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Cursor
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Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Titre:
Re: Cursor
Versions des environnements
Visual FoxPro:
VFP 9 SP2
OS:
Windows Server 2012
Network:
Windows 2008 Server
Database:
MS SQL Server
Application:
Web
Divers
Thread ID:
01591784
Message ID:
01591786
Vues:
111
This message has been marked as the solution to the initial question of the thread.
>I want to create a text file that displays all email lists from 4 different dbf files. there are many duplications so I wanted to eliminate email duplicates from the other database files. I thought perhaps creating a cursor would be the way to go.
>I have not used cursor in my programming and would like to give it a try if you thought it might be the way to go here. This attempt failed, Can someone please assist and send me on my way to part two. thanks so much
>k
>
>CREATE CURSOR email ;
> (email c(40))
> 
>Use mydbf1
>go top
>do while not eof()
>m_email=rtrim(email)+';'
>INSERT INTO email;
>   VALUES m_email
> skip
> loop
> enddo
>BROWSE
>
So, try
CREATE CURSOR email (email C(40))
INSERT INTO Email (Email)
select email from myDbf1 ;
UNION ;
SELECT email from myDBF2;
UNION ;
SELECT email from myDBF3;
UNION ;
SELECT email from myDBF4
UNION eliminates duplicates so the resulting cursor will have all unique emails from your 4 DBFs.
If it's not broken, fix it until it is.


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