no listener error
I am trying to connect to oracle database locally with out using connect string, but it is throwing no listener error.
$ echo $ORACLE_SID
baan
$ echo $ORACLE_HOME
/nhi2/app/oracle11g/product/11.2.0/dbhome_1
$ sqlplus sys/XXXX
SQL*Plus: Release 11.2.0.3.0 Production on Wed Oct 31 12:27:39 2012
Copyright (c) 1982, 2011, Oracle. All rights reserved.
ERROR:
ORA-12541: TNS:no listener
Enter user-name:
Even though i am not using any tnsnames it is still giving no listener error.
Please suggest how to resolve.
Thanks
Sandy