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Performance Advice on Larger Record Sets
Message
De
08/07/2002 10:18:10
Hilmar Zonneveld
Independent Consultant
Cochabamba, Bolivie
 
 
À
08/07/2002 10:12:06
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00676060
Message ID:
00676108
Vues:
15
>In my case, the 100,000 records are split over about 12-15 locations, so it would be reasonable as a first guess to assume that the view size would be on the order of 5,000-10,000 records (for a "main" office possibly quite a bit higher, perhaps 20-30K), so indexing on-the-fly could become a performance issue. Do you agree?

I am not sure - indexing should be fairly fast, I think; I am more worried about fetching the records for the view.

Speed tests are warranted.

Also, see if you can add a second criterion to reduce the result set even more. I mean, does the user really need to see 20,000 records at a time???

Depending on the data, you might specify a date range, for instance.

>BTW, I just read your FAQ on Rushmore. Very interesting.

Thanks.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
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