Collections are one of the most important concepts in Salesforce Apex—and one of the biggest differentiators between beginner and professional Salesforce developers. If you’ve ever struggled with Lists, Sets, Maps, nested loops, SOQL inside loops, duplicate records, trigger optimization, or governor limits, this course is designed for you.
Unlike courses that only explain the syntax, this masterclass focuses on understanding how Collections are actually used in real Salesforce projects. Every topic is taught through practical examples, coding demonstrations, interview scenarios, and real business use cases. Throughout this course, you’ll learn how to write clean, efficient, and scalable Apex code while following Salesforce best practices.
What you’ll learn:
- Master Lists, Sets, and Maps in Apex
- Understand when and why to use each Collection
- Write bulkified Apex code using Collections
- Eliminate SOQL and DML inside loops
- Optimize Apex Triggers using Maps
- Group and organize records efficiently
- Perform deduplication and record matching
- Build parent-child data structures
- Use Maps inside Maps for advanced scenarios
- Improve code performance and governor limit efficiency
- Solve real Salesforce business problems
- Prepare for Salesforce Developer interviews with practical coding examples
