Tag: etl
Browse 12 practical software engineering resources tagged with "etl". Discover code recipes, design patterns, documentation templates, and in-depth guides to help you build, deploy, and maintain production-ready solutions involving etl. Each resource is written for engineers who ship real systems, with copy-paste examples and practical trade-offs.
Extract, Transform, Load
ETL is the process of moving data from sources to a target data store through extraction, transformation, and loading. It remains the backbone of data warehouses, reporting, and analytics.
The resources below cover ETL patterns, batch vs streaming, schema mapping, data quality, incremental loads, and error handling. Each guide explains how to build ETL pipelines that are maintainable and auditable.
Every resource includes clear explanations, copy-paste code, and practical warnings. Use them to make informed decisions, avoid production pitfalls, and speed up your delivery. If you are just getting started, read the beginner-friendly articles first; if you are experienced, jump straight to the advanced patterns and architecture guides. New resources are added regularly, so bookmark this page and check back for the latest patterns.
Batch Processing Patterns
Design reliable batch processing pipelines for large datasets with retry logic, idempotency, and...
Schedule and Monitor DAGs with Apache Airflow
Define, schedule, and monitor Airflow DAGs with operators, sensors, XCom, task dependencies, and...
Build an ETL Pipeline with pandas and Parquet
How to build an extract-transform-load pipeline using pandas for data processing and Parquet for...
Data Lineage Tracking: Track Origin End-to-End
How to track data origin and transformations end-to-end. Covers column-level lineage, OpenLineage,...
ETL Extract-Transform-Load
How to build ETL pipelines with extract, transform, and load stages. Covers staging tables,...
Idempotent Load: Re-run Data Loads Safely Without Duplicates
How to re-run data loads safely without duplicates. Covers deduplication keys, MERGE upserts, load...
Data Pipeline Design Document Template
A template for documenting data pipeline sources, transformations, sinks, scheduling, error...
Data Quality Rules Template: SQL, dbt & Great Expectations
A copy-paste template for defining data validation rules per dataset and column, with severity...
ETL Job Runbook Template
A runbook for operating, monitoring, and troubleshooting ETL jobs: startup, shutdown, health...
Data Migration Runbook Template with Rollback Steps
Use this data migration runbook template to plan safe migrations. Includes pre-migration checks,...
Data Lake vs Data Warehouse — Architecture Guide
How data lakes store raw data at scale: medallion zones, lakehouse tables, ETL vs ELT,...
ETL Pipelines: Extract, Transform, Load for Data Engineers
A practical guide to ETL pipelines: extracting data from multiple sources, transforming with...