代码如下:
alter PROCEDURE [dbo].[PageList]
@tablename nvarchar(50),
@fieldname nvarchar(100)='*',
@pagesize int,--每页显示记录条数
@currentpage int,--第几页
@orderid nvarchar(50),--主键排序
@sort int,--排序方式,1表示升序,0表示降序排列
@rowcount int output,--总记录数,共有几条信息
@pagecount int output,--总页数,共有多少页
@UserID int,
@IsSolve bit,
@ErrorType nvarchar(20)
AS
declare @countsql nvarchar(50)
declare @sql nvarchar(500)
declare @subsql nvarchar(200)--not in子sql语句
declare @tmpOrderid nvarchar(50)
--返回总记录数,[email protected]
set @countsql='select @totalcount=count(*) from [email protected]+' where UserID='+CONVERT(nvarchar,@UserID)+' and [email protected]'
exec sp_executesql @countsql,[email protected] int out,@IsSolve bit',@[email protected] output,@[email protected]
--判断字段名是否为空
if @fieldname is null or @fieldname=''
set @fieldname=' * '
--判断是否排序及排序方式
if @orderid is null or @orderid=''
set @tmpOrderid=' '
else
begin
if @sort=0
set @tmpOrderid='order by [email protected]+' desc'
else
set @tmpOrderid='order by [email protected]+' asc'
end
--计算页数
if @[email protected]>0
set @pagecount =(@[email protected])+1;
else
set @[email protected][email protected];
--分页算法实现
set @subsql='select top'+str(@pagesize*(@currentpage-1))[email protected]+' from [email protected]+' where UserID='+CONVERT(nvarchar,@UserID)+' and [email protected] and ErrorType=''"[email protected]+'"[email protected]
set @sql='select top'+str(@pagesize)[email protected]+' from [email protected]+' where [email protected]+' not in ([email protected]+') and UserID='+CONVERT(nvarchar,@UserID)+' and [email protected] and [email protected]+''' [email protected]
exec sp_executesql @sql,[email protected] bit',@[email protected]
asp页面调用之后,提示where后面有语法错误, 经过测试分页算法实现这部分没有错误,是前面返回总记录数那里出错,方法都是一样,不知道为什么会错误。
请广大网友帮忙出个主意,我这个分页存储过程要不要把它掰成两半写,因为得到总记录数的话,执行一次就可以了。
要不要在前台调用的时候调用两次数据库,一次是执行总记录查询,一次是进行数据查询,等分页的时候,就可以不用再进行总记录查询了。异或是在这个存储过程中加个开关变量,来确定时候执行总记录查询
------解决方案--------------------
- SQL code
SQL2000时用这个/*--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 ' [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 [email protected][email protected]+' from [email protected][email protected]) 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)[email protected] as varchar(20)) select @FdName=name from syscolumns where [email protected]_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 [email protected]_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 [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 --检查表中的主键是否为复合主键 begin select @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 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 [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/*--表中有复合主键的处理方法--*/lbusepk: exec('select [email protected]+' from(select top [email protected]+' a.* from (select top 100 percent * from [email protected][email protected]+') a left join (select top [email protected]+' [email protected]+' from [email protected][email protected]+') b on [email protected]+' where [email protected]+') 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(@[email protected] as varchar(20))exec('select [email protected]+'=identity(int,0,1),[email protected]+' into #tb [email protected][email protected]+' select [email protected]+' from #tb where [email protected]+' between ' [email protected]+' and [email protected] )GO