Plateforme Level Extreme
Abonnement
Profil corporatif
Produits & Services
Support
Légal
English
Surrogate Primary Keys - Integer or Character ?
Message
De
27/07/2000 12:17:34
 
 
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
00397596
Message ID:
00397684
Vues:
20
>< snipped >
>>Someone pointed out that 4 billion records is greater that the 2 gig limit. That's not 2 billion records, but bytes. This DBF size limitation is not likely to change (repeated stated by the Fox team) because it is so deeply entwined inside the C++ code of VFP. It is highly unlikely that you'll have a problem with this.
>>
>
>Thanks, Craig. VFP has a 1 gig limit on records per table (or so the help says).
>

That sort of makes sense - a 1 byte field, with a byte to carry the DELETED() flag, would max out at 1 GB - (size of table header) records, given the 2GB file size limitation. I believe that VFP can work with a table with more records through ODBC, where the physycal table size isn't an issue.

>As for the file size limtiation, you never know. Lotus had a similar limit in their Notes "database" prior to version 4. They totally redesigned the structure because there was such an overwhelming need/demand. As we get further and further away from supporting old legacy systems, the migration might seem natural.
EMail: EdR@edrauh.com
"See, the sun is going down..."
"No, the horizon is moving up!"
- Firesign Theater


NT and Win2K FAQ .. cWashington WSH/ADSI/WMI site
MS WSH site ........... WSH FAQ Site
Wrox Press .............. Win32 Scripting Journal
eSolutions Services, LLC

The Surgeon General has determined that prolonged exposure to the Windows Script Host may be addictive to laboratory mice and codemonkeys
Précédent
Répondre
Fil
Voir

Click here to load this message in the networking platform