In a three-level DBMS architecture, the _______ level interacts directly with the users.
A) external
B) conceptual
C) internal
D) physical
Correct Answer:
Verified
Q8: The _ level of a three-level DBMS
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
Q15: A unary operator is applied to _
Q16: The unary _ operation always results in
Q17: Each row in a relation is called
Q18: The data model and the schema of
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