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>
    </changeSet>
  
    <changeSet id="2" author="jave">
      <addColumn  tableName="customer">
          <column name="address" type="varchar(255)"/>
      </addColumn>
    </changeSet>
  
  </databaseChangeLog>