Zero Downtime Database Migrations: A Practical Guide for PostgreSQL

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Step-by-step guide to performing schema migrations in PostgreSQL without any downtime. Cover ALTER TABLE tricks, CREATE INDEX CONCURRENTLY, adding columns with defaults, renaming via views, and real-world migration scripts.

Published 1 May 2026

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Title: Zero Downtime Database Migrations: A Practical Guide for PostgreSQL

URL Source: https://dev.to/software_mvp-factory/zero-downtime-database-migrations-a-practical-guide-for-postgresql-11af

Published Time: 2026-05-01T07:35:49Z

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Posted on May 1 • Originally published at [mvpfactory.io](https://mvpfactory.io/blog/zero-downtime-database-migrations-a-practical-guide-for)

# Zero Downtime Database Migrations: A Practical Guide for PostgreSQL

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```
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title: "Zero Downtime Database Migrations: A Practical Guide for PostgreSQL"
published: true
description: "Step-by-st
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