Using Liquibase with MySQL

MySQL is a fast, multi-user SQL database service. MySQL Server is intended for mission-critical, heavy-load production systems as well as for embedding into mass-deployed software. For more information, see the MySQL documentation page.

Verified versions

MySQL Server, AWS Aurora – MySQL, AWS RDS – MySQL, Azure Database for MySQL

  • 8.0
  • 5.7

Google Cloud SQL – MySQL

  • 8.0

Verification level

Note: A database's verification level indicates how well it works with different features in Liquibase and across different products, such as Liquibase Open Source and Liquibase Pro. For more information, see Database Verification Levels.

Advanced: Database has been tested and validated to deliver a minimum set of advanced capabilities around database inspection, support for long-running operations, as well as the Foundational level's basic functionality of change management and change tracking aligned with the database. The advanced database inspection capabilities include the ability to generate changelogs in at least one format and the support of at least two additional state-based commands (snapshots, diffs, etc). The Liquibase customer support team provides how-to/usage support around verified capabilities for commercial customers.

Prerequisites

  1. Introduction to Liquibase – Dive into Liquibase concepts.
  2. Install Liquibase – Download Liquibase on your machine.
  3. Get Started with Liquibase – Learn how to use Liquibase with an example database.
  4. Design Your Liquibase Project – Create a new Liquibase project folder and organize your changelogs
  5. How to Apply Your Liquibase Pro License Key – If you use Liquibase Pro, activate your license.

Install drivers

To use Liquibase and MySQL, you need the JDBC driver JAR file (Maven download).

Place your JAR file(s) in the liquibase/lib directory. If you use Maven, you must include the driver JAR as a dependency in your pom.xml file.

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.30</version>
</dependency>

Test your connection

  1. Ensure your MySQL is configured:
  2. Specify the database URL in the liquibase.properties file (defaults file), along with other properties you want to set a default value for. Liquibase does not parse the URL. You can either specify the full database connection string or specify the URL using your database's standard JDBC format:
  1. Create a text file called changelog (.xml) in your project directory and add a changeset.

    If you already created a changelog using the init project command, you can use that instead of creating a new file. When adding onto an existing changelog, be sure to only add the changeset and to not duplicate the changelog header.

  2. Navigate to your project folder in the CLI and run the Liquibase status command to see whether the connection is successful:
  3. liquibase status --username=test --password=test --changelog-file=<changelog.xml>

    Note: You can specify arguments in the CLI or keep them in the Liquibase properties file.

    If your connection is successful, you'll see a message like this:

    4 changesets have not been applied to <your_jdbc_url>
    Liquibase command 'status' was executed successfully.
  4. Inspect the deployment SQL with the update-sql command:
  5. liquibase update-sql --changelog-file=<changelog.xml>
  6. Then make changes to your database with the update command:
  7. liquibase update --changelog-file=<changelog.xml>

    If your update is successful, Liquibase runs each changeset and displays a summary message ending with:

    Liquibase: Update has been successful.
    Liquibase command 'update' was executed successfully.
  8. From a database UI tool, ensure that your database contains the test_table object you added along with the DATABASECHANGELOG table and DATABASECHANGELOGLOCK table.

Now you're ready to start making deployments with Liquibase!

MySQL Server

  • Ensure your MySQL is configured. You can check the status by running:
    • The sudo service mysql status command for Linux.
    • The net start MySQL or services.msc command for Windows. The services.msc command will open a new window and display the list of services available on your system. Find MySQL and check the status column. You can also run mysql -u root -p to see if MySQL works.
  • Specify the database URL in your liquibase.properties file:
  • url: jdbc:mysql://<servername>:<port>/<dbname>

    Tip: To apply a Liquibase Pro key to your project, add the following property to the Liquibase properties file: licenseKey: <paste code here>

MySQL on AWS RDS

  • Check the connection by using the mysql command-line client and running the following:

  • mysql -h <endpoint> -P 3306 -u <mymainuser> -p

    Note: The alternative way is to connect with the SSL certificate.

    You can find the connection information in the AWS Management Console:

    1. Open the Amazon RDS console
    2. Select Databases and choose the needed database
    3. Select Connectivity & security. You will see all information under Endpoint & Port.

    To find the connection information using the AWS CLI and RDS API, refer to the Connecting to a DB instance running the MySQL database engine documentation.

  • Specify the database URL in the liquibase.properties file as follows:

  • url: jdbc:mysql://<endpoint>:<port>/<dbname>

    Example: url:jdbc:mysql://mydb.123456789012.us-east-1.rds.amazonaws.com:3306/myTestDB?autoReconnect=true&useSSL=false

Other

You can also use Liquibase on MySQL with Amazon Aurora, Azure Database, and Google Cloud SQL.

Related links