How to create pluggable database in oracle ?

 create pluggable database in oracle 

SQL> show con_name 

CON_NAME

------------------------------

CDB$ROOT

SQL> 

SQL> show pdbs

    CON_ID CON_NAME   OPEN MODE  RESTRICTED

---------- ------------------------------ ---------- ----------

2 PDB$SEED   READ ONLY  NO

3 PDB   READ WRITE NO

SQL> 

SQL> 

SQL> 

SQL> 

SQL> create pluggable database demo1 admin user demo1 identified by demo1

  2  file_name_convert=('/u01/app/oracle/oradata/DB1/pdbseed','/u01/app/oracle/oradata/demo1');   

Pluggable database created.

SQL> show pdbs

    CON_ID CON_NAME   OPEN MODE  RESTRICTED

---------- ------------------------------ ---------- ----------

2 PDB$SEED   READ ONLY  NO

3 PDB   READ WRITE NO

4 DEMO1   MOUNTED

SQL> alter pluggable database demo1 open read write;

Pluggable database altered.

SQL> show pdbs

    CON_ID CON_NAME   OPEN MODE  RESTRICTED

---------- ------------------------------ ---------- ----------

2 PDB$SEED   READ ONLY  NO

3 PDB   READ WRITE NO

4 DEMO1   READ WRITE NO

SQL> 

SQL> 

SQL>       

SQL> alter session set container=demo1;

Session altered.

SQL> show con_name 

CON_NAME

------------------------------

DEMO1

SQL> 

SQL> 

SQL> 

SQL> select name from v$pdbs;

NAME

--------------------

DEMO1

SQL>