Enable Google Service Account and Find the GCP Service Account Name

Prior to using a Google Cloud Platform (GCP) resource with a Google service account you need to enable GCP access for your Autonomous Database instance.

Enable Google service account authentication with DBMS_CLOUD_ADMIN.ENABLE_PRINCIPAL_AUTH.
For example, to enable Google service account authentication for the ADMIN user:
```
BEGIN
    DBMS_CLOUD_ADMIN.ENABLE_PRINCIPAL_AUTH(
        provider => 'GCP' );
END;
/
```
Enable Google service account authentication for a non-ADMIN user, adb_user as follows:
```
BEGIN
    DBMS_CLOUD_ADMIN.ENABLE_PRINCIPAL_AUTH(
        provider => 'GCP',
        username => 'adb_user');
END;
/
```
If you want the specified user to have privileges to enable Google service account authentication for other users, set the params parameter grant_option to TRUE.
```
BEGIN
    DBMS_CLOUD_ADMIN.ENABLE_PRINCIPAL_AUTH(
        provider => 'GCP',
        username => 'adb_user',
        params   => JSON_OBJECT('grant_option' value TRUE));
END;
/
```
After you run DBMS_CLOUD_ADMIN.ENABLE_PRINCIPAL_AUTH with grant_option set to TRUE, adb_user can enable Google service account authentication for another user. For example, if you connect as adb_user, you can run the following command to enable GCP service account access for adb_user2:
```
BEGIN
    DBMS_CLOUD_ADMIN.ENABLE_PRINCIPAL_AUTH(
        provider => 'GCP',
        username => 'adb_user2');
END;
/
```

When DBMS_CLOUD_ADMIN.ENABLE_PRINCIPAL_AUTH runs it creates a Google service account. Query CLOUD_INTEGRATIONS to obtain the service account details for your Autonomous Database instance.

SELECT * FROM CLOUD_INTEGRATIONS WHERE param_name = 'gcp_service_account';

PARAM_NAME           PARAM_VALUE
---------------------------------------------------------------------------
gcp_service_account  GCP-SA-22222-32222@gcp-example.iam.gserviceaccount.com

Note the gcp_service_account parameter value as you must supply this value when you configure GCP resources.

See ENABLE_PRINCIPAL_AUTH Procedure for more information.