ORA-65054
        Cannot open a pluggable database in the desired mode. PDB is opening in string mode, CDB is opened in string mode.
        
        
        Cause
        An attempt is being made to open a pluggable database (PDB) in a mode incompatible with the multitenant container database (CDB) or, if the PDB belonged to an application container, in a mode incompatible with the application root.
        Action
        Open the CDB or the application root in a compatible mode first and retry the operation.
        
     
    
    
        ORA-65054
        Cannot open a pluggable database in the desired mode.
        
        
        Cause
        An attempt was made to open a pluggable database (PDB) in a mode incompatible with the multitenant container database (CDB) or, if the PDB belonged to an application container, in a mode incompatible with the application root.
        Action
        Open the CDB or the application root in a compatible mode first and retry the operation.
        
     
    
    
        ORA-65054
        Cannot open a pluggable database in the desired mode.
        
        
        Cause
        An attempt was made to open a pluggable database (PDB) in a mode incompatible with the multitenant container database (CDB) or, if the PDB belonged to an application container, in a mode incompatible with the application root.
        Action
        Open the CDB or the application root in a compatible mode first and retry the operation.