Tuesday, March 4, 2014

What is the CJQ0 background process?

When starting the Oracle database you may see something like the following in the alert log:

Tue Mar 04 12:40:50 2014
CJQ0 started with pid=27, OS id=5526


This means your database is starting the optional background process for job queue processing

Oracle Database uses job queue processes to run user jobs.

The initialization parameter JOB_QUEUE_PROCESSES states the maximum number of job queue processes that can concurrently run on an instance.

Source: Oracle Documentation

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