Node.js with PostgreSQL — pg driver vs Knex for SQL queries that don't sink your revenue
Your Node.js backend works, but every query to the database feels like negotiating with a supplier who never replies. Re...
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#PostgreSQL
PgBouncer and Connection Limits — How to Stop PostgreSQL from Crashing Under Load
Your backend is timing out, queries are getting slow, and in the logs there's an error you know all too well: "sorry, to...
MySQL vs PostgreSQL — Performance, Cost and Scalability Comparison for Your Project
You have a web project to build and need to choose a database. MySQL or PostgreSQL? It's not a trivial question. Every t...
SQL ACID Transactions — How to Ensure Data Integrity and Handle Concurrency in Your Database
Your database loses data when two customers try to buy the last product at the same time? Or a mid-payment error leaves...
Event Sourcing and CQRS — Why Your Microservices Need Immutable Events
The problem is as old as relational databases: you update a record, you lose history. An order changes status, a price g...
PostgreSQL Window Functions — OVER, PARTITION BY, ROW_NUMBER for Data Analysis Without Subqueries
Ever tried to calculate the average salary per department while keeping every employee row visible? With GROUP BY you lo...
AWS Managed Database with RDS and Aurora — Performance, Costs and Configuration for Developers
Is your application database starting to choke under load? Manual backups, slow queries, and fear of downtime? Switching...
Node.js Backend — Why JavaScript on the Server for Your Business
What is Node.js backend and how does it work?If your application needs to handle many concurrent requests — from mobile...
MySQL and PostgreSQL Indexes — How They Work and When to Create Them for Real Performance
Your database is slow. A query that should take milliseconds keeps you waiting seconds, sometimes minutes. The client co...
SQL and Relational Databases — Queries, Optimization, and Choosing Between MySQL and PostgreSQL for Code That Delivers Value
Have you ever waited seconds for a report that should load in milliseconds? Or lost data because a backup wasn't configu...
PostgreSQL Full-Text Search: Operative Guide to tsvector, tsquery, and Ranking
Have you ever searched for a product in your database with WHERE name LIKE '%shoe%' and waited seconds, only to get inco...
Advanced PostgreSQL: The Definitive Guide to Performance, JSONB, Full-Text Search and Replication
Your database is slowing down as traffic grows. Queries that worked fine on MySQL now take seconds. Or you need semi-str...
