Re: Rollback?

> But, given that pessimistic locking locks any data that is going to be 
> updated, if your application is transaction-intensive updating the same data, 

> you'll get a lot of processes waiting at the same time.

"Waiting for Godot"

Or, as users of SAP call it in German; "Sanduhr-Anzeige-Programm" - 
Hourglass-Display-Program. >:->
 
> it won't even help if the framework had something like a central server on 
> top of the db & shared among different processes since the data still can 
> be updated directly at the database level by any other process. 

Well, I can forbid that for the main database of my application.
 
> - optimistic locking: you'll get notifications when saving changes,

How does this work?

> giving you the opportunity to examine the change and, e.g., automatically 
> handle them or provide feedback to the user. 

That would be what I am looking for.

Sincerely,

Wolfgang Keller

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