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/oracle/app/oracle/10.2.0> sqlplus /nolog
SQL*Plus: Release 10.2.0.1.0 - Production on Mon Mar 26 15:13:28 2007
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> show user
USER is ""
SQL> conn /as sysdba;
Connected.
SQL> sho user
USER is "SYS"
SQL> select name from v$database;
select name from v$database
*
ERROR at line 1:
ORA-01012: not logged on
SQL> create table test (a varchar2(2));
create table test (a varchar2(2))
*
ERROR at line 1:
ORA-01012: not logged on |