Oracle Database 19c Multitenant: now 3 PDBs allowed without Multitenant Option
According to the updated licensing information for Oracle Database 19c (https://docs.oracle.com/en/database/oracle/oracle-database/19/dblic/Licensing-Information.html#GUID-0F9EB85D-4610-4EDF-8…) you can now create up to 3 PDBs in a CDB without Multitenant Option, i.e. even in SE2 (“For all offerings, if you are not licensed for Oracle Multitenant, then you may have up to 3 PDBs in a given container database at any time.”). This applies to Oracle Database 19c only, the licensing restrictions for Oracle 18c weren’t changed (only 1 PDB allowed).
And there’s the information from #OOW19 via Twitter that the Non-CDB-architecture will be desupported with Oracle 20c (https://twitter.com/AnujMo/status/1174032073000022016)