rollback-count-sql

The rollback-count-sql command is a helper command that allows you to inspect the SQL Liquibase will run while using the rollback-count command.

Uses

The rollback-count-sql command is used when you want to inspect the raw SQL before running the rollback-count command, so you can correct any issues that may arise before running the command. Liquibase uses the raw SQL to revert any changesets between the most recent and the value you specified.

Running the rollback-count-sql command

Before running the rollback-count-sql command, you can run the history command to see all your previously executed changes.

Note: rollback-countSQL works from the bottom of the list towards the top. Also, unlike the rollback-count command, there is no impact of this command. See the rollback-count topic for more information.

To run the rollback-count-sql command, specify the driver, classpath, and URL in the Liquibase properties file. For more information, see Specifying Properties in a Connection Profile. You can also specify these properties in your command line.

Then run the rollback-count-sql command:

liquibase --changelog-file=mychangelog.postgresql.sql rollback-count-sql 1

Note: Enter the name of the changelog and value you want to use in place of mychangelog.postgresql.sql and 1.

rollback-count-sql global attributes

Attribute	Definition	Requirement
--changelog-file *	Specifies the root changelog	Required
--url	Specifies the JDBC database connection URL	Required
--username	Specifies the database username	Required
--password	Specifies the database password	Required
--output-file **	Specifies the file path to where the Rollback SQL will be written	Optional

* Liquibase checks the changelog and any nested changelogs for the definitions of the changesets to roll back.

** If not specified, rollback-count SQL output goes to STDOUT.

Note: The username and password attributes are not required for connections and systems which use alternate means of authentication.

rollback-count-sql command attributes

Attribute	Definition	Requirement
--value	The integer indicating the number of changes you want to rollback	Required