Differences between Before and After triggers:

The main differences between Before Triggers and After Triggers are as follows:

Execution Timing: 

Before Triggers are executed before the database operation is performed, while After Triggers are executed after the database operation is performed.

Access to Records: 

Both Before Triggers and After Triggers have access to both the old and new versions of the record, allowing developers to perform actions based on the record data. However, Before Triggers can modify the record data before it’s saved to the database, while After Triggers can only access the record data after it’s saved to the database.

Validation Rules: 

Before Triggers can be used to enforce validation rules, such as ensuring that certain fields are populated before a record is saved, while After Triggers cannot enforce validation rules.

Purpose: 

Before Triggers are used to enforce data validation rules and to modify the record data before it’s saved to the database, while After Triggers are used to perform additional actions after a record is saved, such as updating other records or sending notifications.

Order of Execution: 

The order of execution of Before Triggers and After Triggers can be controlled using the order of execution, which defines the order in which triggers are executed for a given record operation. Before Triggers are executed before After Triggers for a given record operation.