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Knowledge Base : HQ : Oracle

ORA-12519, TNS:no appropriate service handler found

You may got the exception something like

Caused by: java.sql.SQLException: Listener refused the connection with the following error:
ORA-12519, TNS:no appropriate service handler found
The Connection descriptor used by the client was:
localhost:1521:XE


Solution:

1. Check the TNSListener service is running. If not restart the TNS Listener.

2. Check the Oracle service is started before HQ service start. Check the Service dependency.




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