SQL*Plus: Release 11.2.0.1.0 Production on Mon Apr 23 19:29:19 2018 Copyright (c) 1982, 2010, Oracle. All rights reserved. Enter user-name: system Enter password: ERROR: ORA-01034: ORACLE not available ORA-27101: shared memory realm does not exist Process ID: 0 Session ID: 0 Serial number: 0 Enter user-name: sysdba Enter password: ERROR: ORA-01034: ORACLE not available ORA-27101: shared memory realm does not exist Process ID: 0 Session ID: 0 Serial number: 0
ORA-27101 while trying to login after shutdown immediate
oracleoracle-11g-r2
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Best Answer
I think you did the following steps and caught this error.
You tried to start SQL*PLUS and starting the database.
The problem is the database has not started to do the authentication for these supplied usernames.
You could connect to the idle instance using
as as sysdba
as the username to start the instance.