A program should function correctly regardless of the state of the database or the data inputs. "Correctness" means that it has anticipated and handles the error, or informs the user of the problem and exits in a pre-defined manner.
Just a set of random postings, sometimes about questions to which I've found the answer and might later forget, sometimes random ramblings.
Some links about me:
http://www.google.com/profiles/larrywatanabe ,
http://stackoverflow.com/users/118860/larry-watanabe ,
http://larrywatanabe.blogspot.com ,
http://portal.acm.org/citation.cfm?id=125337 ,
http://www.programmersheaven.com/user/larrywatanabe/ ,
http://www.informatik.uni-trier.de/~ley/db/indices/a-tree/w/Watanabe:Larry.html ,
http://portal.acm.org/citation.cfm?id=211243 ,
http://www.interaction-design.org/references/authors/larry_watanabe.html,
http://dli.iiit.ac.in/ijcai/IJCAI-87-VOL1/PDF/060.pdf,
http://www.aaai.org/Papers/AAAI/1990/AAAI90-131.pdf ,
http://www.wipo.int/pctdb/en/wo.jsp?wo=2004107121
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