Use MERGE (upsert) for safe, rerunnable data pipelines that handle duplicates gracefully.
Calculate running totals, rankings, and moving averages efficiently with SQL window functions.
Gradually replace legacy systems by routing traffic to new implementations incrementally.
Share common code and dependencies across Lambda functions to reduce deployment size.
Prevent cascade failures by implementing circuit breaker pattern for external service calls.
Catch vulnerabilities early by integrating security scanning into your CI workflow.
