A combination of two or more columns used to identify particular rows in a relation is a ________.
A) record
B) field
C) composite key
D) foreign key
E) surrogate key
Correct Answer:
Verified
Q70: A determinant that determines all the other
Q71: A relation is also known as a(n)_.
A)table
B)tuple
C)relationship
D)attribute
E)field
Q72: When designing a database,one of the candidate
Q73: An attribute is also known as a(n)_.
A)table
B)relation
C)row
D)field
E)file
Q74: A tuple is also known as a(n)_.
A)table
B)relation
C)row
D)field
E)file
Q76: A key consisting of one or more
Q77: Which of the following is true about
Q78: Given the functional dependency A → (B,C),A
Q79: Given the functional dependency (A,B)→ C,then _.
A)A
Q80: Normalization is a process used to deal
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