Kamran Agayev's Oracle Blog

Oracle Certified Master

Archive for July 11th, 2012

Connected to an idle instance – while database is running

Posted by Kamran Agayev A. on 11th July 2012

I strongly believe you already know it, but would like to share if you’ve forgot and can’t understand why you’re not able to connect to the instance which is already running

[php]-bash-3.2$ sqlplus / as sysdba

SQL*Plus: Release 10.2.0.4.0 – Production on Wed Jul 11 09:24:18 2012

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

Connected to an idle instance.

SQL> exit

-bash-3.2$ ps -ef | grep smon
oracle 21202 1 0 Nov 8 ? 118:15 ora_smon_MYDB

[/php]

 

The database is running, but I can’t login to the instance. Let’s check ORACLE_HOME environment variable:

[php]

/home/oracle/product/10g/

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Do you see the slash in the end of the line? That’s the reason! Let’s set it again without the slash at the end and try again

 

[php]

-bash-3.2$ export ORACLE_HOME=/home/oracle/product/10g
-bash-3.2$ sqlplus / as sysdba

SQL*Plus: Release 10.2.0.4.0 – Production on Wed Jul 11 09:33:39 2012

Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 – 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL>

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Here it is …

 

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