May 2019
Intermediate to advanced
546 pages
12h 41m
English
Content preview from Salesforce Platform Developer I Certification Guide
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Apex triggers
Next, to the Apex class. We use the Apex language also to create complex logic during an event. Imagine a user creates a new actor and wants to verify the actor details with an external database. You can translate this user action as the following event—after inserting an actor, make a callout to a database and add the details of the actor (such as their birthday, male/female, the color of their eyes, and so on). This means that you need to perform an action after the insertion of a record. That's what we call a trigger.
A Salesforce trigger is only executed before or after a DML operation. Yes, it can be before and after. You will learn that in The order of execution of a DML statement section. When a user inserts a new record, ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.