connecting pdb user to oracle 12c gives error ORA-01033

If you connect to a user in a PDB and u get error ORA-01033

and following query returns MOUNTED

SELECT name, open_mode FROM v$pdbs;

then we need to open it in read write mode and save state so that it would survive a shutdown.



sqlplus / as sysdba

SELECT name, open_mode FROM v$pdbs;


alter pluggable database PDBORCL open read write;


alter pluggable database all save state;