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Swapping Values in Two Columns
Message
De
03/09/2013 08:57:00
 
 
À
03/09/2013 08:50:47
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Versions des environnements
Visual FoxPro:
VFP 9 SP2
OS:
Windows 8
Network:
Windows 2000 Server
Database:
Visual FoxPro
Application:
Desktop
Divers
Thread ID:
01581882
Message ID:
01581886
Vues:
47
>>I'm trying to switch the values from two columns. Here's my code:
>>
>>
update Items;
>>   SET cDesc = cIntDesc ;
>>   , cIntDesc = cDesc
>>
>>This is a VFP database.
>>
>>Shouldn't that work?
>>
>>What is happening is that both columns get the original value that was in cIntDesc.
>
>That's what I'd expect. This is the same as if you'd written:
>
>
>x=y
>y=x
>
>
>The changes have to occur in some order. You'll have to use a variable to hold one value temporarily.
>
>Tamar

I understand. I just had a very strong memory of using code like this before. Maybe it was on a SQL Server database which apparently allows you to do this.
Frank.

Frank Cazabon
Samaan Systems Ltd.
www.samaansystems.com
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