A _____ key is defined as a key that is used strictly for data retrieval purposes.
A) lookup
B) foreign
C) candidate
D) secondary
Correct Answer:
Verified
Q29: The CUSTOMER table's primary key is CUS_CODE.
Q30: _ logic, used extensively in mathematics, provides
Q31: A _ is any key that uniquely
Q32: A(n) _ only returns matched records from
Q33: _ returns only the attributes requested, in
Q35: To be considered minimally relational, the DBMS
Q36: Referential _ dictates that the foreign key
Q37: The _ constraint can be placed on
Q38: Each table _ represents an attribute.
A) column
B)
Q39: A _ key can be described as
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