I have downloaded and installed Oracle Database Express edition. In SQL Developer, I am trying to create a new database connection that connects to SYS, however I am being rejected with the error:
Status : Failure -Test failed: Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
I found out that during installation I should have been prompted to create a password for sys, but no such thing happened.
I then tried to find the orapw[SID] file in /database. It was not there.
Any idea what I'm doing wrong?
Related
I am new to oracle, I just installed oracle when I am trying to connect to the database I got this error.ORA-12154: TNS: could not resolve the connect identifier specified.
To connect onn Oracle DB you should configure the file tnsnames.ora wich define DNS to your oracle server.
After configure file, you can test your connection with tnsping DNS_NAMED_SERVER
if you never heard about tns names, you can read more on Oracle Docs https://docs.oracle.com/database/121/NETRF/tnsnames.htm#NETRF260
Keep getting the following error:
"Status : Failure -Test failed: IO Error: The Network Adapter could not establish the connection"
when trying to connect to the Oracle database on my local machine. I've successfully logged on before, but when I try and rejoin a connection it presents this error.
I've tried re-installing, connecting as sys or other usernames, but the error keeps returning.
I am getting below error when ever trying to connect DB from sql developer.
Status : Failure -Test failed: Listener refused the connection with
the following error: ORA-12514, TNS:listener does not currently know
of service requested in connect descriptor
But successfully connect from command prompt.
I have set the path in environment variable correctly.
Can you please help me with this issue.
Thanks
I have installed Oracle 11g XE successfully. I have applied the bash profile from the the oracle user (source ~/.bash_profile). It applied successfully. SQL*plus can also connect connected.
But whenever I type the command lsnrctl status, it shows no listener listening.
I am getting following ORA errors. I tried it every single solution from Google
ORA-12546: TNS: permission denied
TNS -12537: TNS connection closed
TNS -12560: TNS Adapter Error
TNS-00507: connection closed
Linux Error :29(Illegal Seek)
0RA- 27369 - Operation not Permitted
I'm trying to define a database link on oracle 10.2 with connection identifier that throws the error in the question header.
I have the connection identifier (service name) in my tnsnames.ora file.
I can connect with sqlplus using this service name. no problem.
This is the creation sql:
create database link dev1.REGRESS.RDBMS.DEV.US.ORACLE.COM
connect to user1 identified by pass1
using 'dev1';
select using the link:
select * from t_users#dev1;
I get: ORA-12154: TNS:could not resolve the connect identifier specified
connecting to oracle with sqlplus to the 'unidentified' service (with no problem):
sqlplus user1/pass1#dev1
I defined another link to the same database I'm woking in (loopback) - works OK.
I read and tried anything I could find about the subject but did not solve this.
Any suggestions?
Try:
create database link dev1 connect to user1 identified by pass1 using 'dev1';
Also note that a tnsnames.ora entry for dev1 has to exist on the database server that you're linking from.