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Section 'Locking Data' in the VFP7 Help
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
Visual FoxPro Documentation de produit
Divers
Thread ID:
00693991
Message ID:
00694221
Vues:
17
>>> (this offset is one of the reasons for the 2 GB limit on file size). <<
>
>2 GB is simply the maximum value of a signed 32 bit integer (2**31). It is a limitation of the FAT file system.
>
>Mike

Mike,

Yes but the reasoin it is still a,.limt on VFP table sis the lock offset that VFP uses which is a 32 byte integer from the actual location so if a vfp table grew beyond the 2 gb barrier then the lock on record one could be hitting the location of another record in the table. When the tables are kept below 2 gb then the locking offset can never hit another record in the table becuase the table cannot grow to size big enough to allow that.

This is not a guess on my part but information I learned from the VFP developers.
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