Good question, difficuly answer. At least I thought so at first, in fact it's quite simple (I hope). Thinking-while-I-type... Working off-line is really no different from working online. It's just that your ClientDataset will send a whole lot more changes to the server than they normally would. If you can get you app to allow multiple changes before doing an ApplyUpdates then you have don;t 90% of the job. The job of reconcile conflicts may be a bigger task but the mechanism is the same. I suppose it depends a lot on your data structure and the level of inter-dependencies. >From: "Phil Scadden" <[EMAIL PROTECTED]> >Reply-To: [EMAIL PROTECTED] >To: Multiple recipients of list delphi <[EMAIL PROTECTED]> >Subject: [DUG]: Midas again >Date: Wed, 12 Jul 2000 17:07:14 +1200 > >We are (yet again) considering Midas - for a system that has to run >immediately following major disaster (especially earthquake) where >networks, telecoms and power are unlikely to be immediately available. > >The attraction of Midas this time is that independent laptops could be used >for dataentry and then reconciled with main database when server and >network restored later, than to the clientdataset structure. > >Question though. We would really like data to flow into major tables that >make use of unique ids generated by triggers from Oracle sequences. How >do you cope with this kind of data model in a Midas environment. Several >laptops could be use - id collision looks likely. I can think of some >complicated solutions but wondered if there were elegant ones since this >must be a common scenario (use of server-supplied unique ids). > > >---------------------------------------------------------- >Phil Scadden, Institute of Geological and Nuclear Sciences >41 Bell Rd South, PO Box 30368, Lower Hutt, New Zealand >Ph +64 4 5704821, fax +64 4 5704603 >--------------------------------------------------------------------------- > New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED] > Website: http://www.delphi.org.nz ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com --------------------------------------------------------------------------- New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED] Website: http://www.delphi.org.nz
