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分页时用到的sql语句

2014-06-11 21:15 218 查看
带条件的分页查询
<pre name="code" class="sql">select top 6 结束行
from 表名
where 姓='王'
and (id not in(select top 起始行 id from 表名 where 姓='王' order by id))
<pre name="code" class="sql">/*--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(引用请保留此信息)--*//*--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'--*/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=1beginselect @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')=1beginselect @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=0x80if @@rowcount=0   --如果表中无标识列,则检查表中是否有主键beginif 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beginselect @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 lbusepkendendendelsegoto 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+') aleft 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
邹建的存储过程ALTER PROC PageView@tbname     sysname,           --要分页显示的表名@FieldKey   sysname,           --用于定位记录的主键(惟一键)字段,只能是单个字段@PageCurrent int=1,             --要显示的页码@PageSize   int=10,            --每页的大小(记录数)@FieldShow  nvarchar(1000)='',  --以逗号分隔的要显示的字段列表,如果不指定,则显示所有字段@FieldOrder  nvarchar(1000)='', --以逗号分隔的排序字段列表,可以指定在字段后面指定DESC/ASC--用于指定排序顺序@Where     nvarchar(1000)='',  --查询条件@PageCount  int OUTPUT        --总页数ASDECLARE @sql nvarchar(4000)SET NOCOUNT ON--检查对象是否有效IF OBJECT_ID(@tbname) IS NULLBEGINRAISERROR(N'对象"%s"不存在',1,16,@tbname)RETURNENDIF OBJECTPROPERTY(OBJECT_ID(@tbname),N'IsTable')=0AND OBJECTPROPERTY(OBJECT_ID(@tbname),N'IsView')=0AND OBJECTPROPERTY(OBJECT_ID(@tbname),N'IsTableFunction')=0BEGINRAISERROR(N'"%s"不是表、视图或者表值函数',1,16,@tbname)RETURNEND--分页字段检查IF ISNULL(@FieldKey,N'')=''BEGINRAISERROR(N'分页处理需要主键(或者惟一键)',1,16)RETURNEND--其他参数检查及规范IF ISNULL(@PageCurrent,0)<1 SET @PageCurrent=1IF ISNULL(@PageSize,0)<1 SET @PageSize=10IF ISNULL(@FieldShow,N'')=N'' SET @FieldShow=N'*'IF ISNULL(@FieldOrder,N'')=N''SET @FieldOrder=N''ELSESET @FieldOrder=N'ORDER BY '+LTRIM(@FieldOrder)IF ISNULL(@Where,N'')=N''SET @Where=N''ELSESET @Where=N'WHERE ('+@Where+N')'--如果@PageCount为NULL值,则计算总页数(这样设计可以只在第一次计算总页数,以后调用时,把总页数传回给存储过程,避免再次计算总页数,对于不想计算总页数的处理而言,可以给@PageCount赋值)IF @PageCount IS NULLBEGINSET @sql=N'SELECT @PageCount=COUNT(*)'+N' FROM '+@tbname+N' '+@WhereEXEC sp_executesql @sql,N'@PageCount int OUTPUT',@PageCount OUTPUTSET @PageCount=(@PageCount+@PageSize-1)/@PageSizeEND--计算分页显示的TOPN值DECLARE @TopN varchar(20),@TopN1 varchar(20)SELECT @TopN=@PageSize,@TopN1=@PageCurrent*@PageSize--第一页直接显示IF @PageCurrent=1EXEC(N'SELECT TOP '+@TopN+N' '+@FieldShow+N' FROM '+@tbname+N' '+@Where+N' '+@FieldOrder)ELSEBEGINSELECT @PageCurrent=@TopN1,@sql=N'SELECT @n=@n-1,@s=CASE WHEN @n<'+@TopN+N' THEN @s+N'',''+QUOTENAME(RTRIM(CAST('+@FieldKey+N' as varchar(8000))),N'''''''') ELSE N'''' END FROM '+@tbname+N' '+@Where+N' '+@FieldOrderSET ROWCOUNT @PageCurrentEXEC sp_executesql @sql,N'@n int,@s nvarchar(4000) OUTPUT',@PageCurrent,@sql OUTPUTSET ROWCOUNT 0IF @sql=N''EXEC(N'SELECT TOP 0'+N' '+@FieldShow+N' FROM '+@tbname)ELSEBEGINSET @sql=STUFF(@sql,1,1,N'')--执行查询EXEC(N'SELECT TOP '+@TopN+N' '+@FieldShow+N' FROM '+@tbname+N' WHERE '+@FieldKey+N' IN('+@sql+N') '+@FieldOrder)ENDEN

                                            
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