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Automating Oracle
Oracle Tips by Mike Ault |
The DBMS_JOB Package
We will be looking in detail at the SUBMIT,
ISUBMIT, RUN and REMOVE procedures in the course of this
presentation. For a more detailed discussion of how this package is
used look in “Oracle Built-In Packages” by Steven Feuerstein,
Charles Dye and John Beresniwicz from O’Reilly Publishing or
“Oracle8 Administration and Management” by Mike Ault from Wiley and
Sons publishing.
To submit a job to the job queues you use either
the ISUBMIT or SUBMIT procedures. The difference between ISUBMIT and
SUBMIT is that with ISUBMIT you must set the job number manually
while with SUBMIT a job number is pulled from an internal sequence.
The standard for both of the procedures is:
DBMS_JOB.SUBMIT(job_num, what, next_date, interval, no_parse)
Where:
Job_num is a number (an IN for ISUBMIT, and OUT
for SUBMIT)
What is a specific PL/SQL action
Next_date is a date expression for when the
action should first be taken
Interval is a character string
that evaluates to a date in the
future
No_parse is a boolean the specifies when the
PL/SQL should be parsed (defaults to false)
An example job submission using the ISUBMIT
procedure would be:
EXECUTE
DBMS_JOB.ISUBMIT(999,’BEGIN testit; END;’,SYSDATE,’SYSDATE+(15/1440)’);
SEE CODE DEPOT FOR FULL SCRIPTS
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For more information on this topic, I recommend Don
Burleson's latest book "Oracle
Tuning: The Definitive Reference".
You can buy it direct from the publisher for 50%-off and get
instant access to the code depot of Oracle tuning scripts: |
http://www.rampant-books.com/book_1002_oracle_tuning_definitive_reference_2nd_ed.htm
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