/*--用存儲過程實現的分頁程序顯示指定表、視圖、查詢結果的第x頁對于表中主鍵或標識列的情況,直接從原表取數查詢，其它情況使用臨時表的方法如果視圖或查詢結果中有主鍵,不推薦此方法--鄒建 2003.09--*//*--調用示例exec p_show '地區資料'exec p_show '地區資料',5,3,'地區編號,地區名稱,助記碼','地區編號'--*//*因為要顧及通用性,所以對帶排序的查詢語句有一定要求.如果先排序,再出結果.就是:exec p_show 'select top 100 percent * from 地區資料 order by 地區名稱',5,3,'地區編號,地區名稱,助記碼','地區名稱'--查詢語句加上:top 100 percent //top時*/if exists (select * from dbo.sysobjects where id = object_id(n'[dbo].[p_show]') and objectproperty(id, n'isprocedure') = 1)drop procedure [dbo].[p_show]gocreate proc [email protected]ystr nvarchar(4000),--表名、視圖名、查詢語句@pagesize int=10,--每頁的大小(行數)@pagecurrent int=1,--要顯示的頁@fdshow nvarchar (4000)='',--要顯示的字段列表,如果查詢結果有標識字段,需要指定此值,且不包含標識字段@fdorder nvarchar (1000)=''--排序字段列表asdeclare @fdname nvarchar(250)--表中的主鍵或表、臨時表中的標識列名,@id1 varchar(20),@id2 varchar(20)--開始和結束的記錄號,@obj_id int--對象id--表中有復合主鍵的處理declare @strfd nvarchar(2000)--復合主鍵列表,@strjoin nvarchar(4000)--連接字段,@strwhere nvarchar(2000)--查詢條件select @obj_id=object_id(@querystr),@fdshow=case isnull(@fdshow,'') when '' then ' *' else ' '[email protected] end,@fdorder=case isnull(@fdorder,'') when '' then '' else ' order by '[email protected] end,@querystr=case when @obj_id is not null then ' '[email protected] else ' ('[email protected]+') a' end--如果顯示第一頁，可以直接用top來完成if @pagecurrent=1beginselect @id1=cast(@pagesize as varchar(20))exec('select top '[email protected][email protected]+' from '[email protected][email protected])returnend--如果是表,則檢查表中是否有標識更或主鍵if @obj_id is not null and objectproperty(@obj_id,'istable')=1beginselect @id1=cast(@pagesize as varchar(20)),@id2=cast((@pagecurrent-1)*@pagesize as varchar(20))select @fdname=name from syscolumns where [email protected]_id and status=0x80if @@rowcount=0--如果表中無標識列,則檢查表中是否有主鍵beginif not exists(select 1 from sysobjects where [email protected]_id and xtype='pk')goto lbusetemp--如果表中無主鍵,則用臨時表處理select @fdname=name from syscolumns where [email protected]_id and colid in(select colid from sysindexkeys where @obj_id=id and indid in(select indid from sysindexes where @obj_id=id and name in(select name from sysobjects where xtype='pk' and [email protected]_id)))if @@rowcount>1--檢查表中的主鍵是否為復合主鍵beginselect @strfd='',@strjoin='',@strwhere=''select @[email protected]+',['+name+']',@[email protected]+' and a.['+name+']=b.['+name+']',@[email protected]+' and b.['+name+'] is null'from syscolumns where [email protected]_id and colid in(select colid from sysindexkeys where @obj_id=id and indid in(select indid from sysindexes where @obj_id=id and name in(select name from sysobjects where xtype='pk' and [email protected]_id)))select @strfd=substring(@strfd,2,2000),@strjoin=substring(@strjoin,5,4000),@strwhere=substring(@strwhere,5,4000)goto lbusepkendendendelsegoto lbusetemp/*--使用標識列或主鍵為單一字段的處理方法--*/lbuseidentity:exec('select top '[email protected][email protected]+' from '[email protected]+' where '[email protected]+' not in(select top '[email protected]+' '[email protected]+' from '[email protected][email protected]+')'[email protected])return/*--表中有復合主鍵的處理方法--*/lbusepk:exec('select '[email protected]+' from(select top '[email protected]+' a.* from(select top 100 percent * from '[email protected][email protected]+') aleft join (select top '[email protected]+' '[email protected]+' from '[email protected][email protected]+') b on '[email protected]+'where '[email protected]+') a')return/*--用臨時表處理的方法--*/lbusetemp:select @fdname='[id_'+cast(newid() as varchar(40))+']',@id1=cast(@pagesize*(@pagecurrent-1) as varchar(20)),@id2=cast(@pagesize*@pagecurrent-1 as varchar(20))exec('select '[email protected]+'=identity(int,0,1),'[email protected]+'into #tb from'[email protected][email protected]+'select '[email protected]+' from #tb where '[email protected]+' between '[email protected]+' and '[email protected])go
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