Search notes:

Oracle: DBA_SCHEDULER_GLOBAL_ATTRIBUTE

select
   lower(attribute_name) name
from
   dba_scheduler_global_attribute
order by
   lower(attribute_name);

current_open_window
default_timezone	This value is important for schedules which use the scheduler's calendaring syntax.
email_sender	Email address of the sender
email_server
email_server_credential	Name (including schema) of a credential object.
email_server_encryption	Possible values: `NONE`, `SSL_TLS` (the most common setting: SSL or TLS is used from the beginning of the connection) and `STARTTLS` (connection starts unencrypted and changes to encrypted with the `STARTTLS` command).
event_expiry_time	Time in seconds before a job state event generated by the scheduler expires.
file_watcher_count	Compare with the file watcher object.
last_observed_event
log_history	Number of days during which log entries (both job log and window log) are retained
max_job_slave_processes

The scheduler's attributes can be changed with dbms_scheduler.set_scheduler_attribute.

See also