Designing Sync and Async Apex: When Operations Must Run in Sequence
Understanding the distinction between synchronous and asynchronous Apex execution contexts, and how to decide what runs inline vs. in a Queueable or future method.
5 docs tagged with "pd1"
View all tagsFlow Loops and Collection Variables: Avoiding the Single-Variable Trap
Why using a single record variable inside a Flow loop overwrites data on each iteration, and how to correctly build collections using the Add operator.
HTTP Callouts and DML: The Transaction Order Trap
Understanding why performing DML before an HTTP callout throws an uncommitted work error, and how to structure your Apex transactions to avoid it.
INSERT-Only vs. UPDATE Logic in Apex Triggers
Design patterns for auto-populating fields on record creation while preserving user modifications on subsequent updates.
The Bulkified Query-Map Pattern: Avoiding N+1 SOQL in Triggers
How to replace per-record SOQL queries with a single bulk query and Map-based lookups to stay within governor limits.