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SQLing over the net
Message
De
19/07/2001 11:11:51
Hilmar Zonneveld
Independent Consultant
Cochabamba, Bolivie
 
 
À
19/07/2001 11:05:16
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00532545
Message ID:
00532592
Vues:
12
>We're working with SET DELETE ON, and I'm my book and from what I was told in several years, that we should have a tag on DELETED(). Unless, this has changed in the last versions. Isn't it the case? Any comment on that?

Michel, basically nothing has changed. If you have a tag on Deleted(), or on any other expression that returns many records for part of a condition, the query is fully optimized, and therefore slow.

A partially optimized query is sometimes much faster. Please try it!

Oh, BTW, I understand that sometimes a "fully optimized" query will run faster than a "partially optimized" query, but slower over a network. In this case, program for the worst-case scenario, i.e., network.

Hilmar.
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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