PDI Exam Questions Tutorials

Why Quick Actions?

Quick Actions allow developers to create prepopulated forms for creating or updating records.

They are a modern alternative to JavaScript buttons in Lightning Experience.

Why Not Other Options?

A: Validation rules enforce data integrity but do not create records.

B: Apex triggers automate processes but are not used for user-initiated actions.

C: Record-triggered flows execute automatically when records are created or updated, but they do not replace JavaScript buttons for user-initiated actions.

Quick Actions:

References:

Database.insert(records, false):

The Database.insert() method with the allOrNone parameter set to false allows for partial success.

If some records in the list fail due to validation rules, triggers, or other errors, the method will still attempt to insert the remaining valid records.

The false parameter ensures that records that fail will not roll back the transaction for the others.

Why not the other options?

A. Database.insert(records, true):

The true parameter makes the operation transactional (all or none). If any record fails, all records will roll back.

B. insert records:

The insert DML statement behaves like Database.insert(records, true) by default and rolls back all records if any error occurs.

C. insert(records, false):

This syntax is invalid in Apex.

References:

Apex DML Operations Documentation

Database Methods

Performing queries inside a loop can lead to governor limit exceptions due to too many SOQL queries in a single transaction. Instead, perform queries outside loops.

In Visualforce, to specify a standard controller for a custom object, the syntax is controller="ObjectName__c".

To add custom functionality, you can use an extensions attribute to include a controller extension.

Why not other options?

A: The correct syntax is controller, not standardController, for custom objects.

B and C: These are syntactically incorrect.

References:

Visualforce Pages Documentation