Write a Apex trigger to Add the Contact First Name and Last Name to Associated Account Custom Field Whenever the Contact inserted or Updated in Salesforce | Trigger to update Associated Account Custom Field

Apex triggers enable you to perform custom actions before or after changes to Salesforce records, such as insertions, updates, or deletions. A trigger is Apex code that executes before or after the following types of operations: insert. update. delete.

Before insert: When using this event, the code block is executed before a new record is inserted. Before update: When you use this event, the code gets executed before a new record is updated in the object. Before delete: When you're using this event, the record gets deleted before the execution of the code block.

All triggers are bulk triggers by default, and can process multiple records at a time. You should always plan on processing more than one record at a time. An Event object that is defined as recurring is not processed in bulk for insert , delete , or update triggers.