Product articles
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 moreThe 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 moreHow 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 moreThe 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 moreHow 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 moreUsing 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 moreHow to Write and Debug a PowerShell Callback for Flyway Migrations
We can use callbacks in Flyway to plug into any part of the Flyway lifecycle and run various database tasks before or after a particular event takes place. In this article I've tried to assemble a 'best practice' guide for writing callbacks to ensure that the scripts always behave predictably, and so that when things go awry the cause is easy to spot, without hours of painful scrolling through Flyway output. Read moreManaging Test Datasets for a Database: What’s Required?
The management of datasets is intrinsic to effective team-based database development. This article reviews what's required of test datasets in database development and then proposes a system of managing them in a migration-based approach that adopts a common standard for their storage, using JSON. Read moreRedgate Hub
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