Schema Drift Handling

This skill is covered in detail in the main Schema Drift Detection skill.

Please refer to: 43-data-reliability/schema-drift/SKILL.md

That skill covers:

• What is schema drift and why it matters
• Types of schema changes (column added/removed, data type changed, constraints, table renamed/dropped)
• Schema drift detection (automated monitoring, version tracking, change detection)
• Schema evolution strategies (backward compatibility, forward compatibility, schema versioning)
• Handling schema changes (graceful degradation, data migration, pipeline adaptation)
• Tools and techniques (dbt schema tests, Great Expectations, Monte Carlo, Kafka Schema Registry, Protobuf/Avro)
• Schema change notification (alerts, change logs, impact analysis)
• Database migration best practices (migrations in version control, rolling migrations, zero-downtime)
• Schema documentation (data dictionary, schema changelog, ERD diagrams)
• Testing schema changes
• Real schema drift incidents

Related Skills

• 43-data-reliability/schema-drift (Main skill)
• 43-data-reliability/schema-management
• 43-data-reliability/data-contracts