Plateforme Level Extreme
Abonnement
Profil corporatif
Produits & Services
Support
Légal
English
SEEK equivalent in Sql-Server
Message
De
10/06/2002 11:18:46
 
 
Information générale
Forum:
Visual FoxPro
Catégorie:
Client/serveur
Divers
Thread ID:
00666496
Message ID:
00666537
Vues:
11
>>
>>Yes I know that, I mean SEEK in Fox compared to EXISTS in Sql-Server.
>
>I've no idea how to compare SEEK in VFP with EXISTS in Sql Server. All I can say, that with EXISTS Sql Server doesn't select all records, that satisfied specified conditions, but looks for the first one only, which makes it vary close to the SEEK. You can emulate IF EXISTS in VFP and run some tests but I'm not sure that you can relate results to Sql Server EXSISTS command. See Re: Not exists command Thread #646918 Message #646925.

OK.

The reason I need a comparison is that we may be putting out Fox data into Sql-Server, and I have some areas of the system that check for existence of records in many tables (using indexseek), and I need to know if it's going to be much different in terms of performance, in Sql-Server.

Thanks
Kev
Précédent
Suivant
Répondre
Fil
Voir

Click here to load this message in the networking platform