Apex for Absolute Beginners
08 · Quiz: are you ready for production?
Twelve questions covering the whole course. Pass this and your first real trigger is next week's problem.
Apex for Absolute Beginners
Apex for Absolute Beginners
07 · Testing: proving it works
75% coverage is the law, but coverage is not the point — assertions are. Write a test that would actually catch a bug.
Apex for Absolute Beginners
06 · Governor limits explained
100 queries, 150 DML statements, 10 seconds of CPU — the limits are not obstacles, they are the platform's design language.
Apex for Absolute Beginners
05 · Triggers, the safe way
Watch a before-insert trigger written live: one trigger per object, logic in a handler class, bulk-safe from the first line.
Apex for Absolute Beginners
04 · DML and the database
insert, update, upsert, delete — and what happens to the transaction when one record out of two hundred fails.
Apex for Absolute Beginners
03 · SOQL: asking the database questions
SELECT is not SQL — no joins, no wildcards, relationship dots instead. Write your first twenty queries in the Query Editor.
Apex for Absolute Beginners
02 · Variables, types and collections
Lists, Sets and Maps do ninety percent of the work in real Apex. Learn the three of them properly and the rest is syntax.
Apex for Absolute Beginners
01 · Hello, Apex: your first class
Open the Developer Console, write ten lines, run them anonymously — and understand every one of them.
Apex for Absolute Beginners
Apex for Absolute Beginners
You have never written code, or never written Apex. Eight lessons later you will have a tested trigger running in your own org.