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Oracle

To add a database connection, click on the gear icon in the top right, and navigate to Admin settings > Databases > Add a database.

Settings

You can edit these settings at any time. Just remember to save your changes.

Display name

The display name for the database in the Metabase interface.

Host

Your database’s IP address, or its domain name (e.g., esc.mydatabase.com).

Port

The database port. E.g., 1521.

Oracle system ID (SID)

Usually something like ORCL or XE. Optional if using service name.

Oracle service name

Optional TNS alias.

Username

The database username for the account that you want to use to connect to your database. You can set up multiple connections to the same database using different user accounts to connect to the same database, each with different sets of privileges.

Password

The password for the username that you use to connect to the database.

Use a secure connection (SSL)

You can use both client and server authentication (known as mutual authentication).

Connecting to Oracle Cloud Autonomous Database

If you’ve configured your database to require mutual TLS (mTLS), you’ll need a wallet. To download your wallet:

  1. Go to your Oracle Autonomous Database.
  2. Go to the database’s details.
  3. Click on DB connection.
  4. Download the wallet.
  5. Create a password for the keyfile.
  6. Copy the keystore.jks file to wherever you store your Metabase configuration data.
  7. Use JAVA_OPTS to let Metabase know about the keystore’s location and password (for more info on keystores, see the next section).
  8. In Metabase, on the data connection page, enter your host, port, and service_name. You can find these values in the tsnnames.ora file.

Client authentication with a keystore

To configure the server (the Oracle server) to authenticate the identity of the client (Metabase), you need to configure a keystore file that includes the client’s private key.

You’ll import the client’s private key into the keystore (rather than a root CA into a truststore file). Add the following JVM options for Metabase:

-Djavax.net.ssl.keyStore=/path/to/keystore.jks
-Djavax.net.ssl.keyStoreType=JKS \
-Djavax.net.ssl.keyStorePassword=<keyStorePassword>

You can define these with the JAVA_OPTS environment variable, like so:

JAVA_OPTS: "-Djavax.net.ssl.keyStore=/scripts/keystore.jks -Djavax.net.ssl.keyStoreType=JKS -Djavax.net.ssl.keyStorePassword=<keyStorePassword>"

With this done, the Oracle server will authenticate Metabase using the private key when Metabase tries to connect over SSL.

Server authentication with a truststore

To configure the client (Metabase) to authenticate the identity of the server (the Oracle server), you may need to configure a truststore file that includes the server’s root CA, so that the JVM running Metabase trusts its certificate chain. Refer to the Oracle documentation on using keytool to manage key and truststore files, importing certificates, etc.

For more information on setting up a truststore for AWS RDS Oracle instances, see the instructions provided by Amazon.

If you need to connect to other databases using SSL, instead of creating a new truststore, you’ll probably want to add the RDS CA to your existing truststore file (likely called cacerts).

Supported Oracle database and Oracle driver versions

  • Driver version: the minimum Oracle driver version should be 19c, regardless of which Java version or Oracle database version you have.
  • Database version: the minimum database version should be version 19c, as Oracle no longer supports database versions prior to 19.

Downloading the Oracle JDBC Driver JAR

You can download a JDBC driver from Oracle’s JDBC driver downloads page.

We recommend using the ojdbc8.jar JAR.

Adding the Oracle JDBC Driver JAR to the Metabase plugins directory

In your Metabase directory (the directory where you keep and run your metabase.jar), create a directory called plugins (if it doesn’t already exist.

Move the JAR you just downloaded (ojdbc8.jar) into the plugins directory, and restart Metabase. Metabase will automatically make the Oracle driver available when it starts back up.

When running from a JAR

By default, the plugins directory is called plugins, and lives in the same directory as the Metabase JAR.

For example, if you’re running Metabase from a directory called /app/, you should move the Oracle JDBC driver JAR to /app/plugins/:

# example directory structure for running Metabase with Oracle support
/app/metabase.jar
/app/plugins/ojdbc8.jar

When running from Docker

The process for adding plugins when running via Docker is similar, but you’ll need to mount the plugins directory. Refer to instructions here for more details.

Further reading

Read docs for other versions of Metabase.