Salesforce DEX-450 Exam - Topic 12 Question 22 Discussion

Actual exam question for Salesforce's DEX-450 exam

Question #: 22
Topic #: 12

What is the maximum number of SOQL queries used by the following code? List aList = [SELECT Id FROM Account LIMIT 5]; for (Account a : aList){ List cList = [SELECT Id FROM Contact WHERE AccountId = :a.Id); }

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Suggested Answer: B

by Jennie at May 09, 2022, 07:56 PM

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Tayna

10 months ago

I’m surprised it’s that many! I would have guessed fewer.

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Pansy

10 months ago

Wait, are you sure? I thought it was only 1 query.

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Kallie

10 months ago

Totally agree with Earleen, that makes sense!

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Dominga

11 months ago

I think it's actually just 2 queries.

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Earleen

11 months ago

It's 6 queries total. 5 for the accounts and 1 for the contacts.

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Iraida

11 months ago

I’m a bit confused about the inner loop. Does it count as one query per account? I thought it might just be 2 total.

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Tran

11 months ago

If I recall correctly, the outer query counts as one, and then the inner query runs for each account, so that makes it 6, right?

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Jerry

11 months ago

I remember something about SOQL limits, but I’m not sure if it’s 5 or 6 total. I feel like I’ve seen a similar question before.

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Britt

11 months ago

I think the first query gets 5 accounts, but then there’s a query inside the loop for each account, so that could be tricky.

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Louann

11 months ago

Hmm, this is a tricky one. I'm leaning towards the Text Date field type, since that could potentially show trending data over time. But I'm not 100% confident in that answer.

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Jospeh

11 months ago

Hmm, I'm a bit torn on this one. The client wants to complete the migration as soon as possible, so option A with multiple ETL rounds might be the fastest approach. But then again, the manual authoring for the unique pages in option B could be more reliable. I'll have to think this through a bit more.

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Sophia

11 months ago

Hmm, I'm a bit confused by the SAVEPOINT and ROLLBACK commands here. I'll need to walk through the steps to understand how the table is affected at each point.

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Tawna

11 months ago

I remember that in our last review session, we discussed the importance of exit-phase reviews, but I'm not sure if they should be formal or lightweight for this scenario.

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