Decodeforce

Salesforce apex developers tutorial

Salesforce, the #1 CRM platform, helps businesses of all sizes thrive. But every business has unique needs, and that's where salesforce developers come in — building custom solutions to meet those challenges.

This beginner-friendly tutorial will help you confidently take your first steps into salesforce customization using apex. Think of apex as the language of Salesforce — it's how you build, customize, and automate within the platform.

The aim of this course is to teach the essentials of Apex programming so that you can start attending interviews in three months. The following are the important topics for you to learn:

Apex Learning Journey

Master Salesforce Apex programming with our structured learning path

Data Types

Level 1

Learn the fundamental data types in Apex and how to work with them effectively.

Beginner
1 - 2 weeks
Subtopics:
Boolean
Integer
String
Date
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Collections

Level 2

Master different collection types and their specific use cases in Apex.

Beginner-Intermediate
2 - 3 weeks
Subtopics:
List
Set
Map
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Conditional Statements

Level 2

Learn how to control program flow using various conditional statements.

Intermediate
1 week
Subtopics:
If-Else
Switch Statements
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Loops

Level 3

Understand different types of loops and their implementation in Apex.

Intermediate
1 week
Subtopics:
for loop
Iterating collections
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SOQL & DML

Level 4

Master database operations and querying in Salesforce using Apex.

Advanced
2 - 3 weeks
Subtopics:
SOQL Queries
Insert
Update
Delete
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Triggers

Level 5

Learn how to automate processes using Salesforce Triggers in Apex.

Expert
2 - 3 weeks
Subtopics:
Trigger Syntax
Trigger Events
Before Triggers
After Triggers
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Your Learning Progress

Track your advancement through each Apex programming topic

Data Types
Level 1
20%
Collections
Level 2
35%
Conditional Statements
Level 2
50%
Loops
Level 3
65%
SOQL & DML
Level 4
80%
Triggers
Level 5
100%

By end of completing this tutorial, you will learn:

  • Master Essential Data Types

    Strings for text, dates for calendars, list & sets for collections and maps for quick lookups — these tools are the backbone of apex.

  • Control program execution and loops

    Learn to use conditional statements to implement decision-making logic, and utilize loops to efficiently iterate through sets of records in Apex.

  • Write Efficient Queries

    SOQL is like a shopping list—it fetches exactly what you need, while DML handles updates and changes effortlessly.

  • Build Powerful Triggers

    Triggers act like automated helpers, running tasks such as notifying teams or updating records behind the scenes.

  • Learn Through Real Practice

    Every tutorial comes with assignments to test your knowledge. If you make mistakes, automated checks guide you back on track — like having a mentor by your side.