To set the history retention period for either window logging or job logging individually, which parameters of the
SET_SCHEDULER_ATTRIBUTE procedure need to be used? (Choose all that apply.)
A.
LOG_HISTORY
B.
JOB_LOG_RETENTION
C.
WINDOW_LOG_RETENTION
D.
WHICH_LOG
E.
LOG_NAME
Explanation:
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Attributes list of SET_SCHEDULE_ATTRIBUTE:
‘default_timezone’: Repeating jobs and windows that use the calendaring syntax retrieve the time
zone from this attribute when start_date is not specified. See “Calendaring Syntax” for more information.
’email_server’: The SMTP server address that the Scheduler uses to send e-mail notifications for job state
events. E-mail notifications cannot be sent if this attribute is NULL.
’email_sender’: The default e-mail address of the sender of job state e-mail notifications.
’email_server_credential’: The schema and name of an existing credential object that SYS has execute objectprivileges on. Default is NULL. The username and password stored in this credential are used to authenticate
with the e-mail server when sending e-mail notifications. This functionality is available with Oracle Database
11g Release 2 (11.2.0.2).
’email_server_encryption’: This attribute indicates whether or not encryption is enabled for this email server
connection, and if so, at what point encryption starts, and with which protocol. This functionality is available
starting with Oracle Database 11g Release 2 (11.2.0.2). Values are:
NONE: the default, indicating no encryption used
SSL_TLS: indicating that either SSL or TLS are used, from the beginning of the connection
STARTTLS:indicating that the connection starts unencrypted, but the command STARTTLS is sent to the email server and starts encryption
‘event_expiry_time’: The time, in seconds, before a job state event generated by the Scheduler expires from the
Scheduler event queue. If NULL, job state events expire after 24 hours.
‘log_history’: The number of days that log entries for both the job log and the window log are retained. Default is
30 and the range of valid values is 0 through 1000000.
‘max_job_slave_processes’: This Scheduler attribute is not used.
The PURGE_LOG Procedure uses “WHICH_LOG” and “LOG_NAME” attributes.
Syntax
Parameters
log_history
This specifies how much history (in days) to keep. The valid range is 0 – 1000000. If set to 0, no history is kept.
which_log
This specifies the log type. Valid values are: job_log, window_log, and job_and_window_log.
job_name
This specifies which job-specific entries must be purged from the jog log. This can be a comma-delimited list of
job names and job classes. Whenever job_name has a value other than NULL, the which_log argument
implicitly includes the job log.
