This article will cover the basics of the Flyway generate command and how it can auto-generate several types of Flyway migration scripts. This includes versioned migrations that, after testing, can be used to deploy changes, and baseline migration and undo scripts that are useful for a range of development tasks. Read more
This article explains how to compare databases and generate schema models using Flyway Enterprise CLI with PowerShell. It allows developers and DBAs to identify schema differences between environments and create schema models that capture the current state of a database, making it easier to track and review changes over time. Read more
In order to focus on their primary task of developing databases, the development team need to automate as many as possible of the routine tasks that are essential for database delivery, such as testing, scripting, version control, documentation, code review, reporting and so on. This article gives some advice on how to do it, faced with the added challenge of needing to use several different relational databases. Read more
This article uses Flyway and a PowerShell framework to generate a simple JSON model for each new version of an Oracle database, and then compares models to get a high-level 'narrative' of which tables, views or procedures were changed by each Flyway migration. Read more
Table manifests, and object manifests, which are just ordered lists, are a very useful output from and development database build. This article show how to generate a table manifest in SQL, and once you have it, you'll start to find several uses for it, besides the build process. Read more
For a development team, SQL Backup provides a simple way to restore development or test databases, if required, while minimizing the tedium of the task of taking, managing, and restoring the backups. We can generate the required backup commands in the GUI and then use them to construct a SQL script that backs up all the required databases. We can even use the backup commands in a beforeMigrate SQL callback, in Flyway, to make sure the current version is safely backed up before we run migration. Read more
A cross-RDBMS way of exporting, deleting and inserting data, for database development work. It is a PowerShell automation technique for Flyway that uses JSON files for data storage. It should help a team maintain datasets between database versions, as well as to switch between the datasets required to support different types of testing. Read more
Dependency information will allow you to avoid errors during a database build or tear-down, by ensuring you create or remove objects in the right order. It will also help you to avoid future 'invalid object' errors, because it will allow you to check that no database alterations have introduced broken references, during Flyway migrations. Read more
Over time, Flyway projects can accumulate a lot of migration scripts, with many database objects being created, altered, and dropped across many files. Tonie Huizer explains why you might want to create a new baseline migration file to create the latest version of a Flyway-managed database in a single leap, and how to persuade Flyway Desktop to do it. Read more
Flyway, especially Flyway Teams edition, can be used in several different ways to accommodate a database development that was originally based on builds rather than migrations. This article explores four different ways to use Flyway to build a particular version of a database, from the ground up, using a single migration script. It should help teams select the best way to incorporate Flyway into an existing database build system, during development, while benefitting from use of Flyway's versioned migration system for deployments and releases. Read more