...
The file dbchangelog.mariadb.sql will contain the DDL for your database in SQL format
Add dbchangelog.yaml
| Code Block | ||||
|---|---|---|---|---|
| ||||
databaseChangeLog:
- changeSet:
id: 1
author: admin
changes:
- createTable:
tableName: person
columns:
- column:
name: id
type: int
autoIncrement: true
constraints:
primaryKey: true
nullable: false
- column:
name: firstname
type: varchar(50)
- column:
name: lastname
type: varchar(50)
constraints:
nullable: false
- column:
name: state
type: char(2)
- changeSet:
id: 2
author: admin
changes:
- addColumn:
tableName: person
columns:
- column:
name: username
type: varchar(8)
- changeSet:
id: 3
author: admin
changes:
- addLookupTable:
existingTableName: person
existingColumnName: state
newTableName: state
newColumnName: id
newColumnDataType: char(2) |
Add a new plugin dependency to pom.xml
<dependency>
<groupId>org.yaml</groupId>
<artifactId>snakeyaml</artifactId>
<version>1.28</version>
</dependency>
mvn package
mvn liquibase:update
3 new entries in the databasechangelog table
| Code Block | ||||
|---|---|---|---|---|
| ||||
select * from databasechangelog;
+----+--------+------------------+---------------------+---------------+----------+------------------------------------+---------------------------------------------------------------------------------------------------------+----------+------+-----------+----------+--------+---------------+
| ID | AUTHOR | FILENAME | DATEEXECUTED | ORDEREXECUTED | EXECTYPE | MD5SUM | DESCRIPTION | COMMENTS | TAG | LIQUIBASE | CONTEXTS | LABELS | DEPLOYMENT_ID |
+----+--------+------------------+---------------------+---------------+----------+------------------------------------+---------------------------------------------------------------------------------------------------------+----------+------+-----------+----------+--------+---------------+
| 1 | admin | dbchangelog.yaml | 2021-05-20 16:07:58 | 1 | EXECUTED | 8:f022085620a9dd87ae9ca1f93da51fd0 | createTable tableName=person | | NULL | 3.8.0 | NULL | NULL | 1523278917 |
| 2 | admin | dbchangelog.yaml | 2021-05-20 16:07:58 | 2 | EXECUTED | 8:e3f0f50eb245f66c68ec504db93b6717 | addColumn tableName=person | | NULL | 3.8.0 | NULL | NULL | 1523278917 |
| 3 | admin | dbchangelog.yaml | 2021-05-20 16:07:59 | 3 | EXECUTED | 8:12a8bb9e438047d9332c8aec4f90a76e | addLookupTable existingColumnName=state, existingTableName=person, newColumnName=id, newTableName=state | | NULL | 3.8.0 | NULL | NULL | 1523278917 |
+----+--------+------------------+---------------------+---------------+----------+------------------------------------+---------------------------------------------------------------------------------------------------------+----------+------+-----------+----------+--------+---------------+ |
mvn liquibase:rollback -Dliquibase.rollbackCount=1
[INFO] Rolling Back Changeset:dbchangelog.yaml::3::admin
[INFO] ALTER TABLE person DROP FOREIGN KEY FK_PERSON_STATE
[INFO] DROP TABLE state
[INFO] DELETE FROM DATABASECHANGELOG WHERE ID = '3' AND AUTHOR = 'admin' AND FILENAME = 'dbchangelog.yaml'
mvn liquibase:rollback -Dliquibase.rollbackCount=2
[INFO] Rolling Back Changeset:dbchangelog.yaml::2::admin
[INFO] ALTER TABLE person DROP COLUMN username
[INFO] DELETE FROM DATABASECHANGELOG WHERE ID = '2' AND AUTHOR = 'admin' AND FILENAME = 'dbchangelog.yaml'
[INFO] Rolling Back Changeset:dbchangelog.yaml::1::admin
[INFO] DROP TABLE person
[INFO] DELETE FROM DATABASECHANGELOG WHERE ID = '1' AND AUTHOR = 'admin' AND FILENAME = 'dbchangelog.yaml'