dat vs Flyway: What are the differences?
What is dat? Real-time replication and versioning for data sets. Dat is an open source project that provides a streaming interface between every file format and data storage backend.
What is Flyway? Database Migrations Made Easy. Easy to setup, simple to master. Flyway lets you regain control of your database migrations with pleasure and plain sql. Solves only one problem and solves it well. Flyway migrates your database, so you don't have to worry about it anymore.
dat and Flyway can be primarily classified as "Database" tools.
dat and Flyway are both open source tools. dat with 7.54K GitHub stars and 460 forks on GitHub appears to be more popular than Flyway with 4.2K GitHub stars and 915 GitHub forks.
What is dat?
What is Flyway?
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Why do developers choose dat?
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Flyway vs Liquibase #Migration #Backwards-compatible
We were looking for a tool to help us integrating the migration scripts as part of our Deployment. At first sight both tools look very alike, are well integrated with Spring, have a fairly frequent development activity and short release cycles.
Liquibase puts a lot of emphasis on independence with the DB, allowing you to create the scripts on formats like JSON and YML, abstracting away from SQL, which it's also supported. Since we only work with one DB type across services we wouldn't take much advantage of this feature.
Flyway on the other hand has the advantage on being actively working on the integration with PostgreSQL 11, for it's upcoming version 6. Provides a more extensive set of properties that allow us to define what's allowed on what's not on each different environment.
Instead of looking for a tool that will allow us to rollback our DB changes automatically, we decided to implement backwards-compatible DB changes, for example adding a new column instead of renaming an existing one, postponing the deletion of the deprecated column until the release has been successfully installed.
it works with complex SQL script and it is very high customizable.