MS SQL SERVER2005 分页存储过程

alter PROCEDURE [dbo].[PR_PageDivide]
(
 @TableName varchar(50), --表名
 @SelectField varchar(200) = '*', --字段名(全部字段为*)
 @OrderString varchar(200), --排序字段(必须!支持多字段不用加order by)
 @WhereString varchar(500) =N'', --条件语句(不用加where)
 @PageSize int = 15, --每页多少条记录
 @PageIndex int = 1 , --指定当前为第几页
 @TotalPages int output --返回总页数
)
AS
 
BEGIN 
 if @PageIndex<=0
 set @PageIndex=1
 if @PageSize<0
 set @PageSize=15
 --处理开始点和结束点
 Declare @TotalRecord int
 Declare @StartRecord int;
 Declare @EndRecord int; 
 Declare @TotalCountSql nvarchar(500); 
 Declare @SqlString nvarchar(2000); 
 set @StartRecord = (@PageIndex-1)*@PageSize + 1
 set @EndRecord = @StartRecord + @PageSize - 1 
 SET @TotalCountSql= N'select @TotalRecord = count(*) from ' + @TableName;--总记录数语句
 SET @SqlString = N'(select row_number() over (order by '+ @OrderString +') as rowId,'+@SelectField+' from '+ @TableName;--查询语句
 --
 IF (@WhereString! = '' or @WhereString!=null)
 BEGIN
 SET @TotalCountSql=@TotalCountSql + ' where '+ @WhereString;
 SET @SqlString =@SqlString+ ' where '+ @WhereString; 
 END
 EXEC sp_executesql @totalCountSql,N'@TotalRecord int out',@TotalRecord output;--返回总记录数
select @TotalPages=CEILING((@TotalRecord+0.0)/@PageSize)
 set @SqlString ='select * from ' + @SqlString + ') as t where rowId between ' + ltrim(str(@StartRecord)) + ' and ' + ltrim(str(@EndRecord));
 Exec(@SqlString) 
END