How do I fix ORA 12514 TNS listener does not currently know of service requested in connect descriptor?

How do I fix ORA 12514 TNS listener does not currently know of service requested in connect descriptor?

Check that the SERVICE_NAME parameter in the connect descriptor of the net service name used specifies a service known by the listener. If an easy connect naming connect identifier was used, check that the service name specified is a service known by the listener. Check for an event in the listener. log file.

How do I start Oracle TNS listener?

Do the following:

1. Log on to the host where the Oracle database resides.
2. Change to the following directory: Solaris: Oracle_HOME/bin. Windows: Oracle_HOME\bin.
3. To start the listener service, type the following command: Solaris: lsnrctl START. Windows: LSNRCTL.
4. Repeat step 3 to verify that the TNS listener is running.

How do I stop and start scanning listener?

Start/ Stop / Relocate SCAN listener in Oracle 11gR2 RAC

1. Check listener status ( login to grid home) a) Check the cluster resource status. $ crsctl stat res -t. verify the output for listener.
2. Start scan listener: a) Start scan listener. $ srvctl start scan_listener.
3. Relocate SCAN listener.

When does ora-12541 TNS : no listener occur?

This technote identifies a potential resolution to the error, ORA-12541: TNS: no listener, which might occur when opening a project or during the Validating phase of project creation/conversion when using IBM® Rational® RequisitePro® (ReqPro) with an Oracle back end database.

Is there a listener for Oracle Database 18C?

On Windows you will need to do this in a command prompt started with administrator privileges, because it also start a Windows service. Or you can start the Windows service called something similar to OracleOraDB18Home1TNSListener. You have the wrong value set for the parameter KEY in your listener.ora file.

Why is the listener not running in the Ora file?

The connection request to the database could not be completed because the listener is not running or the listening address supplied in the TNSNAMES.ORA file is invalid. Check that the listener has been started by running the lsnrctl utility on the Oracle server.

How to delete oradb10g home1 listener in Oracle?

Steps to delete/re-create an Oracle Listener: Click “Start – Programs – Oracle – OraDb10g_home1 – Configuration and Migration Tools – Net Configuration Assistant” Select “Listener configuration” and choose ‘Next’ Choose ‘Delete’. Use the wizard to delete the listener (s). Repeat steps 4, 5 and 6 until *all* listeners have been deleted