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A question about the 'inner workings' of VFP tables.
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06/08/2000 21:38:15
 
 
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Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Titre:
A question about the 'inner workings' of VFP tables.
Divers
Thread ID:
00401711
Message ID:
00401711
Vues:
67
Hi, all...

A question about 'physical order' of VFP tables and SQL performance...

Our company has several large database history tables (some have RECCOUNT() of several million.) I/we've understood for some time now the value of keeping the physical order reflective of the way we typically query the database (by acct/item/date).

A few in our company have been 'skeptical' of this, even though I've shown that querying can take a second or two with one database (where physical order is acct/item/date) and up to a minute or more with one that isn't ordered.

Can anyone give any 'advanced' details on this (or even point me to Knowledge Base articles) on this?

TIA,
Kevin
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