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Salesforce DEX-450 Exam - Topic 7 Question 39 Discussion

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
A) Use the Database.Savepoint method to enforce database integrity. (Missed) and B) Use the System.Limit class to monitor the current CPU governor limit consuption. (Missed)
C) Use the @ReadOnly annotation to bypass the number of rows returned by a SOQL.
D) Use Partial DML statements to ensure only valid data is committed.

Salesforce DEX-450 Exam - Topic 7 Question 39 Discussion

Actual exam question for Salesforce's DEX-450 exam
Question #: 39
Topic #: 7
[All DEX-450 Questions]

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

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Suggested Answer: A, B

by Refugia at May 04, 2022, 04:19 AM

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Wynell
7 months ago
Wait, can you really bypass row limits with @ReadOnly? That’s surprising!
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Arlette
7 months ago
Partial DML statements sound interesting, but do they really help?
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Long
7 months ago
@ReadOnly annotation? Not sure that’s the right approach.
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Rene
8 months ago
I think monitoring with System.Limit is a must too.
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Shenika
8 months ago
Definitely need to use Database.Savepoint for integrity!
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Isabelle
8 months ago
Partial DML statements sound familiar, but I can't recall if they really help with governor limits or just data integrity.
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Marsha
8 months ago
I’m a bit confused about the @ReadOnly annotation. I thought it was more about performance rather than limiting rows returned.
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Terrilyn
8 months ago
I think we practiced a question about monitoring governor limits with System.Limit, which seems relevant for this scenario.
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Sherita
8 months 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.
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Cheryll
8 months ago
This question seems pretty straightforward. I'll carefully read through the options and try to eliminate the ones that are clearly false.
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Pamella
8 months 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.
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Farrah
8 months 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.
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