Oracle Exam 1Z0-900 Topic 4 Question 72 Discussion

Actual exam question for Oracle's 1Z0-900 exam

Question #: 72
Topic #: 4

[All 1Z0-900 Questions]

Given the code fragments:

Which action completes this composite primary key implementation?

AAdd @IdClass annotation at line 1.

BAdd @Embeddable annotation at line 1 and replace both @Id annotations with @EmbeddedId annotations.

CAdd @IdClass(ContactId.class) annotation at line 2.

DAdd @Embeddable annotation at line 1 and @EmbeddedId(ContactId.class) at line 2.

Show Suggested Answer

Suggested Answer: C, D

by Carmelina at Dec 24, 2023, 11:17 AM

Limited Time Offer

25%

Off

Get Premium 1Z0-900 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Sharee

4 days ago

I'm leaning towards Option C. Adding the @IdClass annotation at line 2 seems like the simplest solution. But I'll need to make sure the ContactId class is set up correctly.

upvoted 0 times

...

Bronwyn

12 days ago

But adding @Embeddable and @EmbeddedId seems unnecessary, so I still think B is the best choice.

upvoted 0 times

...

Melissa

13 days ago

I disagree, I believe the answer is D.

upvoted 0 times

...

Bronwyn

15 days ago

I think the correct answer is B.

upvoted 0 times

...

Merissa

17 days ago

But adding @Embeddable and @EmbeddedId seems unnecessary, I still think B is the best choice.

upvoted 0 times

...

Mozelle

18 days ago

I disagree, I believe the correct answer is D.

upvoted 0 times

...

Olene

18 days ago

Option D seems like the right choice here. The @Embeddable and @EmbeddedId annotations are the way to go for a composite primary key.

upvoted 0 times

...

Eileen

20 days ago

Option B looks good, but I'm not sure about replacing the @Id annotations. I'll need to double-check the documentation on that.

upvoted 0 times

...

Merissa

22 days ago

I think the correct answer is B.

upvoted 0 times

...