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Remote View vs SQL Pass through
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De
30/10/2001 23:59:14
John Ryan
Captain-Cooker Appreciation Society
Taumata Whakatangi ..., Nouvelle Zélande
 
 
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30/10/2001 18:23:09
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00572183
Message ID:
00575471
Vues:
38
Luis

>>Do you have "Updatable SPT's?"<<

He is referring to the use of cursorsetprop() to convert a SPT or SP into an updatable cursor. It can work really well. However, it isn't so good for things like databound grids where RV is so easy, you'd need compelling reasons not to use it...

>>how do you create such "Any backend RV's?" An explanation would be appreciated.<<

OK if you use programmatic or even the View Designer with an ODBC DSN set up against your backend, you can use just about any backend successfully as long as you do not use any backend specific stuff (like datediff from SQL Server). Well worth reading the ODBC documents because there are ODBC constructs that automatically convert some expressions to the selected backend, meaning you CAN have expressions against multi backends. Our same client product works for about 5 different backends; our customers are delighted when we say "sure" when they ask about Oracle or Sybase unlike other shops who can only do Cache or SQL Server.

Regards

JR
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us.
"
-- Shakespeare: Coriolanus, Act 1, scene 1
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