Salesforce Updated PDI Exam Questions and Answers by remy

Option A: Using variable binding eliminates the need for concatenating dynamic values in the query, which is the safest approach.

Option B: Using String.escapeSingleQuotes ensures special characters are handled safely, reducing the risk of SOQL injection.

Not Suitable:

Option C: While with sharing ensures sharing rules are applied, it does not prevent SOQL injection.

Option D: Regular expressions are not a reliable method for sanitizing input.

Option A: Using a Test Data Factory class is a recommended approach to create test records programmatically. This ensures that the test is independent of existing data and can be executed in isolation.

Option B: The @IsTest(SeeAllData=true) annotation allows the test to access existing records in the database, including Pricing_Structure__c. However, this is less recommended as it creates a dependency on existing org data.

Not Suitable:

Option C: Test.loadData is used to load records from a static resource (CSV) but doesn't suit the requirement directly.

Option D: Adding without sharing to a class impacts sharing rules but does not create or ensure the existence of test data.

Why a try/catch block is required:

In Salesforce, DML operations such as insert, update, delete, and upsert can throw exceptions due to issues like validation rule violations, field constraints, or sharing rule restrictions.

Using a try/catch block ensures that these exceptions are caught and handled gracefully, preventing the entire transaction from failing.

How to modify the code:

The update statement in the code can be wrapped in a try/catch block to catch and handle any exceptions that occur. For example:

apex

Copy code

public static void insertAccounts(List theseAccounts) {

try {

for (Account thisAccount : theseAccounts) {

if (thisAccount.website == null) {

thisAccount.website = 'https://www.demo.com ';

}

}

update theseAccounts;

} catch (DmlException e) {

System.debug('DML Exception: ' + e.getMessage());

}

}

Why not the other options?

A. Implement the upsert DML statement:

upsert is used to either insert or update records based on an external ID or primary key. It does not inherently handle exceptions.

B. Implement Change Data Capture:

Change Data Capture (CDC) is used for tracking changes to data in real time and is unrelated to handling DML exceptions.

D. Remove null items from the list of Accounts:

While cleaning the input data is a good practice, it does not address the need for exception handling during DML operations.

References:

Apex Error Handling

DML Operations in Apex

SFDX CLI (A):Salesforce CLI allows the automation of deployment scripts to sandboxes. Using commands like sfdx force:source:deploy, developers can deploy metadata directly from source control.