An attribute or a set of attributes that could potentially be chosen as the table's key is a
A) secondary key
B) primary key
C) candidate key
D) provisional key
Correct Answer:
Verified
Q22: The Select operation on tables is often
Q23: Assume that you use the Product operation
Q24: Logical tables are created from a(n)
A) query
B)
Q25: Relationships in a database schema show how
A)
Q26: Rules for writing XML include
A) element names
Q28: XML must be written using a
A) web
Q29: XML tags cannot contain
A) numbers
B) uppercase letters
C)
Q30: Which of the following statements is NOT
Q31: The design of a(n) _ database is
Q32: The database scheme (or schema)
A) specifies, for
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