I have to recover database.

Question

Need quick help. I am refreshing a dev database from prod's backup. Using rman commands which is using control file. I have restored control file from tape backup. I have read I now I am supposed to do a alter database mount. When I did that I am getting the following errors :
SQL> alter database mount;
alter database mount
ERROR at line 1:
ORA-03113: end-of-file on communication channel
SQL> select * from v$instance;
ERROR:
ORA-03114: not connected to ORACLE
Can any one help what needs to be done.
Thanks
/Sh

Answer 1

ORA-03113 end-of-file on communication channel
Cause: An unexpected end-of-file was processed on the communication
channel. The problem could not be handled by the Net8 two-task software. This
message could occur if the shadow two-task process associated with a Net8
connect has terminated abnormally, or if there is a physical failure of the
interprocess communication vehicle, that is, the network or server machine
went down.
In addition, this message could occur when any of the following
statements/commands have been issued:
n ALTER SYSTEM KILL SESSION ... IMMEDIATE
n ALTER SYSTEM DISCONNECT SESSION ... IMMEDIATE
n SHUTDOWN ABORT/IMMEDIATE/TRANSACTIONAL
Action: If this message occurs during a connection attempt, check the setup
files for the appropriate Net8 driver and confirm Net8 software is correctly
installed on the server. If the message occurs after a connection is well
established, and the error is not due to a physical failure, check if a trace file
was generated on the server at failure time. Existence of a trace file may suggest
an Oracle internal error that requires the assistance of Oracle Support Services.
ORA-03114 not connected to ORACLE
Cause: A call to Oracle was attempted when no connection was established.
Usually this happens because a user-written program has not logged on. It may
happen if communication trouble causes a disconnection. In addition, this
message could occur when ALTER SYSTEM KILL SESSION or ALTER SYSTEM
DISCONNECT SESSION were issued with the IMMEDIATE qualifier because,
in those cases, the client’s connection to the database is terminated without
waiting for the client to issue a request.
Action: Try again. If the message recurs and the program is user written, check
the program.