In an E-R, B is the dominant entity and A is a subordinate entity. Select which one is incorrect?
A). An A existence is dependent on B
B). operationally, if A is deleted, B remains the same
C). operationally, if A is deleted, so is B
D). operationally, If B is deleted, so is
Answer:A
In an E-R, B is the dominant entity and A is a subordinate entity. Select which one is incorrect?
A). An A existence is dependent on B B). operationally, if A is deleted, B remains the same C). operationally, if A is deleted, so is B D). operationally, If B is deleted, so is