tag-exists

The tag-exists command checks whether the tag you specify already exists in your database.

Uses

The tag-exists command is typically used to identify whether the specified tag exists in the database or specifically in the DATABASECHANGELOG table. Running the tag-exists command checks for the tag and, based on whether it exists or not, provides the appropriate output.

Syntax

To run the tag-exists command, specify the driver, classpath, and URL in the Liquibase properties file. For more information, see Create and Configure a liquibase.properties File. You can also specify these properties in your command line.

Then run the tag-exists command:

liquibase tag-exists --tag=myTag

Note: The --tag=myTag syntax was added in Liquibase 4.4. If you use an older version, specify your tag as a positional argument: <command> myTag.

Command parameters

Attribute Definition Requirement

--tag=<string>

The tag identifying which tagged changesets in the changelog to evaluate. Specify as --tag=myTag. Positional format <command> <tag> deprecated in 4.4+.

Required

--url=<string>

The JDBC database connection URL. See Using JDBC URL in Liquibase.

Required

--default-catalog-name=<string>

Name of the default catalog to use for the database connection

Optional

--default-schema-name=<string>

Name of the default schema to use for the database connection. If defaultSchemaName is set, then objects do not have to be fully qualified. This means you can refer to just mytable instead of myschema.mytable.

Tip: In Liquibase v4.23.0+, camelCase for defaultSchemaName works successfully. If you are on an earlier version, camelCase may not work as expected.

Note: The syntax liquibase.command.defaultSchemaName is valid for v4.19.0+. For prior versions, use defaultSchemaName.

Optional

--driver=<string>

The JDBC driver class

Optional

--driver-properties-file=<string>

The JDBC driver properties file

Optional

--password=<string>

Password to connect to the target database.

Tip: It is a best practice to store sensitive data in a Secrets Management tool with Liquibase Pro.

Optional

--username=<string>

Username to connect to the target database.

Tip: It is a best practice to store sensitive data in a Secrets Management tool with Liquibase Pro.

Optional
Attribute Definition Requirement

cmdArgs: { tag: "<string>" }

The tag identifying which tagged changesets in the changelog to evaluate. Specify as --tag=myTag. Positional format <command> <tag> deprecated in 4.4+.

Required

cmdArgs: { url: "<string>" }

The JDBC database connection URL. See Using JDBC URL in Liquibase.

Required

cmdArgs: { default-catalog-name: "<string>" }

Name of the default catalog to use for the database connection

Optional

cmdArgs: { default-schema-name: "<string>" }

Name of the default schema to use for the database connection. If defaultSchemaName is set, then objects do not have to be fully qualified. This means you can refer to just mytable instead of myschema.mytable.

Tip: In Liquibase v4.23.0+, camelCase for defaultSchemaName works successfully. If you are on an earlier version, camelCase may not work as expected.

Note: The syntax liquibase.command.defaultSchemaName is valid for v4.19.0+. For prior versions, use defaultSchemaName.

Optional

cmdArgs: { driver: "<string>" }

The JDBC driver class

Optional

cmdArgs: { driver-properties-file: "<string>" }

The JDBC driver properties file

Optional

cmdArgs: { password: "<string>" }

Password to connect to the target database.

Tip: It is a best practice to store sensitive data in a Secrets Management tool with Liquibase Pro.

Optional

cmdArgs: { username: "<string>" }

Username to connect to the target database.

Tip: It is a best practice to store sensitive data in a Secrets Management tool with Liquibase Pro.

Optional
Attribute Definition Requirement

liquibase.command.tag: <string>

liquibase.command.tagExists.tag: <string>

The tag identifying which tagged changesets in the changelog to evaluate. Specify as --tag=myTag. Positional format <command> <tag> deprecated in 4.4+.

Required

liquibase.command.url: <string>

liquibase.command.tagExists.url: <string>

The JDBC database connection URL. See Using JDBC URL in Liquibase.

Required

liquibase.command.defaultCatalogName: <string>

liquibase.command.tagExists.defaultCatalogName: <string>

Name of the default catalog to use for the database connection

Optional

liquibase.command.defaultSchemaName: <string>

liquibase.command.tagExists.defaultSchemaName: <string>

Name of the default schema to use for the database connection. If defaultSchemaName is set, then objects do not have to be fully qualified. This means you can refer to just mytable instead of myschema.mytable.

Tip: In Liquibase v4.23.0+, camelCase for defaultSchemaName works successfully. If you are on an earlier version, camelCase may not work as expected.

Note: The syntax liquibase.command.defaultSchemaName is valid for v4.19.0+. For prior versions, use defaultSchemaName.

Optional

liquibase.command.driver: <string>

liquibase.command.tagExists.driver: <string>

The JDBC driver class

Optional

liquibase.command.driverPropertiesFile: <string>

liquibase.command.tagExists.driverPropertiesFile: <string>

The JDBC driver properties file

Optional

liquibase.command.password: <string>

liquibase.command.tagExists.password: <string>

Password to connect to the target database.

Tip: It is a best practice to store sensitive data in a Secrets Management tool with Liquibase Pro.

Optional

liquibase.command.username: <string>

liquibase.command.tagExists.username: <string>

Username to connect to the target database.

Tip: It is a best practice to store sensitive data in a Secrets Management tool with Liquibase Pro.

Optional
Attribute Definition Requirement

JAVA_OPTS=-Dliquibase.command.tag=<string>

JAVA_OPTS=-Dliquibase.command.tagExists.tag=<string>

The tag identifying which tagged changesets in the changelog to evaluate. Specify as --tag=myTag. Positional format <command> <tag> deprecated in 4.4+.

Required

JAVA_OPTS=-Dliquibase.command.url=<string>

JAVA_OPTS=-Dliquibase.command.tagExists.url=<string>

The JDBC database connection URL. See Using JDBC URL in Liquibase.

Required

JAVA_OPTS=-Dliquibase.command.defaultCatalogName=<string>

JAVA_OPTS=-Dliquibase.command.tagExists.defaultCatalogName=<string>

Name of the default catalog to use for the database connection

Optional

JAVA_OPTS=-Dliquibase.command.defaultSchemaName=<string>

JAVA_OPTS=-Dliquibase.command.tagExists.defaultSchemaName=<string>

Name of the default schema to use for the database connection. If defaultSchemaName is set, then objects do not have to be fully qualified. This means you can refer to just mytable instead of myschema.mytable.

Tip: In Liquibase v4.23.0+, camelCase for defaultSchemaName works successfully. If you are on an earlier version, camelCase may not work as expected.

Note: The syntax liquibase.command.defaultSchemaName is valid for v4.19.0+. For prior versions, use defaultSchemaName.

Optional

JAVA_OPTS=-Dliquibase.command.driver=<string>

JAVA_OPTS=-Dliquibase.command.tagExists.driver=<string>

The JDBC driver class

Optional

JAVA_OPTS=-Dliquibase.command.driverPropertiesFile=<string>

JAVA_OPTS=-Dliquibase.command.tagExists.driverPropertiesFile=<string>

The JDBC driver properties file

Optional

JAVA_OPTS=-Dliquibase.command.password=<string>

JAVA_OPTS=-Dliquibase.command.tagExists.password=<string>

Password to connect to the target database.

Tip: It is a best practice to store sensitive data in a Secrets Management tool with Liquibase Pro.

Optional

JAVA_OPTS=-Dliquibase.command.username=<string>

JAVA_OPTS=-Dliquibase.command.tagExists.username=<string>

Username to connect to the target database.

Tip: It is a best practice to store sensitive data in a Secrets Management tool with Liquibase Pro.

Optional
Attribute Definition Requirement

LIQUIBASE_COMMAND_TAG=<string>

LIQUIBASE_COMMAND_TAG_EXISTS_TAG=<string>

The tag identifying which tagged changesets in the changelog to evaluate. Specify as --tag=myTag. Positional format <command> <tag> deprecated in 4.4+.

Required

LIQUIBASE_COMMAND_URL=<string>

LIQUIBASE_COMMAND_TAG_EXISTS_URL=<string>

The JDBC database connection URL. See Using JDBC URL in Liquibase.

Required

LIQUIBASE_COMMAND_DEFAULT_CATALOG_NAME=<string>

LIQUIBASE_COMMAND_TAG_EXISTS_DEFAULT_CATALOG_NAME=<string>

Name of the default catalog to use for the database connection

Optional

LIQUIBASE_COMMAND_DEFAULT_SCHEMA_NAME=<string>

LIQUIBASE_COMMAND_TAG_EXISTS_DEFAULT_SCHEMA_NAME=<string>

Name of the default schema to use for the database connection. If defaultSchemaName is set, then objects do not have to be fully qualified. This means you can refer to just mytable instead of myschema.mytable.

Tip: In Liquibase v4.23.0+, camelCase for defaultSchemaName works successfully. If you are on an earlier version, camelCase may not work as expected.

Note: The syntax liquibase.command.defaultSchemaName is valid for v4.19.0+. For prior versions, use defaultSchemaName.

Optional

LIQUIBASE_COMMAND_DRIVER=<string>

LIQUIBASE_COMMAND_TAG_EXISTS_DRIVER=<string>

The JDBC driver class

Optional

LIQUIBASE_COMMAND_DRIVER_PROPERTIES_FILE=<string>

LIQUIBASE_COMMAND_TAG_EXISTS_DRIVER_PROPERTIES_FILE=<string>

The JDBC driver properties file

Optional

LIQUIBASE_COMMAND_PASSWORD=<string>

LIQUIBASE_COMMAND_TAG_EXISTS_PASSWORD=<string>

Password to connect to the target database.

Tip: It is a best practice to store sensitive data in a Secrets Management tool with Liquibase Pro.

Optional

LIQUIBASE_COMMAND_USERNAME=<string>

LIQUIBASE_COMMAND_TAG_EXISTS_USERNAME=<string>

Username to connect to the target database.

Tip: It is a best practice to store sensitive data in a Secrets Management tool with Liquibase Pro.

Optional

Note: The username and password attributes are not required for connections and systems which use alternate means of authentication. Also, you can specify database credentials as part of the url attribute.