Multiple Choice
According to Codd's _____ rule of relational databases, application programs and ad hoc facilities are logically unaffected when changes are made to the table structures that preserve the original table values (changing order of columns or inserting columns) .
A) distribution independence
B) logical data independence
C) comprehensive data sublanguage
D) integrity independence
Correct Answer:
Verified
Correct Answer:
Verified
Q2: A(n) _ provides a detailed description of
Q3: A _ is any key that uniquely
Q4: The idea of determination is unique to
Q5: A _ contains at least all of
Q6: In a natural join, the column on
Q8: _ are especially useful when you are
Q9: _ logic, used extensively in mathematics, provides
Q10: The _ relationship is the relational database
Q11: A _ key can be described as
Q12: Each table _ represents an attribute.<br>A) column<br>B)