Скачать или смотреть Trigger.Old | Salesforce Development Tutorial 2025

In this comprehensive tutorial, we explore the key context variables in Salesforce triggers: trigger.old and trigger.new. Discover how trigger.new returns the new SObject records that initiated the trigger execution, while trigger.old provides the previous versions. We'll walk you through practical examples and use cases, including preventing updates to specific fields. Learn to use trigger variables effectively and prevent unwanted database operations.


Questions Covered In the Video:

How do trigger.old and trigger.new differ in Salesforce?
What is the purpose of trigger.old and trigger.new?
How can I use trigger.old and trigger.new to prevent updates to specific fields?
What are the limitations of trigger.old and trigger.new?
How to show trigger exceptions in Salesforce?


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