MySQL Archives - ITNotes

Querying PostgreSQL, MySQL, and MinIO with Trino: A Single SQL Interface for Multi-Source Data Analysis

August 24, 2026

Learn how to use Trino to run federated SQL queries across PostgreSQL, MySQL, and MinIO S3. This guide covers setup, configuration, and performance tips for multi-source data analysis without ETL.

Database

Multi-language Database Design: 3 Proven Strategies for PostgreSQL and MySQL

August 21, 2026

Don't let your database become a bottleneck as you scale globally. Explore the pros and cons of column-based, relational, and JSONB strategies for multi-language support.

Database

Mastering the MySQL Slow Query Log: Stop Guessing and Start Fixing Production Bottlenecks

August 21, 2026

Is your MySQL database dragging? Learn how to use the Slow Query Log to identify hidden performance bottlenecks, configure logging for production, and use tools like pt-query-digest to speed up your app.

Database

MySQL Generated Columns: Speed Up JSON Queries and Clean Up Your Schema

July 27, 2026

Learn how to use MySQL Virtual and Stored Generated Columns to fix slow JSON queries and automate database logic with real-world performance metrics.

Database

Beyond OFFSET: Why Cursor-Based Pagination is the Only Way to Scale APIs

July 21, 2026

Is your API slowing down as your database grows? Discover why OFFSET is a performance killer and how to implement O(1) cursor-based pagination for massive datasets.

Database

Mastering Database Replication Lag: Monitor, Diagnose, and Fix Sync Delays in PostgreSQL and MySQL

July 19, 2026

Database replication lag can silently corrupt your users' experience — orders appearing unpaid, inventory showing wrong counts. This guide covers how to monitor replication lag in PostgreSQL and MySQL, diagnose the root cause across network, disk, and query layers, and apply targeted fixes including parallel replication and WAL tuning.

Database

PlanetScale Serverless Database: Zero-Downtime Schema Migration with Branching

July 13, 2026

PlanetScale brings Git-style branching to MySQL, making schema migrations non-blocking and reviewable. This guide walks through the deploy request workflow, practical CLI commands, and real-world tips for zero-downtime database changes.

Database

MySQL Performance Schema: Diagnose Slow Queries with Internal Statistics Tables

July 13, 2026

MySQL Performance Schema exposes 80+ internal statistics tables that reveal slow queries, lock waits, and I/O bottlenecks — no external tools required. This guide covers the key tables, practical SQL queries, and a Python script to build a baseline monitoring system from six months of production experience.

Database

Beyond Schema Migrations: Mastering MySQL Document Store with X DevAPI

July 12, 2026

Transform MySQL into a powerful NoSQL database. Learn how to use the X DevAPI to manage JSON collections, perform schema-less CRUD, and join NoSQL data with SQL tables.

Database

ERD Design with dbdiagram.io: From Concept to Auto-Generated SQL

June 24, 2026

Jumping straight into SQL without a plan leads to messy schemas that are painful to refactor later. This guide walks through designing an ERD with dbdiagram.io using DBML syntax, then automatically exporting production-ready SQL — no boilerplate required.