Discuss the various reasons that lead to the occurrence of NULL values in relations.
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Discuss the various reasons that lead to the occurrence of NULL values in relations.
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A NULL value is a special marker used in SQL to indicate that a data value does not ...View the full answer
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Related Book For
Fundamentals Of Database Systems
ISBN: 9780133970777
7th Edition
Authors: Ramez Elmasri, Shamkant Navathe
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