最牛叉的分页存储过程

 

DECLARE @pagenum AS INT, @pagesize AS INT 

SET @pagenum = 2 

SET @pagesize = 3 

SELECT * 

FROM (SELECT ROW_NUMBER() OVER(ORDER BY newsid DESC) AS rownum,  

        newsid, topic, ntime, hits 

      FROM news) AS D 

WHERE rownum BETWEEN (@pagenum-1)*@pagesize+1 AND @pagenum*@pagesize 

ORDER BY newsid DESC 





--aspx里?面?只?需?给?SQL传?入?pageid和?条?数?即?可?。?



--CSDN上?还?有?个?存?储?过?程?实?现?分?页?的?代?码?：?



ALTER PROCEDURE news_Showlist 

( 

@tblName   varchar(255),       -- 表?名?

@strGetFields varchar(1000),  -- 需?要?返?回?的?列?

@fldName varchar(255),      -- 排?序?的?字?段?名?

@PageSize   int ,          -- 页?尺?寸?





@PageIndex  int ,           -- 页?码?

@strWhere  varchar(1500),  -- 查?询?条?件?(注?意?: 不?要?加?where) 

@Sort varchar(255)      --排?序?的?方?法?



) 

AS 

declare @strSQL   varchar(5000)       -- 主?语?句?

declare @strTmp   varchar(110)        -- 临?时?变?量?

declare @strOrder varchar(400)        -- 排?序?类?型?



  



if @Sort = ’?desc’?

begin 

set @strTmp = ’?<(select min’?

set @strOrder = ’?order by ’?+ @fldName +’?desc’?

--如?果?@OrderType不?是?，?就?执?行?降?序?，?这?句?很?重?要?！?

end 

else 

begin 

set @strTmp = ’?>(select max’?

set @strOrder = ’?order by ’?+ @fldName +’?asc’?



end 

  

if @PageIndex = 1 

begin 

if @strWhere != ’?’?   

  begin 

set @strSQL = ’?select top ’?+ str(@PageSize) +’?’?+@strGetFields+ ’? from ’?+ @tblName + ’?where ’?+ @strWhere + ’?’?+ @strOrder 

  end 

else 

  begin 

set @strSQL = ’?select top ’?+ str(@PageSize) +’?’?+@strGetFields+ ’? from ’?+ @tblName + ’?’?+ @strOrder 

  end 

--如?果?是?第?一?页?就?执?行?以?上?代?码?，?这?样?会?加?快?执?行?速?度?

end 

else 

begin 

--以?下?代?码?赋?予?了?@strSQL以?真?正?执?行?的?SQL代?码?

set @strSQL = ’?select top ’?+ str(@PageSize) +’?’?+@strGetFields+ ’? from ’?

+ @tblName + ’?where ’?+ @fldName + ’?’?+ @strTmp + ’?(’?+ @fldName + ’?) from (select top ’?+ str((@PageIndex-1)*@PageSize) + ’?’?+ @fldName + ’?from ’?+ @tblName + ’?’?+ @strOrder + ’?) as tblTmp)’?+ @strOrder 



  

if @strWhere != ’?’?

set @strSQL = ’?select top ’?+ str(@PageSize) +’?’?+@strGetFields+ ’? from ’?

+ @tblName + ’?where ’?+ @fldName + ’?’?+ @strTmp + ’?(’?

+ @fldName + ’?) from (select top ’?+ str((@PageIndex-1)*@PageSize) + ’?’?

+ @fldName + ’?from ’?+ @tblName + ’?where ’?+ @strWhere + ’?’?

+ @strOrder + ’?) as tblTmp) and ’?+ @strWhere + ’?’?+ @strOrder 

end 

exec (@strSQL) 

RETURN