Learning DevOps: Continuously Deliver Better Software

The changelog file

The following is an example of what a Liquibase changelog file can look like.

It defines two changesets, or migrations, with the numerical identifiers 1 and 2:

• Changeset 1 creates a table called customer, with a column called name
• Changeset 2 adds a column called address to the table called customer

  <?xml version="1.0" encoding="utf-8"?> <databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.0.xsd"> <changeSet id="1" author="jave"> <createTable tableName="customer"> <column name="id" type="int"/> <column name="name" type="varchar(50)"/> </createTable> ...