May 2019
Intermediate to advanced
546 pages
12h 41m
English
Content preview from Salesforce Platform Developer I Certification Guide
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Validation rules
Validation rules are used to make sure that the data entered in fields adheres to the standards you have specified for your business.; for example, making sure that phone numbers always have the same format, or that a field cannot be left blank based on the input or value of another field. If a value does not meet your validation rules, then the user will not be able to save the record. A validation rule is made of a formula or expression to check the criteria and an error message, which will be shown to the user if the values do not meet your specified criteria. The formula evaluates the data in one or more fields, and then returns either true or false. Validation rules ensure data quality in your org.
If the formula returns ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.