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What is the best index expression?
Message
De
19/04/2005 12:23:23
 
 
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Versions des environnements
Visual FoxPro:
VFP 8 SP1
OS:
Windows XP SP2
Divers
Thread ID:
01005870
Message ID:
01006255
Vues:
20
Hi Nadya,

I only skimmed this thread, but
CASE m.lnTriggerType = TriggerTypeCode
   m.lcSearch = PADR(m.lcSearch, FSIZE("searchTB"))
   SCAN WHILE !m.plError AND SearchTB == m.lcSearch FOR NOT EMPTY(CommandField)
      ...
   ENDSCAN
...
I'ld be hesitant to use this since "while" in scan implies Scope REST (where is the go top ?) and I'ld guess it would also eliminate rushmore (the docs are a bit ambiguos from AFAIR). I tend to use "while" only in seek() scan-scenarios. In the code above Rushmore is certainly disabled for SearchTB == m.lcSearch and I don't see a if seek() ?

regards

thomas
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