>> If a program crashes I suppose that the row will remain locked from some
>> time, but I don't know how long it will remain locked. Does anybody know
>> this locking time?
>>

In this case, it can take up to 2h until Firebird detects that the
connection was broken, and in the meantime, the lock will stay active.
This detection time can be shorten by setting the TCPIP parameters in
the operating system or (not always recommended) setting the
DummyPacketInterval in the fb.conf file.

[]s
Carlos
Firebird Performance in Detail - http://videos.firebirddevelopersday.com
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