Emergency Monitoring 和Real-Time ADDM, connect 数据库as SYSDBA Diagnostic mode, 这个功能在整个系统处于Hung的时候非常有用. 只不过Emergency Monitoring只能通过EM12c来做吗？@老托拉呱 如何sqlplus / as sysdba with Diagnostic Mode? SELECT dbms_addm.real_time_addm_report() FROM dual;
