Plateforme Level Extreme
Abonnement
Profil corporatif
Produits & Services
Support
Légal
English
ADO Slow
Message
De
25/03/2008 17:09:24
Aman Bains
Jaguar Computers
Jalandhar, Inde
 
 
À
25/03/2008 15:09:39
Information générale
Forum:
Visual FoxPro
Catégorie:
Client/serveur
Titre:
Versions des environnements
Visual FoxPro:
VFP 9 SP2
Database:
MS SQL Server
Divers
Thread ID:
01305207
Message ID:
01305475
Vues:
10
>If the number of users is low, then why not use native DBFs for local storage?

As we speak... I am contemplating how to raise & feed an army (of support engineers) to keep the natives (DBFs) alive (from corruption). All kinds of ammunition (utilities) has been deployed, in the hope of overcoming the enemy. but we still can't seem to overcome the fear.
just joking :) (We have frequent power cuts some times, and these are my thoughts from such an episode)

The number of users is low for each deployment. Small database just seems to be easier to deploy.. although such a thought might be misplaced, that is why I am wanting to discuss it, and seek the guidance of our collegues.

We have already converted an application to SQL Server 2005 using SPT/ODBC, with excellent results. My question remains, kindly give your suggestions.

Thanks.


>>I wanted to use "SQL Server CE 3.5" and "Microsoft Sync Services" to provide a distributed solution, where each client would have their own local database (No. of such users is not very high).
>>Brochure says "SQL Server CE 3.5" Supports ADO.NET, LINQ to SQL, LINQ to Entities and the ADO.NET Entity Framework. Does that mean VFP/ADO cannot use it?
>>
>>Problem: SQL CE allows only OleDB Connection, which I guess means Cursor Adaptor with ADO has to be used, Which is very slow compared to SPT/ODBC combination. I tested by downloading a huge table with following results:-
>>

>>SPT/ODBC: 38.5 Seconds
>>CursorAdaptor/ADO/OleDB: 120.0 Seconds
>>

>>Even Downloading a few fields only using CA by specifing SelectCmd with UseCursorSchema=.F. resulted in poor comparative performance.
>>
>>Any suggestions ? IF SQL CE solution is not possible with VFP then can such a distributed solution be built using Firebird ?
Aman
-------
Lets fly away to the Land where there is Love & Peace
Précédent
Répondre
Fil
Voir

Click here to load this message in the networking platform