The _______ level of a three-level DBMS architecture defines the logical view of the data.
A) external
B) conceptual
C) internal
D) physical
Correct Answer:
Verified
Q3: If you want to change the value
Q4: In a three-level DBMS architecture, the layer
Q5: _ is a declarative language used on
Q6: Of the various database models, the _
Q7: Which of the following is a unary
Q9: The operation that takes two relations and
Q10: A binary operator is applied to _
Q11: In a three-level DBMS architecture, the _
Q12: Which of the following is a binary
Q13: If you need to delete an attribute
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