Versioning Your Business App's Database Schema — Migration Practices to Prevent 'Every Customer Has a Different DB' (archived 2026-07-27)

A practical guide to versioning the database schema of a business app whose databases are scattered across customer sites. Covers PRAGMA user_version and a C# implementation of forward migrations, a decision table for EF Core Migrations, DbUp, and hand-rolled implementations, and two-stage expand-contract releases. Archived version of https://comcomponent.com/en/blog/db-schema-migration-versioning-business-apps/, as published on 2026-07-27. The live article is maintained and may change after this date. First published 2026-07-17.