Re: "Preparing & Executing Massive DML Operations e.g. updates."

Karth

On Aug 19, 2013, at 11:18 AM, fmh <fmhabash_at_gmail.com> wrote:

> I usually prepare for such ops ...
> - Instance prep: disable archive logs, use no logging ,... etc.
> - Session prep: enable PQ, PDML, ...etc
> - SQL Prep: rewrite it e.g. updateble inline views vs. correlated queries.
> - Use BULK SQL if need to.
> I'm running an update on a partitioned table of 44M rows. It has been 3
> days now and there seems end is not near.
>
> 1) The update session is the only FG session in the db. v$session_longops
> show the query involved but all rows have 'sofar=totalwork'. The view has
> not updated since 2 days ago. How else can progress be monitored?
>
> 2) I did enable PDML ,but on 10.2.0.3, we hit this bug. The workaround did
> not work to disable the recycle bin. This was a major set back. Bug 4896424
> - Parallel DML can fail with ORA-60 (Doc ID 4896424.8)
>
>
> If you've had any experience with such operations, please provide your
> comments/feedback to the above inquiries.
> --
>
> ----------------------------------------
> Thank you
>
>
> --
> http://www.freelists.org/webpage/oracle-l
>
>

--
http://www.freelists.org/webpage/oracle-l