Book Image

Salesforce Platform Developer I Certification Guide

By : Jan Vandevelde, Gunther Roskams
Book Image

Salesforce Platform Developer I Certification Guide

By: Jan Vandevelde, Gunther Roskams

Overview of this book

Salesforce Lightning Platform, used to build enterprise apps, is being increasingly adopted by admins, business analysts, consultants, architects, and especially developers. With this Salesforce certification, you'll be able to enhance your development skills and become a valuable member of your organization. This certification guide is designed to be completely aligned with the official exam study guide for the latest Salesforce Certified Platform Developer I release and includes updates from Spring '19. Starting with Salesforce fundamentals and performing data modeling and management, you’ll progress to automating logic and processes and working on user interfaces with Salesforce components. Finally, you'll learn how to work with testing frameworks, perform debugging, and deploy metadata, and get to grips with useful tips and tricks. Each chapter concludes with sample questions that are commonly found in the exam, and the book wraps up with mock tests to help you prepare for the DEV501 certification exam. By the end of the book, you’ll be ready to take the exam and earn your Salesforce Certified Platform Developer I certification.
Table of Contents (15 chapters)
Free Chapter
Section 1: Fundamentals, Data Modeling, and Management
Section 2: Logic, Process Automation, and the User Interface
Section 3: Testing, Debugging, and Exercise
Mock Tests

Schema design and modification impact on Apex development

Previously, we have learned how we can define our data model through the user interface (UI), such as creating new objects and new fields and linking them to each other by creating specific relationships.

When you define objects, fields, and relationships, they become instantly available for you to use in declarative automation features and also in Apex code. Everything defined through the UI can be used programmatically with Apex and Salesforce Object Query Language (SOQL). I'll explain this in more detail in Chapter 4, Apex Basics, under the Working with data in Salesforce section, but, for now, you need to know when objects and/or fields are used/referenced elsewhere in Salesforce.

You won't be able to delete those fields or objects, as Salesforce won't allow that, and it will come up as a big error message...