Salesforce Updated PDI Exam Questions and Answers by teodora

B: Using partial DML statements (e.g.,Database.insert(list, false)) allows only valid records to be committed while identifying invalid ones, avoiding runtime errors.

D: TheDatabase.Savepointmethod ensures transactional control by allowing rollback to a specific savepoint if an error occurs.

Why not other options?

A: The@ReadOnlyannotation is for read-only operations and would not allow DML operations.

C: TheSystem.Limitclass helps monitor limits but does not directly control transaction behavior.

Best Practices for Apex Transactions

Unit Test Scenarios:

Option Bis valid becausegetContentAsPDF()can generate PDF content for testing purposes.

Why Not Other Options?

A: Unit tests cannot execute anonymous Apex as a different user.

C: Unit tests cannot perform callouts unless mock responses are provided.

D: TheSystem.createdDatefield cannot be set manually in unit tests.

Change sets can only be used between related organizations:

Change sets require a relationship between the source and target Salesforce orgs, such as a production org and its sandboxes. You cannot use change sets between unrelated Salesforce orgs.

Order of Execution Rules:

Step 1: Original record is loaded from the database.

Step 2: Field-level validations are performed, including maximum field lengths.

Step 3: Old values are overwritten with new record values.

Step 4: JavaScript validation runs in the browser.