Instance Startup Fails With ORA-01012: Not Logged On
Last updated on JUNE 18, 2017
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 and later
Information in this document applies to any platform.
**Checked for relevance 03-Feb-2016**
You can successfully connect as sysdba but a subsequent startup of the database fails with an ORA-1012:
SQL*Plus: Release 18.104.22.168.0 Production on Thu Oct 6 11:03:24 2011
Copyright (c) 1982, 2010, Oracle. All rights reserved.
ORA-01012: not logged on
Environment parameters like NLS_LANG , ORA_NLS33 or ORA_NLS10 have been verified and are set correctly.
Oracle has been forcefully shutdown at OS level or crashed.
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