Wait Time Control

Question

We open two sessions and execute the update statements.
Update emp
set sal=sal + 500
where empno=10;
This statement is executed in first session.
In second session we execute the
same statement.It keeps on waiting for the transaction to be commited/rolled back by first session.
What parameter we can set to control this wait time?
Thanks in advance for solutions.

Answer 1

I think it would help out a lot if you told us why you want to put a limit on how long before you get a response from a method call. I have a feeling you are trying to do something that could be done a better way, but I don't know what it is exactly you are trying to do.
If you have ever used a debugger (and if you haven't this is a great time to try it out), then you would know that the method call is not a fork or new thread procedure. In other words, when you call a method you program doesn't actually sit there waiting for something to come back from the method. It actually steps into each and every method call and starts processing the code in that method. One way to think about it is as if every time you are calling a method you are actually cutting and pasting that methods code in the spot where the method call is.
So, unless you want to get really creative and put a timer in the method, there is no means for a method call to throw an exception after a set amount of time. If you really want to do this you are going to need to use threading. But my suspicion is, once you use threading you won't care how long it takes for the method to return, because you can just keep right on trucking as the thread handles the method processing. Or you could get yourself into an even bigger mess, more likely if you don't know anything about threading.
JSG