postgresql - ITNotes

Stop Guessing, Start Measuring: Stress Testing MySQL and PostgreSQL with sysbench

April 4, 2026

Stop guessing your database capacity. Learn how to use sysbench to run professional stress tests on MySQL and PostgreSQL, and how to interpret TPS and 95th percentile latency.

Database

How to Read Execution Plans: Solving the ‘Slow Query’ Mystery in Postgres and MySQL

April 3, 2026

Is your SQL crawling? Stop guessing and start reading Execution Plans. This guide shows you how to use EXPLAIN in PostgreSQL and MySQL to pinpoint bottlenecks like sequential scans and manual file sorts.

Database

Database Monitoring with Prometheus & Grafana: A No-Nonsense Guide

April 3, 2026

Tired of 2 AM outages? Learn to build a professional database monitoring stack using Prometheus and Grafana. This guide covers exporter setup, critical metrics, and production-ready alerting.

Database

Mastering Database Security: User Permissions, SQL Injection, and Data Protection

March 28, 2026

Securing your database is non-negotiable. This tutorial guides you through essential practices, from implementing the principle of least privilege with user permissions to robustly preventing SQL injection attacks. Discover how to encrypt data, manage user roles, and monitor your database effectively to safeguard your critical information.

Database

Database Connection Pooling: Six Months In, Here’s What I Learned

March 21, 2026

Six months into production with database connection pooling, I'm sharing my practical journey. This guide unpacks how it works, its substantial performance gains, and critical configuration insights designed to help your applications scale with confidence.

Database

SQL vs NoSQL: When to Use Which Database (A Practical Guide)

March 16, 2026

SQL and NoSQL databases solve different problems, and picking the wrong one early can cost you later. This guide breaks down the real differences — schema flexibility, scaling, ACID vs eventual consistency — with practical examples and advice on when to use PostgreSQL, MongoDB, Redis, or a combination of all three.

Database

Database Backup & Recovery: Build a Strategy That Holds Up Under Pressure

March 15, 2026

Most database backup strategies fail at recovery time — not because backups don't run, but because nobody tests restores. This guide compares logical dumps, physical backups, WAL streaming, and snapshots, with practical implementation examples for PostgreSQL and MySQL and a concrete monitoring setup to catch silent failures before they become disasters.

Database

Mastering PostgreSQL: Installation and Essential CRUD Operations for Developers

March 13, 2026

Master the fundamentals of PostgreSQL. This guide walks you through installation and essential CRUD operations (Create, Read, Update, Delete) with practical, beginner-friendly examples.

Database

MySQL vs PostgreSQL: Feature Comparison & Use Cases for IT Engineers

March 13, 2026

Choosing the right database is crucial for any IT project. This article provides a comprehensive feature comparison of MySQL and PostgreSQL, detailing their pros, cons, and ideal use cases to help you make an informed decision.

Database

Mastering SQL Query Optimization: A Hands-On Guide to Enhancing Database Performance

March 11, 2026

Is your application crawling? Learn to debug and fix slow SQL queries in MySQL and PostgreSQL. This hands-on guide covers EXPLAIN, strategic indexing, and smart query rewriting, ultimately enhancing your database's performance. Keep your applications fast and users satisfied.