Home » Oracle » 1z0-117 » Which two statements are true regarding statistics gathered for APPS1 service?
A database instance is configured in the shared server mode and it supports multiple applications running on a middle tier. These applications connect to the database using different services. You enabled the statistics gathering for the service by using the following command:
SQL > EXECUTE DBMS_MONITOR.SERV_MOD_ACT_STAT_ENABLE (‘APPS1’, NULL, NULL);
Which two statements are true regarding statistics gathered for APPS1 service?
A. The statistics are gathered for all the modules and actions within the service.
B. The statistics are collected at the session level for all sessions connected using the service.
C. The statistics are aggregated and stored in the V$SERV_MOD_ACT_STATS view.
D. The statistics are gathered for all the modules using the service only when DBMS_APPLICATION_INFO.SET_MODULE is executed to register with the service.
E. Statistics gathering is enabled only for the subsequent sessions using the service.
F. The statistics are gathered for all the applications using the service only when DBMS_APPLICATION_INFO.SET_ACTION is executed to register with the service.
Correct Answer: BC
Explanation/Reference:
--MI DAVA A,B,C--
SERV_MOD_ACT_STAT_ENABLE Procedure
This procedure enables statistic gathering for a given combination of Service Name, MODULE and ACTION. Calling this procedure enables statistic gathering for a hierarchical combination of ACTION. Calling this procedure enables statistic gathering for a hierarchical combination of Service name, MODULE name, and ACTION name on all instances for the same database. Statistics are accessible by means of the V$SERV_MOD_ACT_STATS view.
Note:
*Syntax
DBMS_MONITOR.SERV_MOD_ACT_STAT_ENABLE(
service_name IN VARCHAR2,
module_name IN VARCHAR2,
action_name IN VARCHAR2 DEFAULT ALL_ACTIONS);
Parameter,Description
service_name
Name of the service for which statistic aggregation is enabled
module_name
Name of the MODULE. An additional qualifier for the service. It is a required parameter.
action_name
Name of the ACTION. An additional qualifier for the Service and MODULE name. Omitting the parameter (or supplying ALL_ACTIONS constant) means enabling aggregation for all Actions for a given Server/Module combination. In this case, statistics are aggregated on the module level.
Reference:Oracle Database PL/SQL Packages and Types Reference11g, SERV_MOD_ACT_STAT_ENABLE Procedure
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