Liquibase Online Help
What is Liquibase?
Liquibase is an open-source database schema change management solution which enables you to manage revisions of your database changes easily. Liquibase makes it easy for anyone involved in the application release process to:
- Eliminate errors and delays when releasing databases.
- Deploys and Rollback changes for specific versions without needing to know what has already been deployed.
- Deploy database and application changes together so they always stay in sync.
Frequently Asked Questions
Does Liquibase work with branches?
Yes. Since each change is independent, database changes that had been made in a different branch, then merged in will be run the next time Liquibase is run. You may run into a problem with the order that the statements are ran, but any issues you have can be easily solved by re-ordering the changelog files.
What license is Liquibase released under?
Liquibase Community is released under the Apache License, version 2.0. Liquibase Pro is released under a commercial license. The main Liquibase jar file also contains commercially licensed Liquibase Pro code that is only active when a license key is provided.
What if multiple processes or application servers attempt to migrate the database at the same time?
Liquibase uses a distributed locking system to only allow one process to update the database at a time. The other processes will simply wait until the lock has been released.
