Sql分页存储过程

//分页存储过程
//可根据需求在此存储过程上进行扩展
//该存储过程未返回总页数
create proc PagerManager
@pageindex int,
@pagesize int,
@tablename varchar(100),
@orderbycol varchar(100)
as
begin

  declare @sqlstr varchar(8000)
  declare @beginindex int 
  declare @endindex int
  
  set @beginindex = (@pageindex-1)*@pagesize+1
  set @endindex = @pageindex*@pagesize

  print @pagecount
  set @sqlstr='select * from
				(
				   select *,ROW_NUMBER()over (order by '+@orderbycol+') as RowNum from '+@tablename+'
				) as b
			   where RowNum between '+cast(@beginindex as varchar(10))+' and '+cast(@endindex as varchar(10))
			   
  exec(@sqlstr)
end