Plateforme Level Extreme
Abonnement
Profil corporatif
Produits & Services
Support
Légal
English
Does Requery() affect _TALLY?
Message
De
27/07/2001 03:58:26
Alexandre Palma
Harms Software, Inc.
Alverca, Portugal
 
 
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
00535351
Message ID:
00536239
Vues:
12
Hi vlad the poblem with this code is that if your remote view is fetch as needed
then all the records will be fetched by the reccount(). For large tables this will be a problem.

>Hi!
>
>_Tally will not be set for remote views. Thus it is not recommended to use _Tally for views when you plan to move to SQl Server or other database in the future. You can use following:
>
>if requery('MyView')=1 AND reccount('MyView')>0
>...
>endif
>
>
>
>>Hello,
>>
>>1.) When I perform a requery() on an SQL-View from the command window then _tally is updated.
>>2.) If I perform a requery() from inside an EXE I seem to (sometimes) run code that is unexpected based on the _tally value.
>>3.) The Hacker's Guide doesn't list requery() as one of the items that affects _tally.
>>
>>I guess I should switch to reccount() to determine if requery() returns and records from a view.
>>
>>Thanks,
>>
>>Kevin
Alexandre Palma
Senior Application Architect
Précédent
Suivant
Répondre
Fil
Voir

Click here to load this message in the networking platform