 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(0)' end else begin set @SqlSelect = 'select distinct ' set @SqlCounts = 'Count(DISTINCT '+@ID+')' end if @Sort=0 begin set @strFSortType=' DESC ' set @strSortType=' DESC ' end else begin set @strFSortType=' ASC ' set @strSortType=' ASC ' end if(@fldSort is not null and @fldSort<>'') begin set @fldSort=','+@fldSort end else begin set @fldSort=' ' 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 --为配合显示 --set nocount off --select @page curpage,@pageSize pagesize,@pageCount countpage,@tmpCounts [Rowcount] --set nocount on --//***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(40))+' '+ @fldName+' from '+@tblName +' order by '+ @ID+' '+ @strFSortType+@fldSort else begin set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(40))+' '+ @fldName+' from '+@tblName +' where '+@ID if @Sort=0 set @strTmp = @strTmp + '>(select max(' else set @strTmp = @strTmp + '<(select min(' set @strTmp = @strTmp + @ID +') from ('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from '+@tblName +' order by '+ @ID+' '+ @strFSortType+@fldSort+') AS TBMinID)' +' order by '+ @ID+' '+ @strFSortType+@fldSort 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(40))+' '+ @fldName+' from '+@tblName +' order by '+ @ID +' '+ @strSortType+@fldSort+') AS TempTB'+' order by '+ @ID+' '+ @strFSortType+@fldSort else begin set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(40))+' '+ @fldName+' from '+@tblName +' where '+@ID if @Sort=0 set @strTmp=@strTmp+' <(select min(' else set @strTmp=@strTmp+' >(select max(' set @strTmp=@strTmp+ @ID +') from('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as Varchar(20)) +' '+ @ID +' from '+@tblName +' order by '+ @ID +' '+ @strSortType+@fldSort+') AS TBMaxID)' +' order by '+ @ID +' '+ @strSortType+@fldSort+') AS TempTB'+' order by '+ @ID+' '+ @strFSortType+@fldSort end 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(40))+' '+ @fldName+' from '+@tblName +' where 1=1 ' + @strCondition + ' order by '+ @ID+' '+ @strFSortType+@fldSort else begin set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(40))+' '+ @fldName+' from '+@tblName +' where '+@ID if @Sort=0 set @strTmp = @strTmp + '>(select max(' else set @strTmp = @strTmp + '<(select min(' set @strTmp = @strTmp + @ID +') from ('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from '+@tblName +' where (1=1) ' + @strCondition +' order by '+ @ID+' '+ @strFSortType+@fldSort+') AS TBMinID)' +' '+ @strCondition +' order by '+ @ID+' '+ @strFSortType+@fldSort 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(40))+' '+ @fldName+' from '+@tblName +' where (1=1) '+ @strCondition +' order by '+ @ID +' '+ @strSortType+@fldSort+') AS TempTB'+' order by '+ @ID+' '+ @strFSortType+@fldSort else begin set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(40))+' '+ @fldName+' from '+@tblName +' where '+@ID if @Sort=0 set @strTmp = @strTmp + '<(select min(' else set @strTmp = @strTmp + '>(select max(' set @strTmp = @strTmp + @ID +') from('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as Varchar(20)) +' '+ @ID +' from '+@tblName +' where (1=1) '+ @strCondition +' order by '+ @ID +' '+ @strSortType+@fldSort+') AS TBMaxID)' +' '+ @strCondition+' order by '+ @ID +' '+ @strSortType+@fldSort+') AS TempTB'+' order by '+ @ID+' '+ @strFSortType+@fldSort end end end ------返回查询结果----- SET NOCOUNT off exec sp_executesql @strTmp print @strTmp

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