sqlplus / as sysdba hanged ...

if sqlplus / as sysdba hanged .... ( and database down ) .. then try this




oracle@solomon:~> rman

Recovery Manager: Release 10.2.0.4.0 - Production on Mon Aug 16 11:02:28 2010

Copyright (c) 1982, 2007, Oracle. All rights reserved.

RMAN> connect target /

connected to target database (not started)

RMAN> startup;

Oracle instance started
database mounted
database opened

Total System Global Area 608174080 bytes

Fixed Size 1268896 bytes
Variable Size 213910368 bytes
Database Buffers 385875968 bytes
Redo Buffers 7118848 bytes