Thread View: borland.public.cppbuilder.database.multi-tier
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Started by Nick Rambarransingh
Sat, 22 Jul 2000 00:00
ClinetDataSet - Very Confused ....
Author: Nick Rambarransingh
Date: Sat, 22 Jul 2000 00:00
Date: Sat, 22 Jul 2000 00:00
22 lines
1425 bytes
1425 bytes
Good Day All, The more I play with Client DataSets, the more I get confused. I have the follwoing situation: On a form, I have a client dataset, A. I also have two other datasets, B & C, that should show information based on the current record in A. B and C are each on a seperate tab sheet. How do I communicate to the AppServer that when I select the next record of A that I need to get the matching records of B and C ? Also, from my readings on ClientDataSets, I understand that the client will fetch all the records I specify and keep them in-memory on the client machine. This strikes me as a potential memory problem for the 100's, if not 1000's and maybe millions of records I may be fetching. If I fetch a specific number of records at a time, I don't know how to tell the dataset to fetch the next batch. Please advise. Thanks, Nick Borland Forever ...
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