Oracle SOA Suite 12c: Installation - Preparing the database

After a successful installation of Oracle 12c database the next step is to create a plugable databse (PDB).
Therefor you have to run the dbca (database creation assistant):

~/app/oracle/product/12.2.0/dbhome_1/bin/dbca

 

 The first check fails with:

[oracle@localhost ~]$ export ORACLE_SID=soasuite12c
[oracle@localhost ~]$ sqlplus

SQL*Plus: Release 12.2.0.1.0 Production on Sat Oct 7 17:00:21 2017

Copyright (c) 1982, 2016, Oracle.  All rights reserved.

Enter user-name: bpeladmin
Enter password:
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3701
Additional information: -1824536353
Process ID: 0
Session ID: 0 Serial number: 0

This is, because the tnsnames.ora is not correct:

[oracle@localhost admin]$ cat /home/oracle/app/oracle/product/12.2.0/dbhome_1/network/admin/tnsnames.ora
# tnsnames.ora Network Configuration File: /home/oracle/app/oracle/product/12.2.0/dbhome_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.

LISTENER_ORCL =
  (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))


ORCL =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
    )
  )

You have to add this entry:

SOASUITE12C =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = soasuite12c)
    )
  )

And here we go:

[oracle@localhost admin]$ sqlplus bpeladmin@soasuite12c

SQL*Plus: Release 12.2.0.1.0 Production on Sat Oct 7 17:22:14 2017

Copyright (c) 1982, 2016, Oracle.  All rights reserved.

Enter password:

Verbunden mit:
Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production

SQL> show con_name;

CON_NAME
------------------------------
SOASUITE12C

Next step is to run the RCU (repository creation utility).