🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: cn.bbs.comp.database
Article #1835

����foxpro�ij���˭�����ҿ���

#1835
From: ��������
Date: Thu, 13 Oct 2005 08:00
28 lines
2904 bytes
�ļ�newsa.dbf��newsb.dbf������ͬ�Ľṹ�����ֶ��У�newsp(������ƣ��ַ���),price�����ۣ���ֵ�ͣ���newsa��newsp�Ͻ��������ļ�newsa.idx��newsb��newsp�Ͻ��������ļ�newsb.idx����������Ĺ����ǣ�������newsa.dbf���ֵ�����newsb.dbf�г��ֵı�����ơ�
set talk off
seletc b
use newsb alias new index newsb
select a
use newsa alias old index newsa
do while .not. eof("old") .or. .not. eof("new")
        do case
                case eof("new") .or. .not. eof("old") .and. newsp<new->newsp
                        ?newsp
                        skip old
                case eof("old") .or. .not. eof("new") .and. newsp>new->newsp
                        skip in new
                other
                        ship
                        skip in new
        endcase
enddo
clear all
return


�һ���û��Ū������θ�ݽ����������ļ��е��������Ƚϴ�С��Ҳ���� newsp<new->newsp��newsp>new->newsp����֪��Ӧ����ô��⣬��֪��˭�������һ�¡�^_^ 
--
����˼���ڳ�������γ���������΢˪������ɫ�����µƲ���˼��������¿ճ�̾�������绨���ƶˣ�������ڤ֮���졣������ˮ֮�������쳤��Զ��ɿ࣬�λ겻����ɽ�ѡ�����˼�����ĸΡ���ɫ�����̣��������س�ߡ���ɪ��ͣ�������������ԧ���ҡ������������˴���Ը�洺�����Ȼ��������������죬��ʱ�ᲨĿ����������Ȫ������檳��ϣ�������ȡ����ǰ��


�� ��Դ:��BBS_����˼��վ lzusiyu.org��[FROM: 202.201.12.*]
Technical Details
Message-ID: <4KYJYC$cWy@siyu.cn-bbs.org>
Path: arc1-ca.pugleaf.net!g2news1.google.com!news3.google.com!news.glorb.com!feeder.xsnews.nl!83.128.0.11.MISMATCH!news-out1.kabelfoon.nl!newsfeed.kabelfoon.nl!xindi.nntp.kabelfoon.nl!202.194.15.150.MISMATCH!bbsnews.sdu.edu.cn!news.xjtu.edu.cn!Siyu

Show Full Headers
Complete Article Headers
X-Google-Thread: 101948,67972b2a4ddd6b,start
X-Google-Attributes: gid101948,public
X-Google-Language: Chinese,GB
Path: arc1-ca.pugleaf.net!g2news1.google.com!news3.google.com!news.glorb.com!feeder.xsnews.nl!83.128.0.11.MISMATCH!news-out1.kabelfoon.nl!newsfeed.kabelfoon.nl!xindi.nntp.kabelfoon.nl!202.194.15.150.MISMATCH!bbsnews.sdu.edu.cn!news.xjtu.edu.cn!Siyu
From: luckywlj@lzusiyu.org-SPAM.no (��������)
Newsgroups: cn.bbs.comp.database
Subject: ����foxpro�ij���˭�����ҿ���
Date: 13 Oct 2005 08:00:59 GMT
Organization: BBS_����˼��վ
Message-ID: <4KYJYC$cWy@siyu.cn-bbs.org>
Mime-Version: 1.0
Content-Type: text/plain; charset="gb2312"
Content-Transfer-Encoding: 8bit
X-Filename: Database/M.1129189740.B0