求救，SQL SERVER数据导入DBF表中！！！

Michael_V 2005-08-04 01:52:26

求救`在调用下面的存储过程来从SQL SERVER中取得数据写到一个新生成的 DBF表中的的时候
如果 p_exporttb @sqlstr='select PrecinctID as 编号,PrecinctName as 名字 from Precinct',@path='c:\',@over=1
在查询分析器中执行就没有问题，但是在ASP或者VB中用下面两种方法都有问题呢？
1，Set cm = Server.CreateObject("ADODB.Command")
Set cm.ActiveConnection = cn
cm.CommandText = "p_exporttb"
cm.Prepared = True
cm.commandtype=4
cm.Parameters.Append cm.CreateParameter("ReturnValue", adInteger, adParamReturnValue)
cm.Parameters.Append cm.CreateParameter("sqlstr",adVarChar, adParamInput, 200, sqlstr)
cm.Parameters.Append cm.CreateParameter("path", adVarChar, adParamInput, 20,path)
cm.Parameters.Append cm.CreateParameter("fname",adVarChar, adParamInput, 20,fname)
cm.Parameters.Append cm.CreateParameter("over",adTinyInt,adParamInput,1,over)
cm.Execute
这样执行根本什么都不产生`也不报错的？？！！
2，set cn = server.CreateObject("ADODB.Connection")
cn.Open strConString,strUserName ,strPassWord
cn.Execute "EXEC p_exporttb 'select PrecinctID as ID,PrecinctName as Name from Precinct','c:\','baa.dbf',1"
这样能生成DBF表`但是只有表结构，其中并没有数据的？？！！

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[p_exporttb]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[p_exporttb]
GO

create proc p_exporttb
@sqlstr varchar(8000), --要导出的查询名
@path nvarchar(1000), --文件存放目录
@fname nvarchar(250)='temp.dbf',--文件名,默认为temp
@over bit=0 --是否覆盖已经存在的文件,如果不覆盖,则直接追加
as
declare @err int,@src nvarchar(255),@desc nvarchar(255),@out int
declare @obj int,@constr nvarchar(1000),@sql varchar(8000),@fdlist varchar(8000)

--参数检测
if isnull(@fname,'')='' set @fname='temp.dbf'

--检查文件是否已经存在
if right(@path,1)<>'\' set @path=@path+'\'
create table #tb(a bit,b bit,c bit)
set @sql=@path+@fname
insert into #tb exec master..xp_fileexist @sql
if exists(select 1 from #tb where a=1)
if @over=1
begin
set @sql='del '+@sql
exec master..xp_cmdshell @sql,no_output
end
else
set @over=0
else
set @over=1

--数据库创建语句
set @sql=@path+@fname
set @constr='Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties="dBASE 5.0;'
+';HDR=NO;DATABASE='+@path+'"'

--创建表的SQL
declare @tbname sysname
set @tbname='##tmp_'+convert(varchar(38),newid())
set @sql='select * into ['+@tbname+'] from('+@sqlstr+') a'
exec(@sql)

--连接数据库
exec @err=sp_oacreate 'adodb.connection',@obj out
if @err<>0 goto lberr

exec @err=sp_oamethod @obj,'open',null,@constr
if @err<>0 goto lberr

--创建表的SQL
select @sql='',@fdlist=''
select @fdlist=@fdlist+','+a.name
,@sql=@sql+',['+a.name+'] '
+case when b.name in('char','nchar','varchar','nvarchar') then
'text('+cast(case when a.length>250 then 250 else a.length end as varchar)+')'
when b.name in('tynyint','int','bigint','tinyint') then 'int'
when b.name in('smalldatetime','datetime') then 'datetime'
when b.name in('money','smallmoney') then 'money'
else b.name end
FROM tempdb..syscolumns a left join tempdb..systypes b on a.xtype=b.xusertype
where b.name not in('image','text','uniqueidentifier','sql_variant','ntext','varbinary','binary','timestamp')
and a.id=(select id from tempdb..sysobjects where name=@tbname)
select @sql='create table ['+@fname
+']('+substring(@sql,2,8000)+')'
,@fdlist=substring(@fdlist,2,8000)

if @over=1
begin
exec @err=sp_oamethod @obj,'execute',@out out,@sql
if @err<>0 goto lberr
end

exec @err=sp_oadestroy @obj

set @sql='openrowset(''MICROSOFT.JET.OLEDB.4.0'',''dBase 5.0;DATABASE='
+@path+''',''select * from ['+@fname+']'')'

--导入数据
exec('insert into '+@sql+'('+@fdlist+') select '+@fdlist+' from ['+@tbname+']')

set @sql='drop table ['+@tbname+']'
exec(@sql)

return

lberr:
exec sp_oageterrorinfo 0,@src out,@desc out
lbexit:
select cast(@err as varbinary(4)) as 错误号
,@src as 错误源,@desc as 错误描述
select @sql,@constr,@fdlist
go

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