Exam Plat-Dev-301 Topic 1 Question 70 Discussion

Actual exam question for Salesforce's Plat-Dev-301 exam
Question #: 70
Topic #: 1
Which code snippet processes records in the most memory efficient manner, avoiding governor limits such as "Apex heap size too large"?
A)

B) C)

D)

Suggested Answer: D Vote an answer

Option D, which uses the Database.query() method in combination with a for loop, is the most memory-efficient way to process records. This is known as the Query Locator pattern, which allows you to work with a large number of records by querying them in batches. This approach helps to avoid hitting the governor limit for "Apex heap size too large" as it processes one record at a time from the database without storing the entire result set in memory.
Working with Very Large SOQL Queries
Apex Governor Limits

by Lester at May 12, 2026, 05:11 PM

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