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OERR: ORA-12519 TNS:no appropriate service handler found
¿Í»§¶ËÁ¬½Ó¼äЪÐÔʧ°Ü£¬±¨´íORA-12519
Cause: the listener could not find any available service handlers that are
appropriate for the client connection.
Action: run "lsnrctl services" to ensure that the instance(s) have registered
with the listener, and are accepting connections. ¼ì²élsnrctl service £¬instanceÒѾע²á£¬
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When the listener believes the current number of connections has reached maximum load,
it may set the state of the service handler for an instance to "blocked" and begin refusing
incoming client connections with either of the following errors: ora-12519 or ora-12516
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