We are using Oracle docker image for Oracle database 12.2.
By default it seems the Multitenant feature is enabled.
Is there any way it can be disabled?
We have only one application to support and do not want to create pluggable database for that.
Any help greatly appreciated!
Thanks
Fair warning:
The non-CDB architecture is desupported starting in Oracle Database 20c.
You can use the CDB architecture with one user-created PDB without a Multitenant license. From Oracle Database 19c, this extended to three user-created PDBs in a CDB.
The short answer is there's no way to disable the CDB architecture.
To switch to it, you'll need to install a new non-CDB database. Then migrate the data from your existing database to it. For example with Data Pump export/import or some other data replication/migration tool.