Hi,
[oracle@localhost Desktop]$ rman
Recovery Manager: Release 12.1.0.2.0 - Production on Mon May 4 00:38:33 2015
Copyright (c) 1982, 2014, Oracle and/or its affiliates. All rights reserved.
RMAN> connect target sys/oracle@cdb1
connected to target database: CDB1 (DBID=828012650)
RMAN> backup database;
Starting backup at 04-MAY-15
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=284 device type=DISK
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup command at 05/04/2015 00:38:51
RMAN-06149: cannot BACKUP DATABASE in NOARCHIVELOG mode
RMAN> exit
Recovery Manager complete.
[oracle@localhost Desktop]$ sqlplus
SQL*Plus: Release 12.1.0.2.0 Production on Mon May 4 00:38:57 2015
Copyright (c) 1982, 2014, Oracle. All rights reserved.
Enter user-name: sys as sysdba
Enter password:
Connected to:
Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options
SQL> shutdown immediate;
Pluggable Database closed.
SQL> startup nomount;
SQL> startup;
Pluggable Database opened.
SQL>
Please tell me how to change archive log mode in oracle 12.1.0.2.0 db