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Explain why NULL values in a relation should be avoided as much as possible
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Ontologies Based Databases And Information Systems First And Second Vldb Workshops Odbis 2005/2006 Trondheim Norway September 2005 Seoul Korea September 2006 Revised Papers Lncs 4623
Authors: Martine Collard
2007th Edition
3540754733, 978-3540754732
