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What to expect of local mode - 25 clients, 25 databases

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I've been through many of the posts but have stuck at one point. What is the local mode. Sun wants the client to be in either local or remote mode.
For Remote mode there is no problem since the client connects to a remote database server. For the local mode the requirements state that the client should connect to a local database. Now think of 25 clients trying to connect in local mode. Do all of these have an individual copy of the database. Whats the point of having such a requirement. This thing is confusing me. Since i am not able to figure out what local mode exactly is, i can't proceed with the locking phase.
Pls point out whether my assumptions about local mode is correct and what you are assuming about the local mode.
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I think the local mode is just only for one client accessing the local database. I do not think, your code needs to support more than one client for local mode. Think of it, in reality how, more than one clinet can operate while booking or quering the flight info. ? It may be possible to write code to simulate more than one clinet, but it is not practically useful. Others please comment if I am not correct in understanding this.
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