oracle

Did you know you can make your own Long Running Operation that is available to the V$SESSION_LONGOPS system view?

At the bottom of the Oracle documentation for DBMS_APPLICATION_INFO is some example code: http://docs.oracle.com/cd/B19306_01/appdev.102/b14258/d_appinf.htm#i999254

In a previous post I posted Perl source code for a script that monitors V$SESSION_LONGOPS and reports progress of all current long operations: TODO

– Dave

One of the redeeming qualities of the Java Oracle Enterprise Manager client is the progress bar that comes up when you are viewing the long operations of a session. I wanted this functionality but didn’t want to wake up the big lug to get this info (it takes a long time to start up the OEM client and navigate to the screen to see the long operations progress bar).

So I decided to write a short script to emulate that functionality but take it one step further and show me info about _all_ the longops currently running on an instance.

If you have a lot of LOB data to move around with Oracle import/export utilities this might help you out. The default for the COMMIT parameter is No.

COMMIT=N : For tables that have a LOB column, commit is performed after loading each table
This is much faster but be aware that you will use more Rollback space since each table will be committed in one large transaction.

COMMIT=Y : For tables that have a LOB column, commit is performed after each row (slow!, much overhead added because so many transactions are used to import the data)