毫秒级百万数据分页存储过程

/****** Object:  StoredProcedure [dbo].[up_Page2005]    Script Date: 11/28/2013 17:10:47 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

CREATE PROC [dbo].[up_Page2005]
(
@TableName VARCHAR(MAX) ,        --表名
@Fields VARCHAR(5000) = ''*'' ,    --字段名(全部字段为*)
@OrderField VARCHAR(5000) ,        --排序字段(必须!支持多字段)
@sqlWhere VARCHAR(5000) = NULL ,--条件语句(不用加where)
@pageSize INT ,                    --每页多少条记录
@pageIndex INT = 1             --指定当前为第几页
)
AS
BEGIN
DECLARE @sql NVARCHAR(MAX);
DECLARE @totalRecord INT;
DECLARE @TotalPage INT;

--计算总记录数
IF ( @SqlWhere = ''''
OR @sqlWhere = NULL
)
SET @sql = ''select @totalRecord = count(*) from '' + @TableName
ELSE
SET @sql = ''select @totalRecord = count(*) from '' + @TableName
+ '' where 1=1 '' + @sqlWhere

EXEC sp_executesql @sql, N''@totalRecord int OUTPUT'',
@totalRecord OUTPUT--计算总记录数

--计算总页数
SELECT  @TotalPage = CEILING(( @totalRecord + 0.0 ) / @PageSize)

IF ( @SqlWhere = ''''
OR @sqlWhere = NULL
)
SET @sql = ''Select top ('' + CONVERT(VARCHAR, @pageSize) + '') ''
+ @Fields + '' FROM (select ROW_NUMBER() Over(order by ''
+ @OrderField + '') as 编号,'' + @Fields + '' from '' + @TableName
ELSE
SET @sql = ''Select top ('' + CONVERT(VARCHAR, @pageSize) + '') ''
+ @Fields + '' FROM (select ROW_NUMBER() Over(order by ''
+ @OrderField + '') as 编号,'' + @Fields + '' from '' + @TableName
+ '' where 1=1 '' + @SqlWhere

--处理页数超出范围情况
IF @PageIndex <= 0
SET @pageIndex = 1

IF @pageIndex > @TotalPage
SET @pageIndex = @TotalPage

--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 @Sql = @Sql + '') as t where 编号>='' + CONVERT(VARCHAR, @StartRecord)
+ '' order by 编号''
EXEC(@Sql)
IF @@Error <> 0
RETURN -1
ELSE
SELECT  @totalRecord ,
@TotalPage ---返回记录总数,返回总页数
END