ORA-01031 While Connecting As Sysdba On Windows With A Domain User

(Doc ID 1071638.1)

Last updated on OCTOBER 24, 2017

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 9.2 to 11.2]
Information in this document applies to any platform.
Checked for relevance on 10-APR-2013


While trying to connect to a database running on Windows using "/ as sysdba" from an OS session started as a domain user the following error occurs:

sqlplus / as sysdba

SQL*Plus: Release - Production on M Mar 8 17:22:36 2010

Copyright (c) 1982, 2007, Oracle. All Rights Reserved.

ORA-1031: Insufficient privileges.

The domain user is a direct member of the local ORA_DBA group. If the Oracle Service is started as a domain user and not as Local System Account then the OS authentication will work for any user.


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