What does the latency parameter mean in scheduling propagation?
If a latency less than 0 was specified in the propagation schedule, the job is rescheduled to run after the specified latency. The time at which the job actually runs depends on other factors, such as the number of ready jobs and the number of job_queue_processes. It may also be affected by the value for job_queue_interval. Please refer to the MANAGING JOB QUEUES chapter of the Oracle9i Database Administrator’s Guide for more information on job queues and SNP background processes.