Discuss Salesforce DEX-450 Exam Topic 7 Question 7

Given the following block code: try{ List retrievedRecords = [SELECT Id FROM Account WHERE Website = null]; }catch(Exception e){ //manage exception logic } What should a developer do to ensure the code execution is disrupted if the retrievedRecordslist remains empty after the SOQL query?

ACheck the state of the retrieveRecords variable and throw a custom exception if the variable is empty.

BCheck the state of the retrievedRecords variable and use System.assert(false) if the variable is empty

CCheck the state of the retrievedRecords variable and access the first element of the list if the variable is empty.

DReplace the retrievedRecords variable declaration from a List of Account to a single Account.

Suggested Answer: B

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13 comments · newest first

Magda 12 months ago

I agree with A, throwing an exception is the best practice here.

Verda 12 months ago

Wait, can you really change the variable type like in D? Sounds risky!

Nobuko 12 months ago

C won't work if the list is empty, that's just wrong.

Cornell 1 year ago

B seems a bit harsh, why assert false?

Andra 1 year ago

A is definitely the way to go! Custom exceptions are useful.

Josphine 1 year ago

I don't think accessing the first element of an empty list is a good idea. That would definitely cause an error.

Lucina 1 year ago

I recall a similar question where we had to handle empty lists, and I think throwing a custom exception was the best practice.

Billy 1 year ago

I think we should check if the retrievedRecords list is empty and throw a custom exception. That seems like the right way to handle it.

Arminda 1 year ago

I'm not entirely sure, but using System.assert(false) feels a bit off for this situation. I remember it being more for testing purposes.

Rolland 1 year ago

I'm pretty confident the answer is B, Evaluation and acceptance. That's the phase where the final system is tested and validated against the original requirements and design. The documentation and training for end users would also happen during this phase before the system is officially accepted.

Elmer 1 year ago

Hmm, this looks like a tricky one. I'll need to carefully read through the options and think about the implications of each.

Belen 1 year ago

I'm not entirely sure about this one. I'll need to think it through carefully and maybe even look up some additional information on key management in the cloud.

Fairy 1 year ago

Hmm, I'm a little unsure about this one. I'll need to think it through carefully to make sure I don't miss anything.

Salesforce DEX-450 Exam - Topic 7 Question 7 Discussion