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Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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The variable-length record format uses a null bitmap to show whether an attribute has a null value or not. If the value of the field in this instance is null, what would be put in the offset and length fields of variable-length fields?
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