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SQL Query Question
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De
17/11/2004 09:35:55
 
 
À
16/11/2004 17:56:08
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
00961929
Message ID:
00962166
Vues:
9
>Yes, but you should know that VFP will only join two tables at a time, so at best you'll only get partial optimization.
>

Huh, what's the connection there? Each join will be optimized, using either existing indexes or temp indexes created on the fly. If no outer joins are involved, the engine will determine the best order to join the tables for optimization. (That happens with outer joins, too, to some extent, but outer joins limit the changes in order that can be made.)

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