766 tutorials · free to read
A working handbook for data and software engineering.
Hands-on tutorials by Alex Merced on Apache Iceberg, the data lakehouse, pipelines, agentic AI, and the languages and tools that hold it all together.
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Latest tutorials
Page 67 of 128- 01Pipeline Observability: Know When Things BreakAn analyst messages you on Slack - The revenue numbers look wrong. Is the pipeline broken? You check the orchestrator - all green. You check the target table...Data EngineeringFeb 19, 2026
- 02Data Engineering Best Practices: The Complete ChecklistBest practices documents are easy to write and hard to use. They list principles without context, advice without prioritization, and rules without explaining...Data EngineeringFeb 19, 2026
- 03What Is Data Modeling? A Complete GuideEvery database, data warehouse, and data lakehouse starts with the same question: how should this data be organized? Data modeling answers that question by c...Data ModelingFeb 19, 2026
- 04Conceptual, Logical, and Physical Data Models ExplainedMost data teams jump straight from a stakeholder request to creating database tables. They skip the planning steps that prevent misalignment, redundancy, and...Data ModelingFeb 19, 2026
- 05Star Schema vs. Snowflake Schema: When to Use EachBoth star schemas and snowflake schemas are dimensional models. They both organize data into fact tables (measurable events) and dimension tables (context ab...Data ModelingFeb 19, 2026
- 06Data Modeling for the Lakehouse: What ChangesTraditional data modeling assumed you controlled the database. You defined schemas up front, enforced foreign keys at write time, and optimized with indexes....Data ModelingFeb 19, 2026