Which of the following are properties of relations?
A) Each attribute has the same name.
B) No two rows in a relation are identical.
C) There are multivalued attributes in a relation.
D) All columns are numeric.
Correct Answer:
Verified
Q10: A primary key whose value is unique
Q11: The normal form which removes any remaining
Q12: The entity integrity rule states that:
A) no
Q13: The _ states that no primary key
Q14: In the SQL language, the _ statement
Q16: All of the following are the main
Q17: A form of database design which maps
Q18: Which of the following violates the atomic
Q19: When all multivalued attributes have been removed
Q20: In the figure below, the primary key
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