Liquibase

1. Database Schema Versioning: Version control for database schema changes.
2. Declarative Configuration: Defines database changes using XML, YAML, JSON, or SQL.
3. Change Management: Supports various database change types.
4. Reversible Changes: Automatic rollback support for safe changes.

Before learning Liquibase, it's beneficial to have the following skills:

1. Database Basics: Understanding of fundamental database concepts such as tables, indexes, queries, and transactions.

2. SQL Knowledge: Proficiency in writing SQL queries for database manipulation and management.

3. Version Control Systems: Familiarity with version control concepts and tools like Git for managing code changes.

4. XML/JSON/YAML: Basic understanding of XML, JSON, or YAML formats for defining configuration and data structures.

By learning Liquibase, you gain the following skills:

1. Database Schema Versioning: Ability to version control database schema changes, similar to code versioning.

2. Change Management: Proficiency in managing database changes in a structured and systematic manner.

3. Automated Deployment: Skill in automating the deployment of database schema changes across different environments.

4. Rollback and Recovery: Capability to roll back database changes and recover to previous states if needed.