分页 SQLServer存储过程

/*--用存储过程实现的分页程序 显示指定表、视图、查询结果的第X页 对于表中主键或标识列的情况,直接从原表取数查询，其它情况使用临时表的方法 如果视图或查询结果中有主键,不推荐此方法--邹建 2003.09--*//*--调用示例 exec p_show @#地区资料@# exec p_show @#地区资料@#,5,3,@#地区编号,地区名称,助记码@#,@#地区编号@#--*//*因为要顾及通用性,所以对带排序的查询语句有一定要求.如果先排序,再出结果.就是:exec p_show @#select top 100 percent * from 地区资料 order by 地区名称@#,5,3,@#地区编号,地区名称,助记码@#,@#地区名称@#--查询语句加上:top 100 percent //top时*/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 p_show@QueryStr nvarchar(4000), --表名、视图名、查询语句@PageSize int=10, --每页的大小(行数)@PageCurrent int=1, --要显示的页@FdShow nvarchar (4000)=@#@#, --要显示的字段列表,如果查询结果有标识字段,需要指定此值,且不包含标识字段@FdOrder nvarchar (1000)=@#@# --排序字段列表asdeclare @FdName nvarchar(250) --表中的主键或表、临时表中的标识列名 ,@Id1 varchar(20),@Id2 varchar(20) --开始和结束的记录号 ,@Obj_ID int --对象ID--表中有复合主键的处理declare @strfd nvarchar(2000) --复合主键列表 ,@strjoin nvarchar(4000) --连接字段 ,@strwhere nvarchar(2000) --查询条件select @Obj_ID=object_id(@QueryStr) ,@FdShow=case isnull(@FdShow,@#@#) when @#@# then @# *@# else @# @#+@FdShow end ,@FdOrder=case isnull(@FdOrder,@#@#) when @#@# then @#@# else @# order by @#+@FdOrder end ,@QueryStr=case when @Obj_ID is not null then @# @#+@QueryStr else @# (@#+@QueryStr+@#) a@# end--如果显示第一页，可以直接用top来完成if @PageCurrent=1 begin select @Id1=cast(@PageSize as varchar(20)) exec(@#select top @#+@Id1+@FdShow+@# from @#+@QueryStr+@FdOrder) returnend--如果是表,则检查表中是否有标识更或主键if @Obj_ID is not null and objectproperty(@Obj_ID,@#IsTable@#)=1begin select @Id1=cast(@PageSize as varchar(20)) ,@Id2=cast((@PageCurrent-1)*@PageSize as varchar(20)) select @FdName=name from syscolumns where id=@Obj_ID and status=0x80 if @@rowcount=0 --如果表中无标识列,则检查表中是否有主键 begin if not exists(select 1 from sysobjects where parent_obj=@Obj_ID and xtype=@#PK@#) goto lbusetemp --如果表中无主键,则用临时表处理 select @FdName=name from syscolumns where id=@Obj_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 parent_obj=@Obj_ID ))) if @@rowcount>1 --检查表中的主键是否为复合主键 begin select @strfd=@#@#,@strjoin=@#@#,@strwhere=@#@# select @strfd=@strfd+@#,[@#+name+@#]@# ,@strjoin=@strjoin+@# and a.[@#+name+@#]=b.[@#+name+@#]@# ,@strwhere=@strwhere+@# and b.[@#+name+@#] is null@# from syscolumns where id=@Obj_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 parent_obj=@Obj_ID ))) select @strfd=substring(@strfd,2,2000) ,@strjoin=substring(@strjoin,5,4000) ,@strwhere=substring(@strwhere,5,4000) goto lbusepk end endendelse goto lbusetemp/*--使用标识列或主键为单一字段的处理方法--*/lbuseidentity: exec(@#select top @#+@Id1+@FdShow+@# from @#+@QueryStr +@# where @#+@FdName+@# not in(select top @# +@Id2+@# @#+@FdName+@# from @#+@QueryStr+@FdOrder +@#)@#+@FdOrder ) return/*--表中有复合主键的处理方法--*/lbusepk: exec(@#select @#+@FdShow+@# from(select top @#+@Id1+@# a.* from (select top 100 percent * from @#+@QueryStr+@FdOrder+@#) a left join (select top @#+@Id2+@# @#+@strfd+@# from @#+@QueryStr+@FdOrder+@#) b on @#+@strjoin+@# where @#+@strwhere+@#) a@# ) return/*--用临时表处理的方法--*/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 @#+@FdName+@#=identity(int,0,1),@#+@FdShow+@# into #tb from@#+@QueryStr+@FdOrder+@# select @#+@FdShow+@# from #tb where @#+@FdName+@# between @# +@Id1+@# and @#+@Id2 )GO

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