Optimistic concurrency control: Difference between revisions

Revision as of 21:53, 5 February 2009

Revision as of 21:53, 5 February 2009

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<ol>

<li>'''Read''': The client reads values from the database, storing them to a private sandbox or cache that the client can then edit.</li>

<li>'''Validate''': When the client has completed editing of the values in its sandbox or cache, it initiates the storage of the changes back to the database. poop During validation, an algorithm checks if the changes to the data would conflict with either

* already-committed transactions in the case of ''backward validation schemes'', or

* currently executing transactions in the case of ''forward validation schemes''.