Oracle Scheduler - Getting the LOG_ID from a job when it executes

Hi

I am using the Scheduler to run jobs - Is there a way to get the log_id from the schedule when the job starts execution? Or when does the scheduler persist the record into the DBA_SCHEDULER_JOB_RUN_DETAILS? Only after the job has completed? I need to log extra information to a user defined table but need to link the log_id in the SCHEDULER views to the totals I am capturing in my user defined table so that I can write a monitoring screen for users which I can mostly retreive the information I need from the views but I need a unique