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Oracle Database credentials#

You can use these credentials to authenticate the following nodes:

Agent node users

The Agent node doesn't support SSH tunnels.

Prerequisites#

Create a user account on a OracleDB server database.

Supported authentication methods#

  • Database connection

Refer to OracleDB's documentation for more information about the service.

Using database connection#

To configure this credential, you'll need:

  • A User name.
  • A Password for that user.
  • Connection String: The Oracle database instance to connect to. The string can be an Easy Connect string, or a Net Service Name from a tnsnames.ora file, or the name of a local Oracle database instance.
  • Use SSL: If your Connection String is using SSL, turn this on and configure additional details for the SSL Authentication.
  • Wallet Password: The password to decrypt the Privacy Enhanced Mail (PEM)-encoded private certificate, if it is encrypted.
  • Wallet Content: The security credentials required to establish a mutual TLS (mTLS) connection to Oracle Database.
  • Distinguished Name: The distinguished name (DN) that should be matched with the certificate DN.
  • Match Distinguished Name: Whether the server certificate DN should be matched in addition to the regular certificate verification that is performed.
  • Allow Weak Distinguished Name Match: Whether the secure DN matching behavior which checks both the listener and server certificates has to be performed.
  • Use Optional Oracle Client Libraries: If you want to use node-oracledb Thick mode, turn this on. The process environment variables, NODE_ORACLEDB_CLIENT_LIB_DIR and NODE_ORACLEDB_CLIENT_CONFIG_DIR have to be defined for Thick mode to work.
  • Pool Min: The number of connections established to the database when a pool is created.
  • Pool Max: The maximum number of connections to which a connection pool can grow.
  • Pool Increment: The number of connections that are opened whenever a connection request exceeds the number of currently open connections.
  • Pool Maximum Session Life Time: The number of connections that are opened whenever a connection request exceeds the number of currently open connections.
  • Pool Connection Idle Timeout: The number of connections that are opened whenever a connection request exceeds the number of currently open connections.
  • Connection Class Name: DRCP/PRCP Connection Class.
  • Connection Timeout: The timeout duration in seconds for an application to establish an Oracle Net connection.
  • Transport Connection Timeout: The maximum number of seconds to wait to establish a connection to the database host.
  • Keepalive Probe Interval: The number of minutes between the sending of keepalive probes.

To set up your database connection credential:

  1. Enter your database's username as the User in your n8n credential. Run this query to confirm the username:

    1
    SELECT SYS_CONTEXT('USERENV', 'SESSION_USER') AS session_user FROM dual;

  2. Enter your database's connection string as the Connection String in your n8n credential. Run this query to confirm the database name:

    1
    SELECT SYS_CONTEXT('USERENV', 'CON_NAME') AS current_pdb FROM dual;

  3. If your database uses SSL and you'd like to use SSL for the connection, turn this option on in the credential. If you turn it on, enter the information of your OracleDB SSL certificate in these fields:

    1. Enter the output of PEM-encoded wallet file, ewallet.pem contents after retaining the new lines. The command
    1
    node -e "console.log('{{\"' + require('fs').readFileSync('ewallet.pem', 'utf8').split('\n').join('\\\\n') + '\"}}')"

    can be used to dump file contents in the Wallet Content field.

Refer to Node OracleDB for more information on working with TLS connections.

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