System and method for obtaining complete and correct answers from incomplete and/or incorrect databases
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United States of America Patent
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Nov 16, 1999
Grant Date -
N/A
app pub date -
Aug 14, 1997
filing date -
Aug 22, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method for obtaining complete and correct answers from incomplete and/or partially incorrect databases determine if the answer to a query will be complete by determining whether the answer to the query is independent of an insertion update to the database. If the answer to the query is independent of an insertion update, the system and the method determine that the answer to the query will be complete. In the case of databases that may be incorrect, the system and the method determine if the answer to a given query will be correct by determining if the answer to the query is independent of a deletion update to the database. If the answer to the query is independent of a deletion update, the system and the method determine that the answer to the query will be correct.
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