ETL Pipeline Comprehensive skill for designing and automating Extract, Transform, Load data pipelines. Pipeline Architecture Core ETL Flow Source Connectors Database Connections API Sources Transformation Layer Common Transformations Aggregation Rules Join Operations Load Strategies BigQuery Load Snowflake Load Pipeline Orchestration DAG Definition Error Handling Data Quality Validation Rules Quality Metrics Dashboard Monitoring & Alerting Pipeline Metrics Alert Configuration Best Practices 1. Incremental Loading : Use incremental extraction when possible 2. Idempotency : Ensure pipelines can…