Liquibase
supports the rollback
of the database by tagging the current state
, release
, or version
with the help of tagDatabase
Change Type. tagDatabase
Change Type inserts a new record in DATABASECHANGELOG
table with the tag name specified in Change Set.
Each tagDatabase must have a rollback tag to revert the ChangeSet
<?xml version="1.1" encoding="UTF-8" standalone="no"?>
<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext" xmlns:pro="http://www.liquibase.org/xml/ns/pro" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd http://www.liquibase.org/xml/ns/pro http://www.liquibase.org/xml/ns/pro/liquibase-pro-latest.xsd http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-latest.xsd">
<changeSet author="wesome" id="1692446190573-1">
<createTable catalogName="appledb" tableName="apple">
<column autoIncrement="true" name="apple_id" type="BIGINT">
<constraints nullable="false" primaryKey="true" />
</column>
<column name="apple_name" type="VARCHAR(255)" />
<column defaultValueComputed="CURRENT_TIMESTAMP" name="current_date_time" type="datetime" />
</createTable>
<rollback>
<dropTable tableName="apple" />
</rollback>
</changeSet>
<changeSet author="wesome" id="1692701200879-2">
<tagDatabase tag="version_1.1" />
</changeSet>
<changeSet author="wesome" id="1692701200879-3">
<insert catalogName="appledb" tableName="apple">
<column name="apple_name" value="Fuji" />
<column name="current_date_time" valueDate="now()" />
</insert>
<rollback>
<delete tableName="apple">
<where>
apple_name = 'Fuji'
</where>
</delete>
</rollback>
</changeSet>
<changeSet author="wesome" id="1692701200879-4">
<tagDatabase tag="version_1.2" />
</changeSet>
<changeSet author="wesome" id="1692701200879-5">
<insert catalogName="appledb" tableName="apple">
<column name="apple_name" value="Gala" />
<column name="current_date_time" valueDate="now()" />
</insert>
<rollback>
<delete tableName="apple">
<where>
apple_name = 'Gala'
</where>
</delete>
</rollback>
</changeSet>
</databaseChangeLog>
liquibase.properties (update changeLog File file format with SQL, XML, YAML, JSON as per changelog.mysql.)
changeLogFile=changelog.mysql.xml
liquibase.command.url:jdbc:mysql://localhost:3306/appleDb?createDatabaseIfNotExist=true&autoReconnect=true&useSSL=false&allowPublicKeyRetrieval=true
liquibase.command.username : root
liquibase.command.password : rootroot
Run command liquibase update
The table is created with all the records, the same can be verified by running the query
SELECT * FROM appleDb.apple;
The tagDatabase
inserted a new record in DATABASECHANGELOG
table for each tag.
SELECT * FROM appleDb.databasechangelog;
To revert to a specific tag
, run the command liquibase rollback --tag=version_1.3
it will revert everything after tag=version_1.3
in apple
and DATABASECHANGELOG
table