----- Original Message -----
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To: <[email protected]>
Sent: Friday, July 18, 2008 12:00 PM
Subject: Dataperf Digest, Vol 19, Issue 7


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> Today's Topics:
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>    1. Re: Putting application on a flash drive (Rich Bragonje)
>    2. Re: Putting application on a flash drive (Don Friedman)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 17 Jul 2008 11:58:10 -0400
> From: Rich Bragonje <[EMAIL PROTECTED]>
> Subject: Re: [Dataperf] Putting application on a flash drive
> To: Dataperfect Users Discussion Group <[email protected]>
> Message-ID: <[EMAIL PROTECTED]>
> Content-Type: text/plain; charset="us-ascii"; format=flowed
>
> Hi Don,
>
> I am running Firefox and Eudora from a flash drive. The Firefox app
> is part of a suite of apps provided by PortableApps. I installed
> Eudora on the flash drive, as I needed to use it on PC's where I
> don't have anything other than User rights.
>
> You could install DP and the data on flash drives, and if you need to
> incorporate updates from the flash data to a master db, then use the
> transaction log to record any changes on the flash drives. You could
> set up each flash drive with a unique transaction log filename for
> further tracking.
>
> Rich

Hi Don,

I set up a distributed data collection application where
remote salespeople entered the customer data and needs while on the
road. The idea from Rich is good: "You could
> set up each flash drive with a unique transaction log filename for
> further tracking.".

You may want to consider that a problem arises when collecting the data
centrally and it mixes with the data from other sites. At this point mixed
indexes
cause problems if the indexing fields have
have identical values. If two different distributed records use the same
index values then the records are not
unique.

Another problem arises when centrally importing the data from the remote
sites. It jumbles or repeats central index values with the risk of losing
records.

This can be avoided by:
- setting up a field in the System Parameter Panel that
identifies the local site. Then the panel indexes include the site id field
as well as the panel index.
This makes them unique when two remote sites have the same index value
because they differ by the site id. You can also identify the records
according to the site id.
- Ralph's Recursive Links then ensures centrally thatincrementing index
values create
when importing the field data so that the central indexes are incremental.

The remote sites copy the master db when they leave and set their individual
site id in the system parameter panel. The remote sites
then collect the field data (data on the flash drives).
- Using recursive links and a Site Field works effectively in building
replicative capabilities into a "master" DP database that copies into remote
sites.
Data from the remote sites collect in a master site by using transaction
logs. The site id field and recursive links maintain data
uniqueness.

This method does not provide further replicative capabilities.

Sounds like an interesting project with promise.- Gary





>
>
>
> At 09:05 PM 7/16/2008, you wrote:
> >Does anyone have any experience working on an application from a
> >flash drive? I have a project come up very suddenly where my client
> >might want to distribute a database of about 900,000 items to
> >multiple teams of people who will be examining some related data and
> >marking many of the items with a "yes" or "no" mark. Does the flash
> >drive serve the purpose of DP's temporary drive?
> >
> >--
> >Don Friedman
> >ProfessionalRecords.Com LLC
> >PRS Data Systems
> >205 S Main Street
> >Pittsburgh, PA 15215
> >412-784-1600 - 1-800-PRS-FILE
> >412-784-1615 Fax
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Thu, 17 Jul 2008 13:58:39 -0400
> From: "Don Friedman" <[EMAIL PROTECTED]>
> Subject: Re: [Dataperf] Putting application on a flash drive
> To: "Dataperfect Users Discussion Group" <[email protected]>
> Message-ID:
> <[EMAIL PROTECTED]>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Brain, Rich - thanks for the reassurance. If I take on this project we'll
> have multiple "teams" of people looking at names on a petition form and
> looking through a list of registered voters to confirm that each signatory
> is qualified to sign. If they are qualified then they have to post in a
> subrecord the page and line number. When all the teams are done I'll take
> those subrecords and find out how many signers signed more than once. This
> is a referendum vote about taxing drinks at bars and I suspect that many
> qualified signers signed more than once and that even a larger number
aren't
> qualified to sign in the first place. Distributing the DP app on cheap
flash
> drives is efficient.
>
> Thanks again.
>
> Don
>
> P.S.  Brian - how far out of Sydney are you? I'm going to be passing
through
> early next year and would love to buy you a drink.
>
>
>
> On Thu, Jul 17, 2008 at 11:58 AM, Rich Bragonje <[EMAIL PROTECTED]> wrote:
>
> > Hi Don,
> >
> > I am running Firefox and Eudora from a flash drive. The Firefox app is
part
> > of a suite of apps provided by PortableApps. I installed Eudora on the
flash
> > drive, as I needed to use it on PC's where I don't have anything other
than
> > User rights.
> >
> > You could install DP and the data on flash drives, and if you need to
> > incorporate updates from the flash data to a master db, then use the
> > transaction log to record any changes on the flash drives. You could set
up
> > each flash drive with a unique transaction log filename for further
> > tracking.
> >
> > Rich
> >
> >
> >
> >
> > At 09:05 PM 7/16/2008, you wrote:
> >
> >> Does anyone have any experience working on an application from a flash
> >> drive? I have a project come up very suddenly where my client might
want to
> >> distribute a database of about 900,000 items to multiple teams of
people who
> >> will be examining some related data and marking many of the items with

a
> >> "yes" or "no" mark. Does the flash drive serve the purpose of DP's
temporary
> >> drive?
> >>
> >> --
> >> Don Friedman
> >> ProfessionalRecords.Com LLC
> >> PRS Data Systems
> >> 205 S Main Street
> >> Pittsburgh, PA 15215
> >> 412-784-1600 - 1-800-PRS-FILE
> >> 412-784-1615 Fax
> >>
> >
> >
> > _______________________________________________
> > Dataperf mailing list
> > [email protected]
> > http://lists.dataperfect.nl/mailman/listinfo/dataperf
> >
>
>
>
> --
> Don Friedman
> ProfessionalRecords.Com LLC
> PRS Data Systems
> 205 S Main Street
> Pittsburgh, PA 15215
> 412-784-1600 - 1-800-PRS-FILE
> 412-784-1615 Fax
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