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PL/SQL parallel processing

Oracle Database Tips by Donald Burleson


Oracle has a wealth of parallel features including parallel query, parallel DML, but it is also possible to perform parallel processing on Oracle using PL/SQL.

If using a shell script environment (ksh, bash), you can invoke parallel PL/SQL programs with the nohup command:

nohup sqlplus system/manager exec xxx &
nohup sqlplus system/manager exec yyy &
nohup sqlplus system/manager exec zzz &

The ampersand invokes the sqlplus in the background, such that the nohup commands ate invoked serially, but execute in parallel.  For return processing, you can write a simple daemon process to verify positive return codes ("process executed successfully"),

Within PL/SQL you can invoke parallel threads using parallel pipelined functions.
 

If you like Oracle tuning, you may enjoy the new book "Oracle Tuning: The Definitive Reference", over 900 pages of BC's favorite tuning tips & scripts. 

You can buy it direct from the publisher for 30%-off and get instant access to the code depot of Oracle tuning scripts.


 

 

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Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum.

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