validate command

The validate command checks and identifies any possible errors in a changelog that can cause the update command to fail.

Uses

The validate command is mainly used when you want to detect if there are any issues with a changelog before running the update command.

With the help of the validate command, you can avoid a partial update, where only some changesets are applied due to an error in your changelog file.

Use the validate command to ensure that:

  • The XML/YAML/JSON/formatted SQL is structured correctly
  • Referenced files can be found
  • There are no duplicated id/author/file combinations
  • There aren't any checksum errors
  • Any required or not allowed attributes are correct for your database

Running the validate command

To run the validate command, type the following into your command line:

liquibase --changeLogFile=oracle_runWith_changelog.xml validate

Note: Enter the name of the changelog you want to use in place of oracle_runWith_changelog.xml.

validate global attributes

Attribute Definition Requirement
--changeLogFile * The root changelog Required
--url The JDBC database connection URL Required
--username The database username Required
--password The database password Required

* Liquibase will check nested changelogs for definitions of the changesets to validate.