ORA-12514: TNS:listener does not currently know of service requested in connect
and now I cannot run the"startup mount" command. It says, "ORA-12514: TNS:listener does not currently know of service requested in connect"
The only way to get the connection back is to restart all the Oracle services. I verified that the Oracle_Home and Oracle_SID settings are right
and I also verified the Listner service is running. Any help with be appreciated.
C:\>lsnrctl status
LSNRCTL for 32-bit Windows: Version 11.1.0.7.0 - Production on 16-APR-2012 08:37:55
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Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))