in order to improve performance on an insert statement that places millions of rows
into that table what steps can be done..
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
where does the data for the insert come from?
another table? another db? file? VALUES coded?
that part might be optimizable ...

anything else is about the target table:
does it have indexes ? yes => are they on a dedicated tablespace?
does it have INSERT triggers? yes => could they be deactivated for this big insert?
is the table partitioned?
and a couple of others.

Aaron ShiloChief Database ArchitectCommented:

you can use NOLOGGING
you can use APPEND
you can use DIRECT PATH with SQLLDR

In addition have a look at this BULK INSERT using PL/SQL

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