On Sun, 24 Sep 2006 04:41:55 -0700 (PDT), you wrote: >User (Client App) connects to middle-tier application-server and then user >may access any one company in normal or exclusive mode. Only >application-server communicates with database. If user wants exclusive >access, Application-Server needs to maintain that exclusive access to >database for that user.
Hello I don't understand, how you get a real advantage, if you lock a Database (in daily processing) exclusive... I think, that isn't really necessary. But, if you want it nonetheless, then write and read a Lock-State-Table. I do it this way in my App. Every User do a Login in a specially Table and also a Lockout, if endet his work. If an exclusive Mode wanted by User, then write a adequate Info to the Lockstate-Table. Then check, that not another User has earlier rights. If this successful, the User can work in exlusive mode, is not, kick him out ;-) The real advantage by this way is, an Administrator is never blocked by a silly User, who has forgotten to logout and is gone to weekend at wednesday. My opinion is, never do a hard lock to a Database, except, it is done by the Database himself. Best Regards Thomas www.thlu.de ----------------------------------------------------------------------------- To unsubscribe, send email to [EMAIL PROTECTED] -----------------------------------------------------------------------------
