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Old January 28th, 2004, 11:39 AM
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Default How to program a multi-user app


I am writing a web application with ASP and SQL Server 2000. The app basically enables the manipulation of data in the database. When I open a recordset, I do so with pessimistic locking.


Two people, A and B, are using my app at the same time. A opens a record, and therefore B is barred from opening it.

However, while A has the record open, B goes (in his browser) to the page that requests the opening of the record.


What happens to B's request? Is it discarded (and lost) by the server, or does the server queue it and execute it when A releases the record? If queueing takes place, how many requests can wait in a queue?

I am new to the way in which multi-user apps ought to be programmed, and this is an area I don't understand. Please can you help me see how this works, and if I need to apply special techniques for catering for multiple users?




Old February 2nd, 2004, 11:48 AM
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Cross post to this thread.

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