CIW Exam 1D0-541 Topic 3 Question 95 Discussion

Actual exam question for CIW's 1D0-541 exam

Question #: 95
Topic #: 3

[All 1D0-541 Questions]

Which of the following best describes the ON DELETE CASCADE referential integrity

constraint?

AIf a parent key is deleted, any child keys referenced by the parent key are automatically deleted.

BIf any child key references a parent key, the record containing the parent key cannot be deleted.

CIf a parent key is deleted, all child keys are automatically set to a specified value.

DIf a parent key is deleted, no test is made for referential integrity.

Show Suggested Answer

Suggested Answer: A

by Larue at Aug 28, 2024, 08:55 AM

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Yoko

2 months ago

A) Yep, that's the one. Deleting the parent and letting the kids go with it - it's the database equivalent of a nuclear family reunion.

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Yan

2 months ago

A) Yep, that's the one. Deleting the parent and letting the kids go with it - it's the database equivalent of a nuclear family reunion.

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Arlene

2 months ago

B) B) If any child key references a parent key, the record containing the parent key cannot be deleted.

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Mauricio

2 months ago

A) A) If a parent key is deleted, any child keys referenced by the parent key are automatically deleted.

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Eveline

3 months ago

B) Oh, that's the one where you can't delete the parent key if there are any child keys. Sounds like a great way to keep your data integrity intact.

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Thomasena

2 months ago

A) It's definitely a handy tool for managing relationships between tables.

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Moira

2 months ago

C) Exactly, it's a useful feature for maintaining data consistency in relational databases.

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Mabel

2 months ago

B) I see, so it basically enforces a rule that all child records must have a corresponding parent record.

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Susana

2 months ago

A) Yes, that's correct. It helps ensure that there are no orphaned records in the database.

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Lemuel

3 months ago

Actually, the correct answer is A. When a parent key is deleted, all child keys referenced by the parent key are automatically deleted.

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Rosalind

3 months ago

D) Hah, that would be a disaster! Deleting parent keys without checking for referential integrity? No way, that's just asking for data chaos.

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Floyd

3 months ago

B) I agree, not checking for referential integrity when deleting parent keys is a recipe for disaster.

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Almeta

3 months ago

A) If a parent key is deleted, any child keys referenced by the parent key are automatically deleted.

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Enola

3 months ago

I'm not sure, but I think it might be C.

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Elfriede

3 months ago

C) Wait, really? I thought it would set the child keys to NULL, not a specified value. Gotta double-check that one.

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Lezlie

3 months ago

A) For sure, that's the right answer. I've used ON DELETE CASCADE many times to clean up my database.

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Vinnie

2 months ago

A) It's a great way to automatically delete related records when a parent record is deleted.

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Margart

3 months ago

B) I always make sure to use ON DELETE CASCADE to avoid orphaned records in my database.

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Robt

3 months ago

A) I agree, ON DELETE CASCADE is really useful for maintaining referential integrity.

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Karan

3 months ago

I agree with Kanisha, because ON DELETE CASCADE means child keys are automatically deleted.

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Kanisha

4 months ago

I think the answer is A.

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