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create database DBTestuse DBTest --创建测试表create table pagetest(id int identity(1,1) not null,col01 int null,col02 nvarchar(50) null,col03 datetime null) --1万记录集declare @i intset @i=0while(@i<10000)begin insert into pagetest select cast(floor(rand()*10000) as int),left(newid(),10),getdate() set @i=@i+1end

2.几种典型的分页sql，下面例子是每页50条，198*50=9900，取第199页数据。

--写法1，not in/top

select top 50 * from pagetestwhere id not in (select top 9900 id from pagetest order by id)order by id

--写法2，not exists

select top 50 * from pagetestwhere not exists(select 1 from (select top 9900 id from pagetest order by id)a where a.id=pagetest.id)order by id

--写法3，max/top

select top 50 * from pagetestwhere id>(select max(id) from (select top 9900 id from pagetest order by id)a)order by id

--写法4，row_number()

select top 50 * from(select row_number()over(order by id)rownumber,* from pagetest)awhere rownumber>9900 select * from(select row_number()over(order by id)rownumber,* from pagetest)awhere rownumber>9900 and rownumber<9951 select * from(select row_number()over(order by id)rownumber,* from pagetest)awhere rownumber between 9901 and 9950

--写法5，在csdn上一帖子看到的，row_number() 变体，不基于已有字段产生记录序号，先按条件筛选以及排好序，再在结果集上给一常量列用于产生记录序号

select *from ( select row_number()over(order by tempColumn)rownumber,* from (select top 9950 tempColumn=0,* from pagetest where 1=1 order by id)a)bwhere rownumber>9900

3.分别在1万，10万(取1990页)，100(取19900页）记录集下测试。

测试sql:

declare @begin_date datetimedeclare @end_date datetimeselect @begin_date = getdate()<.....YOUR CODE.....>select @end_date = getdate()select datediff(ms,@begin_date,@end_date) as '毫秒'

1万：基本感觉不到差异。

10万：

4.结论：

1.max/top,ROW_NUMBER()都是比较不错的分页方法。相比ROW_NUMBER()只支持sql2005及以上版本，max/top有更好的可移植性，能同时适用于sql2000,access。

2.not exists感觉是要比not in效率高一点点。

3.ROW_NUMBER()的3种不同写法效率看起来差不多。

4.ROW_NUMBER() 的变体基于我这个测试效率实在不好。原帖在这里 http://topic.csdn.net/u/20100617/04/80d1bd99-2e1c-4083-ad87-72bf706cb536.html

PS.上面的分页排序都是基于自增字段id。测试环境还提供了int,nvarchar,datetime类型字段，也可以试试。不过对于非主键没索引的大数据量排序效率应该是很不理想的。

5.简单将ROWNUMBER,max/top的方式封装到存储过程。

ROWNUMBER():ALTER PROCEDURE [dbo].[Proc_SqlPageByRownumber]( @tbName VARCHAR(255),   --表名 @tbGetFields VARCHAR(1000)= '*',--返回字段 @OrderfldName VARCHAR(255),  --排序的字段名 @PageSize INT=20,    --页尺寸 @PageIndex INT=1,    --页码 @OrderType bit = 0,    --0升序，非0降序 @strWhere VARCHAR(1000)='',  --查询条件 --@TotalCount INT OUTPUT   --返回总记录数)AS-- =============================================-- Author:  allen (liyuxin)-- Create date: 2012-03-30-- Description: 分页存储过程(支持多表连接查询)-- Modify [1]: 2012-03-30-- =============================================BEGIN DECLARE @strSql VARCHAR(5000) --主语句 DECLARE @strSqlCount NVARCHAR(500)--查询记录总数主语句 DECLARE @strOrder VARCHAR(300) -- 排序类型 --------------总记录数--------------- IF ISNULL(@strWhere,'') <>''    SET @strSqlCount='Select @TotalCout=count(*) from ' + @tbName + ' where 1=1 '+ @strWhere ELSE SET @strSqlCount='Select @TotalCout=count(*) from ' + @tbName  --exec sp_executesql @strSqlCount,N'@TotalCout int output',@TotalCount output --------------分页------------ IF @PageIndex <= 0 SET @PageIndex = 1 IF(@OrderType<>0) SET @strOrder=' ORDER BY '+@OrderfldName+' DESC ' ELSE SET @strOrder=' ORDER BY '+@OrderfldName+' ASC ' SET @strSql='SELECT * FROM  (SELECT ROW_NUMBER() OVER('+@strOrder+') RowNo,'+ @tbGetFields+' FROM ' + @tbName + ' WHERE 1=1 ' + @strWhere+' ) tb  WHERE tb.RowNo BETWEEN '+str((@PageIndex-1)*@PageSize+1)+' AND ' +str(@PageIndex*@PageSize) exec(@strSql) SELECT @TotalCountEND

public static SqlParameter MakeInParam(string ParamName, SqlDbType DbType, Int32 Size, object Value)  {   return MakeParam(ParamName, DbType,Size, ParameterDirection.Input, Value);  }  public static SqlParameter MakeOutParam(string ParamName, SqlDbType DbType)  {   return MakeParam(ParamName, DbType, 0, ParameterDirection.Output, null);  }  public static SqlParameter MakeParam(string ParamName, SqlDbType DbType, Int32 Size, ParameterDirection Direction, object Value)  {   SqlParameter param;   if (Size > 0)    param = new SqlParameter(ParamName, DbType, Size);   else    param = new SqlParameter(ParamName, DbType);   param.Direction = Direction;   if (!(Direction == ParameterDirection.Output && Value == null))    param.Value = Value;   return param;  }  /// <summary>  /// 分页获取数据列表及总行数  /// </summary>  /// <param name="tbName">表名</param>  /// <param name="tbGetFields">返回字段</param>  /// <param name="OrderFldName">排序的字段名</param>  /// <param name="PageSize">页尺寸</param>  /// <param name="PageIndex">页码</param>  /// <param name="OrderType">false升序，true降序</param>  /// <param name="strWhere">查询条件</param>  public static DataSet GetPageList(string tbName, string tbGetFields, string OrderFldName, int PageSize, int PageIndex, string strWhere)  {   SqlParameter[] parameters = {      MakeInParam("@tbName",SqlDbType.VarChar,255,tbName),      MakeInParam("@tbGetFields",SqlDbType.VarChar,1000,tbGetFields),       MakeInParam("@OrderfldName",SqlDbType.VarChar,255,OrderFldName),       MakeInParam("@PageSize",SqlDbType.Int,0,PageSize),       MakeInParam("@PageIndex",SqlDbType.Int,0,PageIndex),       MakeInParam("@OrderType",SqlDbType.Bit,0,OrderType),       MakeInParam("@strWhere",SqlDbType.VarChar,1000,strWhere),      // MakeOutParam("@TotalCount",SqlDbType.Int)      };   return RunProcedure("Proc_SqlPageByRownumber", parameters, "ds");  }

调用：

public DataTable GetList(string tbName, string tbGetFields, string OrderFldName, int PageSize, int PageIndex, string strWhere, ref int TotalCount)  {   DataSet ds = dal.GetList(tbName, tbGetFields, OrderFldName, PageSize, PageIndex, strWhere);   TotalCount = Convert.ToInt32(ds.Tables[1].Rows[0][0]);   return ds.Tables[0];  }

注意：多表连接时需注意的地方

1.必填项：tbName，OrderfldName，tbGetFields

2.实例：

tbName =“UserInfo u INNER JOIN Department d ON u.DepID=d.ID”  tbGetFields=“u.ID AS UserID,u.Name,u.Sex,d.ID AS DepID,d.DefName”  OrderfldName=“u.ID,ASC|u.Name,DESC” (格式：Name,ASC|ID,DESC)  strWhere：每个条件前必须添加 AND (例如：AND UserInfo.DepID=1 )

Max/top:(简单写了下，需要满足主键字段名称就是"id")

create proc [dbo].[spSqlPageByMaxTop]@tbName varchar(255),  --表名@tbFields varchar(1000),  --返回字段@PageSize int,    --页尺寸@PageIndex int,    --页码@strWhere varchar(1000), --查询条件@StrOrder varchar(255), --排序条件@Total int output   --返回总记录数asdeclare @strSql varchar(5000) --主语句declare @strSqlCount nvarchar(500)--查询记录总数主语句--------------总记录数---------------if @strWhere !=''beginset @strSqlCount='Select @TotalCout=count(*) from ' + @tbName + ' where '+ @strWhereendelsebeginset @strSqlCount='Select @TotalCout=count(*) from ' + @tbNameend--------------分页------------if @PageIndex <= 0begin set @PageIndex = 1endset @strSql='select top '+str(@PageSize)+' * from ' + @tbName + 'where id>(select max(id) from (select top '+str((@PageIndex-1)*@PageSize)+' id from ' + @tbName + ''+@strOrder+')a)'+@strOrder+''exec sp_executesql @strSqlCount,N'@TotalCout int output',@Total outputexec(@strSql)

园子里搜到Max/top这么一个版本,看起来很强大，http://www.cnblogs.com/hertcloud/archive/2005/12/21/301327.html

调用：

declare @count int--exec [dbo].[spSqlPageByRownumber]'pagetest','*',50,20,'','order by id asc',@count outputexec [dbo].[spSqlPageByMaxTop]'pagetest','*',50,20,'','order by id asc',@count outputselect @count

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