标题: ORA-12523: TNS:listener could not find instance [打印本页] 作者: admin 时间: 2016-8-9 10:16 标题: ORA-12523: TNS:listener could not find instance ORA-12523:TNS:listener could not find instance appropriate for the client connection Cause: The listener could not find any available (database)instances, that are
appropriate for the client connection. Action: Run"lsnrctl services" to ensure that the instance(s) are registered withthe
listener, and have status READY.