Database configuration issue: several errors

Question

Hi,
I'm trying to install Oracle Database and have a problem with configuring it right.
When I try to connect via "cmd >> sqlplus" I 'm able to connect.
When trying to connect through PL/SQL I get an "ORA-12154 error" and when trying to connect via GUI of SQL* Plus I get an "ORA-12560 error."
I tried to test mij tnslistener by "tnsping localhost" which returns TNS-03505 error. When trying "tnsping <SID> I get OK.
My tnsnames.ora is shiwn below:
I replaced the original SIDs by <SID> for online posting.
# tnsnames.ora Network Configuration File: C:\oracle\product\10.1.0\Db_4\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
<SID> =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = <SID>)
MICROLAB =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SID = <SID>)
(SERVER = DEDICATED)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
(CONNECT_DATA =
(SID = <SID>)
(PRESENTATION = RO)
I'm working on it now for a few days and I hope someone can help me with this.
Thanks in advance!

Answer 1

Hi there,
could you please be a bit more precise? I am assuming
- you are installing Oracle x on windows
- you set your SID on the command line
- you can connect to sqlplus such as in sqlplus scott/tiger (sid is the env. variable)
sqlplusw does not work but your listener is up. Try a lsnrctl services to see which services are registered with the listener. Then tnsping <service_name>. If the listener complains about not knowing the service_name, change tnsnames.ora to reference SID=<sid> instead of SERVICE_NAME = <SID>
Connect to sqlplusw similar to this: sqlplusw scott/tiger@sid
If you still get problems, add the db domain to the sid, ie. sqlplusw scott/[email protected]
HTH
Martin