OCP - 1Z0 - 053 - V13.02 - 276 문제

276.The following command is executed to create the baseline template:
SQL> EXECUTE
DBMS_WORKLOAD_REPOSITORY.CREATE_BASELINE_TEMPLATE(START_TIME=>
TO_TIESTAMP(SYSDATE+2),
END_TIME=>TO_TIMESTAMP(SYSDATE+10),
BASELINE_NAME=>'Mybase4',
TEMPLATE_NAME=>'Mytemp4',
EXPIRATION=>NULL);
Which statement is true about the effect of the above command?
A. It creates a baseline template that never expires.
B. It produces an error because no snapshot information is provided to create the baseline.
C. It creates a baseline template that expires after the Automatic Workload Repository (AWR) retention period.
D. It creates a repeating baseline template that repeats after the Automatic Workload Repository (AWR) retention period.
Answer: A
답 해석:
참고:http://docs.oracle.com/cd/E11882_01/appdev.112/e40758/d_workload_repos.htm#ARPLS69131
Parameters
Table 162-24 CREATE_BASELINE_TEMPLATE Procedure Parameters
Parameter
Description start_time
Start Time for the baseline to be created' end_time
End Time for the baseline to be created baseline_name
Name of baseline to be created template_name
Name for the template expiration
Expiration in number of days for the baseline. If  NULL , then expiration is infinite, meaning do not drop baseline ever. Defaults to  NULL dbid
Database Identifier for baseline. If  NULL , this takes the database identifier for the local database. Defaults to NULL . day_of_week
Day of week that the baseline should repeat on. Specify one of the following values:  SUNDAY ,  MONDAY ,  TUESDAY , WEDNESDAY ,  THURSDAY ,  FRIDAY ,  SATURDAY . hour_in_day
Value of 0-23 to specify the Hour in the Day the baseline should start duration
Duration (in number of hours) after hour in the day that the baseline should last baseline_name_prefix
Name for baseline prefix. When creating the baseline, the name of the baseline will be the prefix appended with the date information.