Unable to use SQL*Plus...
I am getting this ERROR: ORA-12154: TNS:could not resolve the connect identifier specified
I have ensure that I have entered the correct password.
Check your local TNSNAMES.ORA File
Check your global_name setting with this SQL:
select * from global_name;
The query value should match your init.ora parms for db_name and db_domain
Check the listener status in server
Post the listener.ora and clients tnsnames.ora entry??