For some relations, changing the data can have undesirable consequences called:
A. referential integrity constraints.
B. modification anomalies.
C. normal forms.
D. transitive dependencies.
Answer: Option B
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A. A → B.
B. A → C.
C. A → (B,C).
D. (B,C) → A.
A. normal forms.
B. referential integrity constraints.
C. functional dependencies.
D. None of the above is correct.
A relation is in this form if it is in BCNF and has no multivalued dependencies:
A. second normal form.
B. third normal form.
C. fourth normal form.
D. domain/key normal form.
Why r in modification anomalies