Database on server 7.3.2 stopped responding.

Hi,
I have a client running Oracle server 7.3.2. on a sun box I was on-site the other day installing some updates (forms 4.5 and reports 2.5) and whilst I was running a report the database seemed to freeze. I couldn't log in again after trying to cancel the report and their IT staff told me that they couldn't shut the database down and would have to wait for the processes running on it had completed of their own accord.

I wonder if anyone could explain to me the following:

As I was the only person testing this system, couldn't they have just killed the process(es) that were running on the frozen database? Are there complications I don't know about?

Another report I try to run on the client site comes up with a FETCH OUT OF SEQUENCE error after running for a long time. It is doing some complicated grouping and sorting but it runs ok in-house. What could be causing this error?

Thanks very much in advance.

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