https://kedar-khedkar.github.io/KKnotes: A data engineer's guide to GCP, data engineering, ETL/ELT pipelines, and home lab projects. Explore tutorials, architectures, and hands-on learnings from Kedar Khedkar. 2026-07-24T11:13:00+05:30 Kedar Khedkar https://kedar-khedkar.github.io/ Jekyll © 2026 Kedar Khedkar /assets/img/favicons/favicon.ico /assets/img/favicons/favicon-96x96.png 2026-07-24T15:30:00+05:30 2026-07-24T15:30:00+05:30 https://kedar-khedkar.github.io/posts/sql-normalization-1nf-2nf-3nf-bcnf/ kedarkhedkar

Learn SQL normalization from scratch. Covers 1NF, 2NF, 3NF, and BCNF with step-by-step table examples, anomaly fixes, and when to denormalize.

2026-07-24T15:30:00+05:30 2026-07-24T15:30:00+05:30 https://kedar-khedkar.github.io/posts/sql-group-by-aggregation-guide/ kedarkhedkar

Master SQL GROUP BY and aggregation functions — COUNT, SUM, AVG, MIN, MAX, HAVING, and ROLLUP with real query examples and common pitfalls explained.

2026-07-24T15:30:00+05:30 2026-07-24T15:30:00+05:30 https://kedar-khedkar.github.io/posts/scd-types-slowly-changing-dimensions-guide/ kedarkhedkar

Understand SCD Types 0, 1, 2, 3 and 6 in data engineering. Covers implementation strategies, SQL examples, and when to use each in modern data warehouses.

2026-06-27T15:30:00+05:30 2026-07-24T10:30:06+05:30 https://kedar-khedkar.github.io/posts/arr-stack-raspberry-pi5-media-server/ kedarkhedkar

Set up a full Arr media stack on Raspberry Pi 5 with Docker. Covers Sonarr, Radarr, Prowlarr, qBittorrent, and Jellyfin for a complete self-hosted setup.

2026-05-25T15:30:00+05:30 2026-07-24T10:38:13+05:30 https://kedar-khedkar.github.io/posts/data-warehousing-complete-guide-engineers/ kedarkhedkar

A complete data warehousing guide for data engineers covering architecture, ETL vs ELT, schema design, BigQuery, and modern warehouse best practices.