Posted inDatabase
PostgreSQL WAL: Production Lessons on Performance and Recovery
PostgreSQL WAL is more than just a log; it's the key to performance and data safety. Explore production-tested configurations, PITR setups, and monitoring tips.
Posted inDatabase
PostgreSQL Performance Analysis with pg_stat_statements: Find and Fix Slow Queries
pg_stat_statements is a built-in PostgreSQL extension that tracks aggregated execution statistics for every query — total time, call count, cache hit rate, and more. This guide walks through enabling it, querying the data to find your worst bottlenecks, and turning those stats into concrete index and query optimizations for production.
Posted inDatabase
Scaling Database Performance: A Practical Guide to Read Replicas in PostgreSQL and MySQL
Is your database hitting 100% CPU? This guide shows you how to implement Read Replicas in PostgreSQL and MySQL to offload traffic and keep your app fast.
Posted inDatabase
Scaling PostgreSQL Beyond a Single Node: A Practical Citus Guide
Is your PostgreSQL database hitting its limits? Learn how to scale horizontally using Citus to distribute data across multiple nodes and run parallel queries for massive performance gains.
Posted inDatabase
Soft Delete Pattern in Database: Safe Record Deletion, Recovery, and Index Optimization with PostgreSQL and MySQL
Soft delete pattern lets you mark records as deleted instead of physically removing them — enabling safe recovery, audit trails, and GDPR-compliant data retention. This guide covers practical implementation in PostgreSQL and MySQL, including partial indexes, unique constraint handling, and cleanup strategies.
Posted inDatabase
Optimistic Locking vs Pessimistic Locking: Handling Concurrent Database Access in Real Applications
After six months of handling race conditions in a production e-commerce app, here's a practical breakdown of optimistic vs pessimistic locking — when to use each, the real trade-offs, and working Python/PostgreSQL code you can drop into your project.
Posted inDatabase
Database Testing with pgTAP in PostgreSQL: A Guide to Unit Testing Functions, Triggers, and Schema
Learn how to use pgTAP to write native unit tests for PostgreSQL. This guide covers testing database schema, functions, and triggers to ensure your data logic remains robust and bug-free.
Posted inDatabase
PostgreSQL Bulk Imports: How to Move Millions of Rows Without the Wait
Tired of slow database migrations? Learn how to use the COPY command, multi-row inserts, and WAL tuning to import millions of records into PostgreSQL in minutes.
Posted inDatabase
Beyond Lat/Lon: A Pro Guide to Mastering PostGIS on PostgreSQL
Learn how to move beyond basic latitude and longitude storage. This guide covers PostGIS installation, GEOGRAPHY vs GEOMETRY types, and how GIST indexing can make your spatial queries 100x faster.
Posted inDatabase
Zero-Downtime Database Upgrades: A Survival Guide to Blue-Green Deployment
Forget the 2 AM panic. I walk through how to use Blue-Green deployment and logical replication to upgrade PostgreSQL and MySQL with zero downtime and total control.