一.问题描述:[oracle@fsdb ~]$ sqlplus / as sysdbaSQL*Plus: Release 10.2.0.3.0 - Production on Mon Jul 12 12:47:33 2010Copyright (c) 1982, 2006, Oracle. All Rights Reserved.Connected.SQL> alter user sys identified by "xxxxxxxx"; alter user sys identified by "xxxxxxxx"ERROR at line 1:ORA-01012: not logged onSQL> select username,status,count(1) from v$session group by username,status;select username,status,count(1) from v$session group by username,status*ERROR at line 1:ORA-01012: not logged onSQL> ...
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