ORA-12520

ORA-12520

ORA-12520 : TNS:listener could not find available handler for requested type of server Cause : None of the known and available service handlers for requested type of server (dedicated or shared) are appropriate for the client connection. Action : Run "lsnrctl services" to ensure that the instance(s) have registered with the listener and that the appropriate handlers are accepting connections. More Information http://www.shutdownabort.com/errors/ORA-12520.php

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