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From Apache Wiki <>
Subject [Ws Wiki] Update of "Tuscany/TuscanyJava/DAS Java Overview/RDBDAS Java User Guide/OCC" by KevinWilliams
Date Thu, 05 Oct 2006 20:27:13 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Ws Wiki" for change notification.

The following page has been changed by KevinWilliams:

- [ Optimistic Concurrency Control] is a technique
to manage concurrency in a relational database system without the use of traditional locks
+ The RDB DAS is intended for use in disconnected scenarios.  When the DAS returns a graph
of SDO DataObjects as the result of a query, there are no locks held on the  underlying database.
 Though locks are not held, the DAS does employ a mechanism called [
Optimistic Concurrency Control] to manage concurrency.

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