Maven rollbackSQL

rollbackSQL is a helper command that produces the raw SQL Liquibase would run when using the Maven rollback goal with the liquibase.rollbackCount, liquibase.rollbackTag, or liquibase.rollbackDate attributes:

  • liquibase.rollbackCountLiquibase uses the raw SQL to revert any changesets between the most recent and the value you specified
  • liquibase.rollbackTagLiquibase uses the raw SQL to revert all changes that were made to the database after the specified tag
  • liquibase.rollbackDateLiquibase uses the raw SQL to revert all changes made to your database from today's date to the date and time you specify

Uses

rollbackSQL is typically used to inspect the SQL Liquibase uses to revert changes associated with a tag, date, or depending on the number you specify when you run the rollback goal. It is best practice to use the rollbackSQL goal before running the rollback command to correct any issues that may arise before running the goal and avoid any potential risks.

Maven configuration

Liquibase Maven can be configured in multiple ways. One way is to define your Liquibase configuration properties in your pom.xml file. To configure your pom.xml file, refer to Configuring Liquibase Attributes in your Maven POM File. If pom.xml does not reference a Liquibase parameters file, include <changeLogFile>specify your changelog file here</changeLogFile> to pom.xml. You can also add <migrationSqlOutputFile>specify your output file here</migrationSqlOutputFile>, which defines the file to output the rollback SQL script.

Running the rollbackSQL Maven goal

Running the rollbackSQL goal requires a Maven project to be implemented. Also, before running the rollbackSQL goal, you can run the Maven history goal to see all your previously executed changes.

Running the rollbackSQL Maven goal with the rollbackCount attribute

  • To run the rollbackSQL goal with the liquibase.rollbackCount attribute, type the following in your command prompt:
mvn liquibase:rollbackSQL -Dliquibase.rollbackCount=2

Note: Enter the value you want to use in place of 2.

Running the rollbackSQL Maven goal with the rollbackTag attribute

  • To run the rollbackSQL goal with the liquibase.rollbackTag attribute, type the following in your command prompt:
mvn liquibase:rollbackSQL -Dliquibase.rollbackTag=version1

Note: Enter the name of the tag you want to use in place of version1. Alternatively, you can specify two properties in your pom.xml file under the <properties></properties> in the <project></project> level:

<liquibase.tag>v3.2.1</liquibase.tag>
<liquibase.rollbackTag>${liquibase.tag}</liquibase.rollbackTag>

Running the rollbackSQL Maven goal with the rollbackDate attribute

  • To run the rollbackSQL goal with the liquibase.rollbackDate attribute, type the following in your command prompt:
mvn liquibase:rollbackSQL -Dliquibase.rollbackDate=2020-11-30

Note: Enter the date you want to use in place of 2020-11-30. There are several ways to revert your changes with the liquibase.rollback-to-dateattribute. You can use YYYY-MM-DD HH:MM:SS or YYYY-MM-DD'T'HH:MM:SS formats to specify both date and time. Also, you can specify date or time only.

rollbackSQL required Maven configuration attributes

Attribute Definition
liquibase.rollbackCount

Defines the number of changesets to roll back. Default value is: 1.

liquibase.rollbackDate

Defines the date for which you want to roll back the database. The format of the date must match either an ISO date format or that of the DateFormat.getDateInstance() for the platform the plugin is being executed on.

liquibase.rollbackTag

Defines the tag for which you want to roll back the database.

rollbackSQL optional Maven configuration attributes

Attribute Definition
liquibase.changeLogDirectory

Specifies the path to the directory where Liquibase can find your changelog file.

liquibase.changeLogFile

The changelog file for Liquibase to use.

liquibase.changelogCatalogName

Specifies the catalog Liquibase will use to create your changelog tables.

liquibase.changelogSchemaName

Specifies the schema Liquibase will use to create your changelog tables.

liquibase.clearCheckSums

Boolean. Forces checksums to be cleared from the DATABASECHANGELOG table. Default value is: false.

liquibase.contexts

Specifies which contexts Liquibase will execute, which can be separated by a comma if multiple contexts are required. If a context is not specified, then all contexts will be executed.

liquibase.databaseChangeLogLockTableName

Specifies the table name to use for the DATABASECHANGELOGLOCK table.

liquibase.databaseChangeLogTableName

Specifies the table name to use for the DATABASECHANGELOG table.

liquibase.databaseClass

Specifies the database object class.

liquibase.defaultCatalogName

Specifies the default catalog name to use for the database connection.

liquibase.defaultSchemaName

Specifies the default schema name to use for the database connection.

liquibase.driver

Specifies the driver class name to use for the database connection.

driverPropertiesFile

Specifies the location of a JDBC connection properties file which contains properties the driver will use.

liquibase.emptyPassword

Deprecated. Boolean. Use an empty or null value for the password instead. Default value is: false.

expressionVariables

Specifies a map-based collection of changelog properties to apply.

expressionVars

Specifies a property-based collection of changelog properties to apply.

liquibase.includeArtifact

Boolean. Includes a Maven project artifact in the class loader, which obtains the Liquibase properties file and changelog files. Default value is true.

liquibase.includeTestOutputDirectory

Boolean. Includes the Maven test output directory in the class loader which obtains the Liquibase properties file and changelog files. Default value is true.

liquibase.labels

Specifies which labels Liquibase runs, and which can be separated by a comma if multiple labels are required or you need to designate a more complex expression. If no label is specified, then all labels are run.

liquibase.liquibaseProLicenseKey

Specifies your Liquibase Pro license key.

liquibase.migrationSqlOutputFile

Specifies the file to output the rollback/migration SQL script to. If it exists, it will be overwritten. Default value is: ${project.build.directory}/liquibase/migrate.sql.

liquibase.outputDefaultCatalog

Boolean. Specifies whether to ignore the catalog or database name. Default value is: false.

liquibase.outputDefaultSchema

Boolean. Specifies whether to ignore the schema name. Default value is: false.

liquibase.outputFileEncoding

Indicates that you want to set the character encoding of the output file during the updateSQL phase.

liquibase.password

Specifies the database password for the database connection.

liquibase.promptOnNonLocalDatabase

Deprecated. Boolean. Controls whether users are prompted before executing changesets to a non-local database. Default value is: true.

liquibase.propertyFile

Specifies the Liquibase properties file to use for configuration, like liquibase.properties.

liquibase.propertyFileWillOverride

Boolean. Indicates that you want the liquibase.properties file to override any settings provided in the Maven plugin configuration. By default, if a property is explicitly specified, it is not overridden if it also appears in the properties file. Default value is: false.

liquibase.propertyProviderClass

Specifies the property provider, which must be a java.util.Properties implementation.

liquibase.server

Specifies the server ID in the Maven settings.xml to use when authenticating.

liquibase.skip

Boolean. Specifies whether to skip running Liquibase. The use of this attribute is not recommended but can be used when needed. Default value is: false.

systemProperties

Specifies a list of system properties you want to pass to the database.

liquibase.url

Specifies the database URL you want to use to execute Liquibase.

liquibase.username

Specifies the database username for the database connection.

liquibase.verbose

Boolean. Controls the amount of output detail when you call the plugin. Default value is: false.