Re: Emulator Interface with Win2k

There are basically 3 ways to get data from a remote database in VB, in
order of historical apperance:

DAO (Data Access Objects
     Basically a JET - MS Access method
     Can use ODBC
         Access databse linked to an ODBC source - worst performacne
         ODBCDirect - bypassed JET engine
RDO (remote data objects)
     Uses ODBC
     Thin wrapper over ODBC API
ADO (ActiveX data objects)
     Uses OLE/DB (low-level interface)
     MS provides driver that is a wrapper over ODBC

VB code should usually work under either flavor of Windows. Might be
Unicode issues, but I'mnot sure here. Details can be found in the Microsoft
Developer's Network. It's available on the web at <msdn.microsoft.com> (I
think). Look at the MSDN Library link. There's more there under 'Data
Access' and under 'Visual Basic'

At 02:09 PM 3/20/02 -0500, you wrote:
>Is it true that ODBC driver for DB2/400 is needed with VB and where I'm I
>getting that from.  How does OLE/dB plays into all this connection.  And how
>will all these play together under Win2k and my current VB codes that were
>written under Win95.
>
>Dare
>
>----- Original Message -----
>From: "Vernon Hamberg" <vhamberg@attbi.com>
>To: <midrange-l@midrange.com>
>Sent: Wednesday, March 20, 2002 1:54 PM
>Subject: Re: Emulator Interface with Win2k
>
>
> > Every driver has differing capabilities. Seems to me that CA's OLE/DB
> > driver can only return single result sets, where HiT's can handle multiple
> > ones. It may have changed by now. So these will need to be determined. But
> > then, MS's OLE/DB over ODBC could handle multiple sets. But it had more
> > overhead.
> >
> > TMTOWTDI - there's more than one way to do it
> >
> > At 01:47 PM 3/20/02 -0500, you wrote:
> > >Are there limitations or issues with VB programming, Operating system,
> > >Specific Emulation package, ODBC drivers and OLE/dB drivers.  If I
>remember
> > >correctly CA had issues with OLE/dB drivers etc.
> > >
> > >Dare
> > >
> > >----- Original Message -----
> > >From: "Vernon Hamberg" <vhamberg@attbi.com>
> > >To: <midrange-l@midrange.com>
> > >Sent: Wednesday, March 20, 2002 1:33 PM
> > >Subject: Re: Emulator Interface with Win2k
> > >
> > >
> > > > It's been awhile, but here goes.
> > > >
> > > > The ODBC driver you use should handle getting to the server. Are you
>using
> > > > TCP/IP now? The server names should be available, host tables, DNS,
>etc.
> > > >
> > > > VB could care less about connection protocols, just things like
> > >authentication.
> > > >
> > > > Take alook at you ODBC Admin control panel app. It should show you
>some
> > > > options like protocol, server name, etc., and these are what you will
>need
> > > > to set up. Then it's easy. <g>
> > > >
> > > > At 01:12 PM 3/20/02 -0500, you wrote:
> > > > >Isn't there an issue in addressing and configuration when you using
>ODBC
> > >and
> > > > >VB.
> > > > >
> > > > >Dare
> > > > >
> > > > >----- Original Message -----
> > > > >From: "Vernon Hamberg" <vhamberg@attbi.com>
> > > > >To: <midrange-l@midrange.com>
> > > > >Sent: Wednesday, March 20, 2002 1:06 PM
> > > > >Subject: RE: Emulator Interface with Win2k
> > > > >
> > > > >
> > > > > > I agree. Go with native TCP/IP. You get more options, all the
>usual
> > > > > > suspects, like WRQ Reflection, Personal Communications, Synapse,
> > >Client
> > > > > > Access, NetManage Rumba, various ODBC and OLE/DB drivers, etc.
> > > > > >
> > > > > > What benefit is there with SNA Server, other than connectivity?
> > > > > >
> > > > > > At 10:01 AM 3/20/02 -0800, you wrote:
> > > > > > >Dare,
> > > > > > >
> > > > > > >In this day and age, an SNA gateway represents a huge overhead
>with
> > > > > > >unnecessary complexity.  Scrub the hard disk and set it up as a
>Linux
> > > > > > >play pen!
> > > > > > >
> > > > > > >You'll find your network easier to manage if you remove the
>gateway
> > >and
> > > > > > >go direct to the AS/400.
> > > > > > >
> > > > > > >IMHO
> > > > > > >
> > > > > > >Best Regards
> > > > > > >
> > > > > > >Fritz Hayes
> > > > > > >Atwater Associates
> > > > > > >
> > > > > > ><snip>
> > > > > > >|
> > > > > > >| I forgot about my SNA Server.  All client pass through this
>server
> > >to
> > > > > > >get
> > > > > > >| to
> > > > > > >| the AS/400
> > > > > > >|
> > > > > > >
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