oracle11g Real Time SQL Monitoring

 两种方法监控SQL执行情况

1、v$session_longops记录某个操作执行时间超过6秒

2、v$SQL_MONITOR或者package DBMS_MONITOR来主动对SQL执行监控部署

 

 

该功能具备三个条件即可

A)

SQL> show parameter statistics_level

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
statistics_level                     string      TYPICAL

 

B)

SQL> select STATISTICS_NAME,SESSION_STATUS ,SYSTEM_STATUS,ACTIVATION_LEVEL,SESSION_SETTABLE  from v$statistics_level where STATISTICS_NAME = 'SQL Monitoring';

STATISTICS_NAME                                                  SESSION_
---------------------------------------------------------------- --------
SYSTEM_S ACTIVAT SES
-------- ------- ---
SQL Monitoring                                                   ENABLED
ENABLED  TYPICAL YES

 

C)

SQL> show parameter control_manage

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
control_management_pack_access       string      DIAGNOSTIC+TUNING