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Using Table Buffering
Message
De
04/10/2001 09:03:03
Keith Payne
Technical Marketing Solutions
Floride, États-Unis
 
 
À
03/10/2001 15:17:37
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00563798
Message ID:
00564081
Vues:
18
>Another thing I noticed related to buffering is that a SEEK for a record which has been added but not committed will return TRUE...however, a SQL - SELECT for the same condition will not return any records.
>
>Can someone explain the reasoning behind this so I can better understand why\when to use buffering? I'm trying to eliminate using memory variables or copying records when there's a possibility of reverting changes, but need to do calculations utilizing SQL statements on uncommitted data as well.
>
>Thanks - Victor

SELECT - SQL opens the FROM tables separatelt, whether they are open already or not. It's the same as another user on the network trying to access the data in the buffers.

- Keith
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