2分法-通用存储过程分页(top max模式)版本(性能相对之前的not in版本极大提高)
2007-04-30 07:28
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--/*-----存储过程 分页处理 SW 2005-03-28创建 -------*/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--/*----- 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 -------*/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--/*-----存储过程 分页处理 2005-04-21修改 添加Distinct查询功能-------*/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--/*-----存储过程 分页处理 2005-05-18修改 多字段排序规则问题-------*/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--/*-----存储过程 分页处理 2005-06-15修改 多字段排序修改-------*/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--/*-----存储过程 分页处理 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-------*/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--/*-----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-------*/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
CREATE PROCEDURE dbo.proc_ListPageInt
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
(
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@tblName nvarchar(200), ----要显示的表或多个表的连接
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@fldName nvarchar(500) = '*', ----要显示的字段列表
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@pageSize int = 10, ----每页显示的记录个数
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@page int = 1, ----要显示那一页的记录
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@pageCount int = 1 output, ----查询结果分页后的总页数
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@Counts int = 1 output, ----查询到的记录数
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@fldSort nvarchar(200) = null, ----排序字段列表或条件
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@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 ')
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@strCondition nvarchar(1000) = null, ----查询条件,不需where
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@ID nvarchar(150), ----主表的主键
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@Dist bit = 0 ----是否添加查询字段的 DISTINCT 默认0不添加/1添加
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
AS
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
SET NOCOUNT ON
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
Declare @sqlTmp nvarchar(1000) ----存放动态生成的SQL语句
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
Declare @strTmp nvarchar(1000) ----存放取得查询结果总数的查询语句
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
Declare @strID nvarchar(1000) ----存放取得查询开头或结尾ID的查询语句
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
Declare @strSortType nvarchar(10) ----数据排序规则A
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
Declare @strFSortType nvarchar(10) ----数据排序规则B
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
Declare @SqlSelect nvarchar(50) ----对含有DISTINCT的查询进行SQL构造
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
Declare @SqlCounts nvarchar(50) ----对含有DISTINCT的总数查询进行SQL构造
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @Dist = 0
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @SqlSelect = 'select '
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @SqlCounts = 'Count(*)'
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @SqlSelect = 'select distinct '
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @SqlCounts = 'Count(DISTINCT '+@ID+')'
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @Sort=0
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strFSortType=' ASC '
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strSortType=' DESC '
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strFSortType=' DESC '
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strSortType=' ASC '
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--------生成查询语句--------
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--此处@strTmp为取得查询结果数量的语句
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @strCondition is null or @strCondition='' --没有设置显示条件
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @sqlTmp = @fldName + ' From ' + @tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp = @SqlSelect+' @Counts='+@SqlCounts+' FROM '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strID = ' From ' + @tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @sqlTmp = + @fldName + 'From ' + @tblName + ' where (1>0) ' + @strCondition
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp = @SqlSelect+' @Counts='+@SqlCounts+' FROM '+@tblName + ' where (1>0) ' + @strCondition
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strID = ' From ' + @tblName + ' where (1>0) ' + @strCondition
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
----取得查询结果总数量-----
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
exec sp_executesql @strTmp,N'@Counts int out ',@Counts out
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
declare @tmpCounts int
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @Counts = 0
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @tmpCounts = 1
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @tmpCounts = @Counts
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--取得分页总数
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @pageCount=(@tmpCounts+@pageSize-1)/@pageSize
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
/**//**当前页大于总页数 取最后一页**/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @page>@pageCount
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @page=@pageCount
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--/*-----数据分页2分处理-------*/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
declare @pageIndex int --总数/页大小
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
declare @lastcount int --总数%页大小
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @pageIndex = @tmpCounts/@pageSize
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @lastcount = @tmpCounts%@pageSize
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @lastcount > 0
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @pageIndex = @pageIndex + 1
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @lastcount = @pagesize
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--//***显示分页
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @strCondition is null or @strCondition='' --没有设置显示条件
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @pageIndex<2 or @page<=@pageIndex / 2 + @pageIndex % 2 --前半部分数据处理
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @page=1
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where '+@ID+' <(select min('+ @ID +') from ('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' order by '+ @fldSort +' '+ @strFSortType+') AS TBMinID)'
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @page = @pageIndex-@page+1 --后半部分数据处理
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @page <= 1 --最后一页数据显示
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@lastcount as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where '+@ID+' >(select max('+ @ID +') from('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as Varchar(20)) +' '+ @ID +' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' order by '+ @fldSort +' '+ @strSortType+') AS TBMaxID)'
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else --有查询条件
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @pageIndex<2 or @page<=@pageIndex / 2 + @pageIndex % 2 --前半部分数据处理
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @page=1
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where 1=1 ' + @strCondition + ' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where '+@ID+' <(select min('+ @ID +') from ('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where (1=1) ' + @strCondition +' order by '+ @fldSort +' '+ @strFSortType+') AS TBMinID)'
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' '+ @strCondition +' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @page = @pageIndex-@page+1 --后半部分数据处理
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @page <= 1 --最后一页数据显示
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@lastcount as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where (1=1) '+ @strCondition +' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where '+@ID+' >(select max('+ @ID +') from('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as Varchar(20)) +' '+ @ID +' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where (1=1) '+ @strCondition +' order by '+ @fldSort +' '+ @strSortType+') AS TBMaxID)'
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' '+ @strCondition+' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
------返回查询结果-----
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
exec sp_executesql @strTmp
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--print @strTmp
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
SET NOCOUNT OFF
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
GO
调用方法列子:
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
/**//// <summary>
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
/// 通用分页数据读取函数
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
/// 注意:在函数调用外部打开和关闭连接,以及关闭数据读取器
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
/// </summary>
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
/// <param name="comm">SqlCommand对象</param>
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
/// <param name="_tblName">查询的表/表联合</param>
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
/// <param name="_fldName">要查询的字段名</param>
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
/// <param name="_pageSize">每页数据大小</param>
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
/// <param name="_page">当前第几页</param>
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
/// <param name="_fldSort">排序字段</param>
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
/// <param name="_Sort">排序顺序0降序1升序</param>
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
/// <param name="_strCondition">过滤条件</param>
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
/// <param name="_ID">主表主键</param>
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
/// <param name="_dr">返回的SqlDataReader ref</param>
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
public static void CutPageData(SqlConnection conn, ref SqlCommand comm, string _tblName, string _fldName, int _pageSize, int _page, string _fldSort, int _Sort, string _strCondition, string _ID, ref SqlDataReader _dr)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
![](http://www.cnblogs.com/Images/dot.gif)
{
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
//注意:在函数调用外部打开和关闭连接,以及关闭数据读取器
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
//comm = new SqlCommand("proc_ListPage",conn);
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
//comm.CommandType = CommandType.StoredProcedure;
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters.Add("@tblName", SqlDbType.NVarChar, 200);
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters["@tblName"].Value = _tblName;
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters.Add("@fldName", SqlDbType.NVarChar, 500);
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters["@fldName"].Value = _fldName;
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters.Add("@pageSize", SqlDbType.Int);
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters["@pageSize"].Value = _pageSize;
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters.Add("@page", SqlDbType.Int);
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters["@page"].Value = _page;
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters.Add("@fldSort", SqlDbType.NVarChar, 200);
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters["@fldSort"].Value = _fldSort;
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters.Add("@Sort", SqlDbType.Bit);
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters["@Sort"].Value = _Sort;
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters.Add("@strCondition", SqlDbType.NVarChar, 1000);
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters["@strCondition"].Value = _strCondition;
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters.Add("@ID", SqlDbType.NVarChar, 150);
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters["@ID"].Value = _ID;
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters.Add("@Counts", SqlDbType.Int, 0);
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters["@Counts"].Direction = ParameterDirection.Output;
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters.Add("@pageCount", SqlDbType.Int, 0);
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
comm.Parameters["@pageCount"].Direction = ParameterDirection.Output;
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
_dr = comm.ExecuteReader();
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
调用例如:
CutPageData(conn, ref comm, "VOX_CDSinger", "id, cdsinger, cdsingertype, area, cdsingerreadme", 15, page, "id", 1, strFilter, "id", ref dr);
对应说明:
CutPageData(数据连接对象, ref Sqlcommand对象, "需要表或视图名称", "要查询的字段", 每页读取数据条数, 当前页, "排序字段可多字段如(addtime desc, visitcounts注意这里最后一个字段不加desc或asc 最后一个字段对应于后面的排序规则)", 排序方式(1 desc 0 asc), where条件(这里不再添加where条件添加如:' and visitcounts>100'), 表主键, ref 返回的SqlDataReader对象);
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--/*----- 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 -------*/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--/*-----存储过程 分页处理 2005-04-21修改 添加Distinct查询功能-------*/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--/*-----存储过程 分页处理 2005-05-18修改 多字段排序规则问题-------*/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--/*-----存储过程 分页处理 2005-06-15修改 多字段排序修改-------*/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--/*-----存储过程 分页处理 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-------*/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--/*-----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-------*/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
CREATE PROCEDURE dbo.proc_ListPageInt
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
(
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@tblName nvarchar(200), ----要显示的表或多个表的连接
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@fldName nvarchar(500) = '*', ----要显示的字段列表
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@pageSize int = 10, ----每页显示的记录个数
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@page int = 1, ----要显示那一页的记录
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@pageCount int = 1 output, ----查询结果分页后的总页数
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@Counts int = 1 output, ----查询到的记录数
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@fldSort nvarchar(200) = null, ----排序字段列表或条件
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@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 ')
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@strCondition nvarchar(1000) = null, ----查询条件,不需where
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@ID nvarchar(150), ----主表的主键
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
@Dist bit = 0 ----是否添加查询字段的 DISTINCT 默认0不添加/1添加
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
AS
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
SET NOCOUNT ON
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
Declare @sqlTmp nvarchar(1000) ----存放动态生成的SQL语句
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
Declare @strTmp nvarchar(1000) ----存放取得查询结果总数的查询语句
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
Declare @strID nvarchar(1000) ----存放取得查询开头或结尾ID的查询语句
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
Declare @strSortType nvarchar(10) ----数据排序规则A
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
Declare @strFSortType nvarchar(10) ----数据排序规则B
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
Declare @SqlSelect nvarchar(50) ----对含有DISTINCT的查询进行SQL构造
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
Declare @SqlCounts nvarchar(50) ----对含有DISTINCT的总数查询进行SQL构造
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @Dist = 0
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @SqlSelect = 'select '
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @SqlCounts = 'Count(*)'
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @SqlSelect = 'select distinct '
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @SqlCounts = 'Count(DISTINCT '+@ID+')'
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @Sort=0
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strFSortType=' ASC '
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strSortType=' DESC '
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strFSortType=' DESC '
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strSortType=' ASC '
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--------生成查询语句--------
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--此处@strTmp为取得查询结果数量的语句
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @strCondition is null or @strCondition='' --没有设置显示条件
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @sqlTmp = @fldName + ' From ' + @tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp = @SqlSelect+' @Counts='+@SqlCounts+' FROM '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strID = ' From ' + @tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @sqlTmp = + @fldName + 'From ' + @tblName + ' where (1>0) ' + @strCondition
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp = @SqlSelect+' @Counts='+@SqlCounts+' FROM '+@tblName + ' where (1>0) ' + @strCondition
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strID = ' From ' + @tblName + ' where (1>0) ' + @strCondition
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
----取得查询结果总数量-----
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
exec sp_executesql @strTmp,N'@Counts int out ',@Counts out
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
declare @tmpCounts int
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @Counts = 0
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @tmpCounts = 1
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @tmpCounts = @Counts
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--取得分页总数
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @pageCount=(@tmpCounts+@pageSize-1)/@pageSize
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
/**//**当前页大于总页数 取最后一页**/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @page>@pageCount
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @page=@pageCount
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--/*-----数据分页2分处理-------*/
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
declare @pageIndex int --总数/页大小
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
declare @lastcount int --总数%页大小
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @pageIndex = @tmpCounts/@pageSize
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @lastcount = @tmpCounts%@pageSize
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @lastcount > 0
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @pageIndex = @pageIndex + 1
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @lastcount = @pagesize
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
--//***显示分页
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @strCondition is null or @strCondition='' --没有设置显示条件
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @pageIndex<2 or @page<=@pageIndex / 2 + @pageIndex % 2 --前半部分数据处理
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @page=1
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where '+@ID+' <(select min('+ @ID +') from ('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' order by '+ @fldSort +' '+ @strFSortType+') AS TBMinID)'
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @page = @pageIndex-@page+1 --后半部分数据处理
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @page <= 1 --最后一页数据显示
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@lastcount as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where '+@ID+' >(select max('+ @ID +') from('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as Varchar(20)) +' '+ @ID +' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' order by '+ @fldSort +' '+ @strSortType+') AS TBMaxID)'
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else --有查询条件
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @pageIndex<2 or @page<=@pageIndex / 2 + @pageIndex % 2 --前半部分数据处理
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @page=1
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where 1=1 ' + @strCondition + ' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where '+@ID+' <(select min('+ @ID +') from ('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where (1=1) ' + @strCondition +' order by '+ @fldSort +' '+ @strFSortType+') AS TBMinID)'
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' '+ @strCondition +' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
begin
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @page = @pageIndex-@page+1 --后半部分数据处理
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
if @page <= 1 --最后一页数据显示
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@lastcount as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where (1=1) '+ @strCondition +' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
else
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where '+@ID+' >(select max('+ @ID +') from('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as Varchar(20)) +' '+ @ID +' from '+@tblName
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' where (1=1) '+ @strCondition +' order by '+ @fldSort +' '+ @strSortType+') AS TBMaxID)'
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
+' '+ @strCondition+' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
![](http://hertcloud.cnblogs.com/Images/OutliningIndicators/None.gif)
end
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end
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------返回查询结果-----
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exec sp_executesql @strTmp
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--print @strTmp
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SET NOCOUNT OFF
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GO
调用方法列子:
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/**//// <summary>
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/// 通用分页数据读取函数
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/// 注意:在函数调用外部打开和关闭连接,以及关闭数据读取器
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/// </summary>
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/// <param name="comm">SqlCommand对象</param>
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/// <param name="_tblName">查询的表/表联合</param>
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/// <param name="_fldName">要查询的字段名</param>
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/// <param name="_pageSize">每页数据大小</param>
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/// <param name="_page">当前第几页</param>
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/// <param name="_fldSort">排序字段</param>
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/// <param name="_Sort">排序顺序0降序1升序</param>
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/// <param name="_strCondition">过滤条件</param>
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/// <param name="_ID">主表主键</param>
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/// <param name="_dr">返回的SqlDataReader ref</param>
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public static void CutPageData(SqlConnection conn, ref SqlCommand comm, string _tblName, string _fldName, int _pageSize, int _page, string _fldSort, int _Sort, string _strCondition, string _ID, ref SqlDataReader _dr)
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{
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//注意:在函数调用外部打开和关闭连接,以及关闭数据读取器
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//comm = new SqlCommand("proc_ListPage",conn);
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//comm.CommandType = CommandType.StoredProcedure;
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comm.Parameters.Add("@tblName", SqlDbType.NVarChar, 200);
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comm.Parameters["@tblName"].Value = _tblName;
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comm.Parameters.Add("@fldName", SqlDbType.NVarChar, 500);
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comm.Parameters["@fldName"].Value = _fldName;
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comm.Parameters.Add("@pageSize", SqlDbType.Int);
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comm.Parameters["@pageSize"].Value = _pageSize;
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comm.Parameters.Add("@page", SqlDbType.Int);
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comm.Parameters["@page"].Value = _page;
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comm.Parameters.Add("@fldSort", SqlDbType.NVarChar, 200);
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comm.Parameters["@fldSort"].Value = _fldSort;
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comm.Parameters.Add("@Sort", SqlDbType.Bit);
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comm.Parameters["@Sort"].Value = _Sort;
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comm.Parameters.Add("@strCondition", SqlDbType.NVarChar, 1000);
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comm.Parameters["@strCondition"].Value = _strCondition;
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comm.Parameters.Add("@ID", SqlDbType.NVarChar, 150);
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comm.Parameters["@ID"].Value = _ID;
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comm.Parameters.Add("@Counts", SqlDbType.Int, 0);
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comm.Parameters["@Counts"].Direction = ParameterDirection.Output;
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comm.Parameters.Add("@pageCount", SqlDbType.Int, 0);
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comm.Parameters["@pageCount"].Direction = ParameterDirection.Output;
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_dr = comm.ExecuteReader();
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}
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调用例如:
CutPageData(conn, ref comm, "VOX_CDSinger", "id, cdsinger, cdsingertype, area, cdsingerreadme", 15, page, "id", 1, strFilter, "id", ref dr);
对应说明:
CutPageData(数据连接对象, ref Sqlcommand对象, "需要表或视图名称", "要查询的字段", 每页读取数据条数, 当前页, "排序字段可多字段如(addtime desc, visitcounts注意这里最后一个字段不加desc或asc 最后一个字段对应于后面的排序规则)", 排序方式(1 desc 0 asc), where条件(这里不再添加where条件添加如:' and visitcounts>100'), 表主键, ref 返回的SqlDataReader对象);
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