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From "Dag H. Wanvik" <Dag.Wan...@Sun.COM>
Subject Re: updatable resultSet
Date Fri, 07 Oct 2005 01:34:04 GMT
>>>>> "Kathey" == Kathey Marsden <kmarsdenderby@sbcglobal.net> wrote:

Fernanda and I have started looking at this feature. If anybody is
interested on working on it with us, we'd welcome any help :)

At the outset, we would appreciate to hear of any obstacles (other
than locators) people may know about. Apart from the client/server
aspect, what aspect would likely be more challenging in embedded
Derby? Would adding insert to forward-only result sets be a useful
step in the right direction? In contrast to read-only scrollable
result sets, updatable result sets must be sensitive (changes by other
transactions are seen), so the current solution for scrollability
may not be what we need (?).


Kathey> Sure there is a chance.  As Dan always says,  it's software, we can do
Kathey> anything we want.  All we need is someone to do the work.   I am not
Kathey> sure even if there is a  Jira entry for this one even though it is
Kathey> listed as a limitation in the documentation,  so checking Jira and
Kathey> filing an issue if it is not there, would be an excellent place for you
Kathey> to start.  If you are not quite prepared to implement this feature
Kathey> yourself,  also very helpful would be to  identify existing tests  or
Kathey> write new ones which run against embedded and can be used to test this
Kathey> feature and at least start researching an implementation strategy.   I
Kathey> bet there are other folks who are interested in this feature that might
Kathey> be willing to help out if you get the ball rolling.
Kathey> Currently, we do not have large object locators  (DERBY-208) and I think
Kathey> that is a prerequisite for this feature.   Large objects are
Kathey> materialized on the client which is a big issue and not just for for
Kathey> scrollable cursors.   
Kathey> Kathey
Dag H. Wanvik
Sun Microsystems, Web Services, Database Technology Group
Haakon VII gt. 7b, N-7485 Trondheim, Norway
Tel: x43496/+47 73842196, Fax:  +47 73842101

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