Zero-Downtime Database Schema Migrations: A Practical Guide
How to change a production database schema without downtime using the expand/contract pattern, safe sequencing, and automated schema diffing.
Database Guides
MySQL to PostgreSQL Migration: A Schema-Level Guide
A schema-level guide to migrating from MySQL to PostgreSQL — type mapping, auto-increment vs sequences, and generating correct target DDL.
SQLite to PostgreSQL Migration: A Step-by-Step Schema Guide
A practical guide to migrating a SQLite schema to PostgreSQL: type mapping, constraint differences, and how to compare, dry-run, and apply the migration safely.
Tutorials
How to Compare Two Database Schemas and Generate Migration SQL
A step-by-step guide to comparing two database schemas, reading the diff, and generating safe migration SQL across MySQL, PostgreSQL, SQL Server, Oracle and more.
Database Guides
Understanding Database Schema Drift (and How to Detect It)
What database schema drift is, why staging and production fall out of sync, and how to detect and fix drift with an automated schema diff.
Database Guides
Cross-Dialect Schema Migration: MySQL, PostgreSQL, SQL Server and More
How to migrate a database schema between SQL dialects — what translates cleanly, what needs manual review, and how to generate target-dialect DDL.
Product
FoxSchema: An Open-Source Database Schema Diff and Migration Tool
FoxSchema is a free, open-source database schema diff and migration tool for 10 SQL dialects, available as a desktop app, web app, and CLI.
