Apex Fundamentals
Core Apex programming — classes, interfaces, triggers, governor limits, and order of execution.
Core Apex programming — classes, interfaces, triggers, governor limits, and order of execution.
How to safely implement bidirectional field synchronization between integration APIs and UI users without creating infinite trigger loops.
How trigger-based default field logic can interfere with record cloning, and patterns to detect and handle clone operations safely.
Design patterns for auto-populating fields on record creation while preserving user modifications on subsequent updates.
How to structure trigger handler logic in multiple passes when later fields depend on earlier fields being resolved first.
How to prevent stale rollup values by initializing parent fields to zero before running aggregate queries, especially when all child records are deleted.
How to structure Apex tests for systems where triggers enqueue Queueable jobs, including test setup patterns, async execution, and edge case coverage.
How to replace per-record SOQL queries with a single bulk query and Map-based lookups to stay within governor limits.
How to accumulate record IDs across multiple trigger chunks and enqueue a single Queueable job for efficient bulk processing.