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Oracle Job Scheduling

Chapter 1 - Overview of Oracle Job Scheduling

Oracle 10g Scheduler Overview

If the parameter is set to a non-zero value, the job coordinator will run permanently, but the value will only constrain the number of job slaves that can be started to run jobs scheduled using the dbms_job package.  The value has no affect on the number of job slave processes that are allocated to jobs scheduled using the dbms_scheduler package.

The next section will provide a brief comparison of the features available in the old and in the new style Oracle schedulers.

Features Comparison between dbms_job and dbms_scheduler

The Oracle 10g scheduler has significantly more functionality than its predecessor, which invariably results in it having a significantly more feature rich API.  The following table, Table 1.1, provides a brief feature comparison between the dbms_job and dbms_scheduler packages.




Schedule jobs based on anonymous PL/SQL blocks.



Schedule jobs based on PL/SQL procedures.



Schedule jobs based on operating system command and executable scripts.



Schedule reoccurring jobs with a repeat interval based on a PL/SQL expression that equates to a DATE or TIMESTAMP.



The above text is an excerpt from:

Oracle Job Scheduling
Creating Robust Task Management with dbms_job and Oracle10g dbms_scheduler

ISBN 0-9744486-6-4

by Dr. Timothy S. Hall

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