Salesforce Exam DEX-450 Topic 10 Question 86 Discussion

Actual exam question for Salesforce's DEX-450 exam

Question #: 86
Topic #: 10

The Job_Application__c custom object has a field that is a Master-Detail relationship to the Contact object, where the Contact object is the Master. As part of a feature implementation, a developer needs to retrieve a list containing all Contact records where the related Account Industry is 'Technology' while also retrieving the contact's Job_Application__c records.

Based on the object's relationships, what is the most efficient statement to retrieve the list of contacts?

A[SELECT Id, (SELECT Id FROM Job_Applications_r) FROM Contact WHERE
Account.Industry = 'Technology'];

B[SELECT Id, (SELECT Id FROM Job_Applications_r) FROM Contact WHERE
Accounts.Industry = 'Technology'];

C[SELECT Id, (SELECT Id FROM Job_Applications_c) FROM Contact WHERE
Accounts.Industry = 'Technology'];

D[SELECT Id, (SELECT Id FROM Job_Application_c) FROM Contact WHERE
Account.Industry = 'Technology'];

Show Suggested Answer

Suggested Answer: B

by Kris at Apr 10, 2024, 09:55 PM

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Eladia

3 months ago

That makes sense. I might have to reconsider my answer.

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Ivette

3 months ago

I think it's C because the subquery should reference the child object name, Job_Applications_c.

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Brandee

3 months ago

As long as it's not option C, I'm good. 'Job_Applications_c' just sounds wrong, like they forgot to pluralize it or something.

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Katy

3 months ago

D) [SELECT Id, (SELECT Id FROM Job_Application_c) FROM Contact WHERE Account.Industry = 'Technology'];

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Belen

3 months ago

B) [SELECT Id, (SELECT Id FROM Job_Applications_r) FROM Contact WHERE Accounts.Industry = 'Technology'];

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Lura

3 months ago

A) [SELECT Id, (SELECT Id FROM Job_Applications_r) FROM Contact WHERE Account.Industry = 'Technology'];

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Reena

3 months ago

Haha, who names these fields anyway? 'Job_Application_c' - really? Couldn't they have come up with something a little more creative?

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Marya

2 months ago

Yeah, they could have definitely been more creative with the field names.

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Marge

2 months ago

I know right, 'Job_Application_c' does sound a bit bland.

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Gaston

2 months ago

Yeah, they could have definitely been more creative with the field names.

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Margarita

3 months ago

I know right, 'Job_Application_c' does sound a bit generic.

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Stefany

3 months ago

Why do you think C is the right choice?

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Ivette

3 months ago

I'm leaning towards C actually.

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Eladia

3 months ago

I disagree, I believe the correct answer is D.

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Ronny

4 months ago

D is the correct answer. The documentation clearly states that the field name is 'Job_Application_c', not 'Job_Applications_c' or 'Job_Applications_r'.

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Mireya

4 months ago

I think B is the way to go. Using the plural 'Accounts' instead of 'Account' makes more sense since the Contact object has a relationship to the Account object.

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Vesta

2 months ago

Great, thanks for the clarification!

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Annelle

2 months ago

That's correct. This query will efficiently retrieve the list of contacts with related Job_Application__c records where the Account Industry is 'Technology'.

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Shonda

3 months ago

So the correct statement would be [SELECT Id, (SELECT Id FROM Job_Applications_r) FROM Contact WHERE Accounts.Industry = 'Technology'];

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Cortney

3 months ago

Yes, you're right. It should be Job_Applications_r to access the related records in the subquery.

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Azalee

3 months ago

But wouldn't it be Job_Applications_r instead of Job_Application_c in the subquery?

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Joni

4 months ago

I agree, B seems like the correct option to retrieve the list of contacts with related Job_Application__c records.

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Earlean

4 months ago

I think B is the way to go. Using the plural 'Accounts' instead of 'Account' makes more sense since the Contact object has a relationship to the Account object.

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Dominga

4 months ago

Option A looks good, it's using the correct relationship name 'Job_Applications_r' and filtering on the Account Industry field.

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Stefany

4 months ago

I think the answer is A.

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Truman

5 months ago

I'm a little torn between A and D, to be honest. They both look like they could work, but I think A might be the more efficient approach. What do you all think?

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Scarlet

5 months ago

Okay, let's think this through. The question says the Contact object is the Master in the Master-Detail relationship, so the subquery should be using 'Job_Applications_r', not 'Job_Application_c' or 'Job_Applications_c'. I'm going with A.

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Glory

5 months ago

Ha! 'Accounts.Industry', that's a good one. Someone must have been having a bit of a brain freeze when they came up with that option. I'm gonna go with A, it looks the cleanest to me.

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Edgar

4 months ago

Definitely, A is the most efficient statement.

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Lon

4 months ago

I agree with you, A seems like the right choice.

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Colette

5 months ago

Wait, why are we using 'Accounts.Industry' in some of the options? Shouldn't it be 'Account.Industry'? This is making me a bit confused.

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Regenia

5 months ago

Okay, let's break this down. We need to retrieve all Contact records where the related Account Industry is 'Technology', and also get the associated Job_Application__c records. I'm leaning towards option A, since it seems to be the most straightforward approach.

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Hubert

5 months ago

Hmm, this is an interesting question. I'm not too sure about the difference between using 'Job_Applications_r' and 'Job_Application_c' in the subqueries. I'll have to think through this carefully.

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