Master Salesforce & Apex with the Interactive Editor
SOQL, DML & the order of execution, governor limits & bulkification, triggers & the trigger context, the Trigger Handler pattern, test classes & assertions, security (CRUD/FLS, with sharing, WITH SECURITY_ENFORCED), collections (List/Set/Map), SOSL vs SOQL, and asynchronous Apex (Future/Queueable/Batch). 10 lessons with real Apex and instantly graded exercises.
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- Step 1
Salesforce 1: SOQL — Querying Your Data
SOQL (Salesforce Object Query Language) is how Apex reads records. It looks like SQL but only ever r...
Start Lesson - Step 2
Salesforce 2: DML & the Order of Execution
DML (Data Manipulation Language) is how Apex writes records: `insert`, `update`, `upsert`, `delete`,...
Start Lesson - Step 3
Salesforce 3: Governor Limits & Bulkification
Because thousands of companies share Salesforce's servers, no single transaction may hog resources. ...
Start Lesson - Step 4
Salesforce 4: Triggers & the Trigger Context
A trigger is Apex that fires automatically when records are saved. You declare which events it liste...
Start Lesson - Step 5
Salesforce 5: The Trigger Handler Pattern
Putting business logic directly in a trigger file gets unmaintainable fast — no order control, hard ...
Start Lesson - Step 6
Salesforce 6: Apex Test Classes & Assertions
Salesforce won't deploy Apex to production without 75% code coverage and passing tests. Test classes...
Start Lesson - Step 7
Salesforce 7: Security — CRUD/FLS & Sharing
Apex runs in **system mode by default** — it ignores the running user's permissions unless you opt i...
Start Lesson - Step 8
Salesforce 8: Collections — List, Set & Map
Apex has three collection types and bulk code lives and dies by choosing the right one. `List` is an...
Start Lesson - Step 9
Salesforce 9: SOSL vs SOQL
SOQL queries one object's fields with precise filters. SOSL (Salesforce Object Search Language) does...
Start Lesson - Step 10
Salesforce 10: Asynchronous Apex — Future, Queueable & Batch
Some work shouldn't run inside the user's synchronous transaction: long callouts, heavy DML, or proc...
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