Discuss Salesforce DEX-450 Exam Topic 7 Question 39

A developer has to Identify a method in an Apex class that performs resource intensive actions in memory by iterating over the result set of a SOQL statement on the account. The method also performs a DML statement to save the changes to the database. Which two techniques should the developer implement as a best practice to esure transaction control and avoid exceeding governor limits? Choose 2 answers

AUse the Database.Savepoint method to enforce database integrity. (Missed)

BUse the System.Limit class to monitor the current CPU governor limit consuption. (Missed)

CUse the @ReadOnly annotation to bypass the number of rows returned by a SOQL.

DUse Partial DML statements to ensure only valid data is committed.

Suggested Answer: A, B

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12 comments · newest first

Wynell 12 months ago

Wait, can you really bypass row limits with @ReadOnly? That’s surprising!

Arlette 12 months ago

Partial DML statements sound interesting, but do they really help?

Long 12 months ago

@ReadOnly annotation? Not sure that’s the right approach.

Rene 1 year ago

I think monitoring with System.Limit is a must too.

Shenika 1 year ago

Definitely need to use Database.Savepoint for integrity!

Isabelle 1 year ago

Partial DML statements sound familiar, but I can't recall if they really help with governor limits or just data integrity.

Marsha 1 year ago

I’m a bit confused about the @ReadOnly annotation. I thought it was more about performance rather than limiting rows returned.

Terrilyn 1 year ago

I think we practiced a question about monitoring governor limits with System.Limit, which seems relevant for this scenario.

Sherita 1 year ago

I remember discussing the importance of using Database.Savepoint for transaction control, but I'm not sure if it's the best choice here.

Cheryll 1 year ago

This question seems pretty straightforward. I'll carefully read through the options and try to eliminate the ones that are clearly false.

Pamella 1 year ago

Option D looks good to me. Checking the recommended firmware levels in the HP SAN Design Reference Guide is probably the best way to ensure everything is compatible.

Farrah 1 year ago

I remember practicing with questions about CPM, and I feel pretty confident it's true that it's about paying for a million views, like in this question.

Salesforce DEX-450 Exam - Topic 7 Question 39 Discussion