Oracle Database 11g Failing to mount on windows server 2012 I have an Oracle 11g database installed on Windows Server 2012. It's failing to mount after shutdown. The reason why i want to mount it is that i want to enable Archive log mode, and i have been able to do the basic steps of Enabling Archive Log Mode on Linux but the same steps are failing on mount stage:

Below are the steps i have done:


SHUTDOWN IMMEDIATE 
startup mount

It is here where the error below pops up:



  ORA-12505: TNS:listener does not currently know of SID given in
  connect     descriptor


PS C:\Users\inhousedwh&gt; sqlplus 
SQL*Plus: Release 11.2.0.1.0 Production on Thu Oct 17 17:46:02 2019 
Copyright (c) 1982, 2010, Oracle. All rights reserved. 
Enter user-name: sys@rvas as sysdba 
Enter password: 
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options 
SQL&gt; shutdown immediate; 
Database closed. 
Database dismounted. 
ORACLE instance shut down. 
SQL&gt; startup mount 
ORA-12505: TNS:listener does not currently know of SID given in connect descriptor
Use a local connection.

sqlplus sys as sysdba


or

sqlplus / as sysdba


In your output, you used a remote connection. Database instances can be started through remote connections only if you have registered them in the listener manually with static registration.