Flyway’s Clean Command Explained Simply

The Clean command resets a database to its initial state, before any Flyway migrations were applied. In other words, it empties the database. This can be useful for any development task that requires that you recreate the database structure, or for tearing down a test harness. It also allows you to try out experiments and alternative strategies within an isolated feature branch, and then reverse out of them. Read more

Flyway’s Baseline Migrations Explained Simply

A Flyway Baseline migration script is a single script with a B prefix that will migrate an empty database, or one that Flyway has 'cleaned', to the version specified in the file name. It is useful both for consolidating a long, often complex chain of historical migrations, and for capturing the current production version of a database, as the starting point for developing subsequent migrations. Read more

Flyway’s Baseline Command Explained Simply

The Baseline command is intended to make it easy to turn any preexisting production database into a Flyway database so that, subsequently, versioned migrations can then be applied to it, bringing greater stability and predictability to database deployments. Read more

PostgreSQL Spill to Disk Recommendations in Redgate Monitor

When processing a query in PostgreSQL that requires more memory than it's configured to allocate, data will be spilled to disk to complete the query operations. This can introduce performance bottlenecks. Redgate Monitor now includes recommendations for PostgreSQL that warn you when a spill occurs and will help you understand why and what you can do to avoid it. Read more

The Flyway Info Command Explained Simply

If you need the current version of your Flyway database, and a history of the changes that were applied to build that version, then the info command is the place to go. It allows you to review applied and pending migrations, track migration status, and troubleshoot any issues that may have occurred during the migration process. Read more

How to Fix or Avoid ‘Ignored’ Migrations in Flyway

Flyway has several ways of allowing you to make mistakes, or even experiment wildly, and then tidy up afterwards easily. In this article, I'll describe a few ways to persuade Flyway that you know what you're doing and that it needn't ignore a migration file. Read more

The Flyway Migrate Command Explained Simply

The 'Migrate' command automates the process of applying the database schema changes that are defined in migration scripts, while Flyway tracks the version of every copy of the database. This makes it much easier to maintain consistency across different database environments, and so facilitates continuous integration, continuous deployment, and database version control practices. Read more

How to Manage Static Data in Existing Flyway Projects

How do we capture static data in our Flyway projects, and then track and deploy any changes to it, while also ensuring that our automated deployment process doesn't try to deploy static data to databases where it already exists, such as the production database? For new Flyway projects, it's quite straightforward, but for existing projects there may be complications, depending on your database development and deployment strategy. Read more

Redgate Test Data Manager: A Guide for the DevOps Manager

Redgate Test Data Manager will prepare, manage and deliver the test data required to support the full range of development and test activities for any database project. It allows for extensive and automated testing that leads to reliable, online deployment of database changes. Read more

Using Flyway as a Multi-Database Migration System

Flyway can scale easily to enterprise-scale database systems, even if they involve a mix of relational database systems, are cloud-based, containerized or involve complex authentication. This article demonstrates how we can use Flyway Teams to do a single-batch, multi-database migration, comprising SQL Server, Oracle Cloud, PostgreSQL, MySQL and SQLite databases. Read more

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