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TClientDataset in memory tables

 
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Art
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PostPosted: Thu Apr 21, 2005 4:22 pm    Post subject: Re: TClientDataset in memory tables Reply with quote



500 photographs each about 300k

Thanks.


"Bill Todd" <no (AT) no (DOT) com> wrote

Quote:
Define "large amount of data". I use ClientDataSets in a home inventory
system that includes photographs.

--
Bill Todd (TeamB)
TeamB cannot answer questions received via email



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Art
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PostPosted: Thu Apr 21, 2005 4:24 pm    Post subject: Re: TClientDataset in memory tables Reply with quote



To clarify, 500 photographs each about 300k is the total number of photo's
for all 15 records.

"Art" <begunaNOSPAMPLEASE (AT) mindspring (DOT) com> wrote

Quote:
500 photographs each about 300k

Thanks.


"Bill Todd" <no (AT) no (DOT) com> wrote in message
news:4267cddd (AT) newsgroups (DOT) borland.com...
Define "large amount of data". I use ClientDataSets in a home inventory
system that includes photographs.

--
Bill Todd (TeamB)
TeamB cannot answer questions received via email





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Art
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PostPosted: Thu Apr 21, 2005 4:29 pm    Post subject: TClientDataset in memory tables Reply with quote




I was wondering about the capacity of TClientdataset for in memory tables. I have only 15 records but each record will have a large amount of data including photographs. Could I use TClientdataset for this application? If not, what would you suggest as an alternative. This is just a small desktop
application and I am trying to keep it as simple as possible. Just one screen to input data. Probably just 2 files. One for text and the other for the pictures if I decide to use them. Previously all I've used is the BDE with Delphi. Thanks.


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Bill Todd
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PostPosted: Thu Apr 21, 2005 4:59 pm    Post subject: Re: TClientDataset in memory tables Reply with quote

Define "large amount of data". I use ClientDataSets in a home inventory
system that includes photographs.

--
Bill Todd (TeamB)
TeamB cannot answer questions received via email
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Bill Todd
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PostPosted: Thu Apr 21, 2005 5:32 pm    Post subject: Re: TClientDataset in memory tables Reply with quote

That is 150 mb of memory just to hold the photos. I would not use a CDS
for that. Use a database such as Advantage Local Server (free), DBISAM,
or NexusDb.

--
Bill Todd (TeamB)
TeamB cannot answer questions received via email
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Wayne Niddery [TeamB]
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PostPosted: Thu Apr 21, 2005 6:28 pm    Post subject: Re: TClientDataset in memory tables Reply with quote

Art wrote:
Quote:
To clarify, 500 photographs each about 300k is the total number of
photo's for all 15 records.

I see no value in stuffing the photos themselves into a CDS. Why not keep
the photos separate in their native format and use the CDS to store the
location of the photo, and things like caption, date, location taken, etc.

--
Wayne Niddery - Logic Fundamentals, Inc. (www.logicfundamentals.com)
RADBooks: http://www.logicfundamentals.com/RADBooks.html
"True peace is not the absence of tension, but the presence of
justice." - Martin Luther King, Jr.



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Art
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PostPosted: Thu Apr 21, 2005 10:03 pm    Post subject: Re: TClientDataset in memory tables Reply with quote


"Wayne Niddery [TeamB]" <wniddery (AT) chaffaci (DOT) on.ca> wrote

Quote:
Art wrote:
To clarify, 500 photographs each about 300k is the total number of
photo's for all 15 records.

I see no value in stuffing the photos themselves into a CDS. Why not keep
the photos separate in their native format and use the CDS to store the
location of the photo, and things like caption, date, location taken, etc.

--
Wayne Niddery - Logic Fundamentals, Inc. (www.logicfundamentals.com)
RADBooks: http://www.logicfundamentals.com/RADBooks.html
"True peace is not the absence of tension, but the presence of
justice." - Martin Luther King, Jr.

I was considering that too. This application is for a multi-party lawsuit
and involves expert's photo's taken by an engineer so I believe there is
value in embedding them in a database so they cannot be easily tampered
with. Of course an XML TClientdataset would be a poor choice too. I would
have used the binary version. In the end I will probably go with the local
Advantage database.



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