This post teaches the core Salesforce Apex language fundamentals you must know: syntax basics, classes/methods/constructors, method overloading, collections (List/Set/Map), SOQL + DML, exception handling, access modifiers, and the #1 bulk pattern (Ids → Query → Map → Apply → DML). It also includes a beginner mistake checklist and interview questions....
In Salesforce development — whether you’re working with Apex, LWC, Visualforce, or external integrations — even small mistakes can create serious security risks. Poor handling of user input or secrets can lead to data exposure, code execution, or unauthorized access. To protect your Salesforce org, there are three essential security...
Building reliable Salesforce integrations means balancing security, user experience, and resilience. You want secure authentication, non-blocking calls for the UI, and smart retry logic that doesn’t break governor limits. In this guide, we’ll walk through how to achieve all three using: Named Credentials for configuration-based security OAuth/JWT for headless authentication...
In Salesforce Apex, building a reliable error-handling strategy means doing more than just catching exceptions. You need to: Fail fast to block bad data before it hits the database, Use custom exceptions that make intent clear, Tag each transaction with a correlation ID for traceability, and Emit structured telemetry for...
In Salesforce development, secure Apex means two things: Enforcing record access through with sharing, without sharing, or inherited sharing. Enforcing object and field-level permissions using CRUD/FLS checks. Apex doesn’t automatically verify these for you—you have to do it.The safest, most reliable pattern is to use with sharing by default and...
Salesforce Platform Cache (Org & Session) is an easy win when you want faster reads, fewer API calls, and smoother traffic spikes—without spinning up your own cache layer. The key is to use safe, predictable patterns (cache-aside/read-through, versioned keys, event-driven invalidation) so you don’t accidentally serve stale or inconsistent data....
Salesforce gives you two solid ways to find data: SOQL for precise, table-style queries, and SOSL for full-text, cross-object search. Layer on smart search tuning (filters, wildcards, snippets) to surface relevant results quickly. And for read-heavy orgs, Skinny Tables can help — but they have trade-offs and should be used...
Fast, reliable Apex leans on three pillars: relationship queries, aggregate SOQL, and thoughtful subqueries—while steering clear of N+1 patterns. Nail these and your code stays bulkified, selective, and governor-limit friendly. Relationship SOQL (child → parent): follow lookups with dot notation Concept: Pull fields from a parent record in the same...
If you want blazing-fast SOQL, your filters have to be selective. In practice, that means your WHERE clause narrows things enough for Salesforce to rely on an index. Use the Query Plan tool to see what the optimizer intends to do and shape your filters to hit standard, custom, or...
Salesforce follows a strict, predictable process when saving data. Each step is carefully designed to ensure that operations either succeed completely or fail safely—without leaving your data corrupted. These core concepts—Order of Execution, Transactions, Locking, Savepoints, and Partial Success—form the foundation for reliable automation and error handling. Together, they give...
