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Cannot Connect As "/ as sysdba" ORA-27140 ORA-27300 ORA-27301 ORA-27302 And ORA-27303 In Trace File (Doc ID 453959.1)

Last updated on JULY 28, 2017

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 10.2 to 11.2]
Oracle Database - Enterprise Edition - Version to [Release 12.1]
Information in this document applies to any platform.


Connect " /as sysdba" is showing connected but failing when performing any query.

$ sqlplus "/as sysdba"

SQL*Plus: Release - Production on Wed Aug 8 19:34:19 2007

Copyright (c) 1982, 2006, Oracle. All Rights Reserved.

SQL> select * from v$instance;
select * from v$instance
ERROR at line 1:
ORA-01012: not logged on


gid of the $ORACLE_HOME/bin/oracle was changed when the database was running.


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