Liquibase
suggests that all ChangeSets
must have rollback
so that if required Liquibase
can rollback
to the desired state, The updateTestingRollback
provided by Liquibase
updates the database
with ChangeSets
and tests the rollback
as well.
updateTestingRollback
is a multi-step
process, that first deploys
the ChangeSet
, then executes
the rollback
command in reverse order, and again deploys
the ChangeSet
against the database
.
If any of the ChangeSet roll back fails, Liquibase will deploy all the ChangeSets before the failed encounter
<?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">
<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="1692701200879-3">
<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
execute the command
liquibase updateTestingRollback
Liquibase
will execute the ChangeSet
sequentially, then rollback
, and execute
all again.