Parottasalna Course Notes

📝 Parottasalna Blog

248 practical articles on backend engineering, system design, databases, Docker, Python, AI and DSA, explained simply.

9 articles tagged #PostgreSQL · Clear filters

Database Management

PostgreSQL Backups: Protecting Your Data Like an Architect

When you run a database, your data is everything. It powers your applications, analytics, and often, your entire business. Now imagine a sudden power…

Nov 5, 2025 · 3 min read
Learning

📊 Learn PostgreSQL in Tamil: From Zero to 5★ on HackerRank in Just 10 Days

PostgreSQL is one of the most powerful, stable, and open-source relational database systems trusted by global giants like Apple, Instagram, and Spoti…

May 25, 2025 · 2 min read
Database Bootcamps

🎯 PostgreSQL Zero to Hero with Parottasalna – 2 Day Bootcamp (FREE!) 🚀

Databases power the backbone of modern applications, and PostgreSQL is one of the most powerful open-source relational databases trusted by top compa…

Mar 2, 2025 · 1 min read
Database

Learning Notes #51 - Postgres as a Queue using SKIP LOCKED

Yesterday, i came across a blog from inferable.ai https://www.inferable.ai/blog/posts/postgres-skip-locked , which walkthrough about using postgres a…

Jan 11, 2025 · 3 min read
Database

Learning Notes #35 - Durability in ACID | Postgres

As part of ACID series, i am refreshing on topic Durability. In this blog i jot down notes on durability for better understanding. What is Durability…

Jan 4, 2025 · 3 min read
Database

Learning Notes #34 - Consistency (Correctness) in ACID | Postgres

As part of the ACID Series, i am refreshing on consistency. In this blog, i jot down notes on consistency (correctness) in postgres database. What is…

Jan 4, 2025 · 3 min read
Database

Learning Notes #33 - Isolation in ACID | Postgres

This is a continuation of A CID Series. In this blog i jot down notes on Isolation in ACID for better understanding. Isolation is one of the core pro…

Jan 4, 2025 · 4 min read
Database

Learning Notes #21 - Sharding (database) with Postgres

…contd. Early Morning today, i watched a video on partitioning and sharding. In that video, Arpit explained the limitation of Vertical Scaling and wa…

Dec 31, 2024 · 2 min read
Database

Postgres - Write-Ahead Logging (WAL) in PostgreSQL

Write-Ahead Logging (WAL) is a fundamental feature of PostgreSQL, ensuring data integrity and facilitating critical functionalities like crash recove…

Nov 16, 2024 · 4 min read