Synchronization between the CBD and the PDB 12 c

Hello

I read the following the my 12 c new student guide:

If a common to users and roles had been created beforehand, the PDB new or closed must be synchronized to retrieve new common users and roles of the root. The synchronization is performed automatically if the PDB is opened in read-write mode. If you open the PDB in read-only mode, an error is returned.

SQL> select version from v$instance;
  12.1.0.1.0
SQL> sho con_name
  CDB$ROOT
SQL> select con_id,name, open_mode from v$pdbs;
  2 PDB$SEED            READ ONLY
  3 PDB2_1              READ ONLY
SQL> create user c##dude identified by dude;
  User created.
SQL> select * from PDB_PLUG_IN_VIOLATIONS;
  no rows selected.
SQL> drop user c##dude cascade;
  User dropped.

User dropped.

If I understand the student's guide, creating a common root user $ CBD can be created, modified, dropped when the PDB is mounted mode, but read-only must return an error.

Any ideas that I can not reproduce this behavior?

Thank you!

I suggest that repost you this thread in the forum shared.

Re-read that quote you posted.

In your example the PDB is NOT closed when you created the common user.

For this purpose, you do not have "open the PDB in read-only mode after having created a common user.

Common users must have privileges in all PDB files.

If you create a common user when a PDB file is closed the PDB data dictionary entries will not be updated.

When you open then the PDB in view write Oracle detects that the PDB data dictionary is out of sync and refresh it. It cannot do this if you open the PDB read-only.

Tags: Database

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