HP3000-L Archives

June 2000, Week 3

HP3000-L@RAVEN.UTC.EDU

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Subject:
From:
"Emerson, Tom # El Monte" <[log in to unmask]>
Reply To:
Emerson, Tom # El Monte
Date:
Tue, 20 Jun 2000 14:12:40 -0400
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I'll disclaim any knowledge of how powerhouse works in particular up front
-- I've never used the product -- but I'd like to point out a couple of
other "gotcha's" on this:

**in general**, the file equates listed will work

**however**, databases can be referred to in the DBOPEN call via one of
these forms:

    dbname
    dbname.group
    dbname.group.account

[and possibly even posix notations, but that's outside this discussion... :)
]

Depending on exactly how the database is opened (or "qualified" might be a
better word), you may need to "equate" it using the group and account
levels.  Worse, if you SUPPLY an equate of the form

    file dbname.group.account = dbname.testgrp.account

and the program only opens "dbname.group", then the above file equate will
NOT be used [this is true even for non-database files] basically, the
equated file must match EXACTLY in order for the equate to become active.

Finally, if the program you're running SETS a file equate [via the COMMAND
intrinsic or other means] for the database, such as:

    file generic=specific.data.prod

then any file equate you set will be ignored or overwritten.

[obviously "generic" and "specific" are not legal database filenames, this
is just to show the concept]

> -----Original Message-----
> From: Pickering, John (NORBORD) [mailto:[log in to unmask]]
> Sent: Tuesday, June 20, 2000 10:54 AM
> To: [log in to unmask]
> Subject: Re: [HP3000-L] Image and file equates
>
>
> Just issue the file equate
> :file xxxx.data=xxxx.testdata
>
> > -----Original Message-----
> > From: James B. Byrne [SMTP:[log in to unmask]]
> > Sent: Tuesday, June 20, 2000 1:42 PM
> > To:   [log in to unmask]
> > Subject:      Image and file equates
> >
> > Is there any way of getting software to look for a database via some
> > sort of MPE re-direction?  We are testing some new changes to our
> > PowerHouse applications and our dictionaries are all compiled with
> > the database file set to xxxx.data.
> >
> > Our testdata resides in the group testdata.  I would like
> to have the
> > existing compiled applications reference the test data
> without having
> > to re-compile them all into a special group using a special
> > dictionary.
> >
> > Regards,
> > Jim
> > ---   *** e-mail is not a secure channel ***
> > James B. Byrne                Harte & Lyne Limited
> > vox: +1 905 561 1241          9 Brockley Drive
> > fax: +1 905 561 0757          Hamilton, Ontario
> > mailto:[log in to unmask]  Canada L8E 3C3
>

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