Explanation:None. 9. The ______ is the one in which the primary key of one relation is used as a normal attribute in another relation .
A. Referential relation
B. Referencing relation
C. Referenced relation
D. Referred relation
Answer:A
Explanation:None. 9. The ______ is the one in which the primary key of one relation is used as a normal attribute in another relation .
A. Referential relation B. Referencing relation C. Referenced relation D. Referred relation
Explanation:None. 10. A _________ integrity constraint requires that the values appearing in specified attributes of any tuple in the referencing relation also appear in specified attributes of at least one tuple in the referenced relation.