In an ER model, Y is the dominant/strong entity and X is the subordinate/weak…
In an ER model, Y is the dominant/strong entity and X is the subordinate/weak entity.
Which of the following statements is incorrect?
- A.
If X is deleted, Y is also deleted.
- B.
X's existence depends on Y.
- C.
If Y is deleted, X is also deleted.
- D.
If X is deleted, Y remains unchanged.
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