Exercise: Database Redesign

Questions for: Database Redesign

The EXISTS keyword will be true if any row in the subquery meets the condition.
A:
True
B:
False
C:
D:
Answer: A
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Dependency graphs are diagrams that consist of nodes and arcs that show the dependencies of a database.
A:
True
B:
False
C:
D:
Answer: A
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The NOT EXISTS keyword will be true if any row in the subquery meets the condition.
A:
True
B:
False
C:
D:
Answer: B
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Adding null columns to a table is straightforward.
A:
True
B:
False
C:
D:
Answer: A
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Information systems and organizations do not just influence each other; they create each other.
A:
True
B:
False
C:
D:
Answer: A
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