Oracle Exam 1Z0-900 Topic 2 Question 64 Discussion

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

Question #: 64
Topic #: 2

Given the code fragments:

What code should you add to the body of the updateEmployee method in order to save pending changes to the database?

AentityManager.merge(emp);

BContext. Ctx = new InitialContext();UserTransaction utx = (UserTransaction)ctx.lookup(''java:comp/UserTransaction'');utx.begin();entityManager.merge(emp);utx.commit();. entityManager.lock(emp);EntityManager.merge(emp);

CentityManager.getTransaction().begin();entityManager.merge(emp);entityManager.getTransaction().commit();

Show Suggested Answer

Suggested Answer: A, B

by Bernardine at Jul 04, 2023, 02:00 AM

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Dalene

1 months ago

I'll have to go with C on this one. Merging the employee object inside a transaction is the way to go. Anything else is just overkill, in my opinion.

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Ceola

1 months ago

Hmm, C seems like the winner here. The other options look a bit convoluted. Why complicate things when you can just use the good ol' transaction approach?

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Dominga

1 months ago

Aha, C is the way to go! Wrapping the merge in a transaction is the way to ensure the changes get saved properly. Simple and effective.

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Serina

7 days ago

User 1: Aha, C is the way to go!

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Maurine

1 months ago

I'm not too sure about the other options, but C looks like it covers all the bases. Gotta love that clear transaction management.

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Jennie

2 days ago

I would go with option A, it seems like the simplest solution.

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Marlon

16 days ago

I think option B is also a good choice because it includes transaction management.

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Lynelle

1 months ago

I agree, option C seems like the safest choice.

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Jacinta

2 months ago

Option C looks like the right choice. It starts a transaction, merges the employee object, and then commits the transaction. Seems straightforward.

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Bettye

20 days ago

Yes, option C is the best choice for saving pending changes to the database. It follows the correct transaction handling steps.

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Colene

1 months ago

I agree, option C seems to be the correct way to save pending changes to the database.

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Lasandra

1 months ago

Option C looks like the right choice. It starts a transaction, merges the employee object, and then commits the transaction. Seems straightforward.

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Irene

2 months ago

I'm not sure, but I think B) Context. Ctx = new InitialContext();UserTransaction utx = (UserTransaction)ctx.lookup(''java:comp/UserTransaction'');utx.begin();entityManager.merge(emp);utx.commit();. entityManager.lock(emp);EntityManager.merge(emp); might be the correct answer.

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