The following procedure below aims to create an Oracle 12c database by command line with only the CDB by enabling the ENABLE_PLUGGABLE_DATABASE = TRUE parameter for a possible creation of PDBs in the future. Therefore, it follows the procedures: Creating database directories and granting permissions to the oracle user: Creating the database pfile with the ENABLE_PLUGGABLE_DATABASE parameter set to TRUE, this way it will be possible to create PDBs in the future: Setting the environment variable and initializing the database in NOMOUNT status: Creation of the database: …