From: Fab <kr...@bi...> - 2002-01-10 19:58:33
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> The 'no sync' scenario presupposes a database having > a single user updating it. > That's not always the case. Some databases (for instance, a sales > based database) intrinsically are updated on both sides. Of course, I only spoke about my needs :-) But the scenario you evoke is kind of dangerous. There is absolutly no way to prevent multiple accesses on the same real record which is logically duplicated through all the pdas. I would prefer to have the pdas store a readonly database, and news or modifications stored in another database on the pdas. Then I should use a robust program on a central machine to include with a lot of controls the different modifs when the pdas come back home. The idea should be to record events in the pda, rather than pure modifications of the copie of the database the pda has in. But the problem is rather tricky. Fab. |