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Which of the following is not true about a NULL attribute?
trancy
trancy
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6 days ago
6 days ago
Which of the following is not true about a NULL attribute?
Which of the following is
not
true about a NULL attribute?
• On insertion, entering the data for that field is optional.
• It is an important property of an attribute.
• It must have a default value specified.
• A primary key can't be NULL.
Source
Download Study Guide
Database Processing: Fundamentals, Design, and Implementation
Edition:
15
th
Authors:
Kroenke, Auer, Yoder, Vandenberg
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A null value is an attribute value that has been set to zero.
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blazeypooh
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6 days ago
It must have a default value specified.
1 Vote
ytbo396
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