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parallel dml (insert) DOP

edited Jul 27, 2016 10:06AM in Database DataWarehousing (MOSC) 6 commentsAnswered

Hi,

I used below hints for parallel insert (insert as select * from ), both the cases it used 2 parallel process, one for insert and other for select.

/*+parallel(<table_name>,10) nologging*/

/*+parallel(<table_name>,2) nologging*/

Can you please suggest, how this DOP was determined? I mean, what parameters/hints take precedence over others? What is the order of preference oracle takes while deciding DOP?

Thanks,

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