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$ sqlplus '/as sysdba'
SQL*Plus: Release 10.2.0.1.0 - Production on Thu Dec 10 13:38:57 2009
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup;
ORACLE instance started.
Total System Global Area 5016387584 bytes
Fixed Size 2027744 bytes
Variable Size 922750752 bytes
Database Buffers 4076863488 bytes
Redo Buffers 14745600 bytes
Database mounted.
Database opened.
SQL> archive log list;
Database log mode No Archive Mode
Automatic archival Disabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 62
Current log sequence 64
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 5016387584 bytes
Fixed Size 2027744 bytes
Variable Size 922750752 bytes
Database Buffers 4076863488 bytes
Redo Buffers  
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