Re: Quick Question as I can't find the answer (Advanced Compression)

From: Chris Taylor <christopherdtaylor1994_at_gmail.com>
Date: Tue, 15 May 2018 09:30:45 -0500
Message-ID: <CAP79kiRiFrqa5SRmKzCuHuBFav2yoUkVz8ETuAjOVNKRYo8DKw_at_mail.gmail.com>



Ah - I missed that part about it being specific to ONLINE operations.

Thanks,
Chris

On Tue, May 15, 2018 at 9:27 AM, Oleksandr Denysenko <odenysenko_at_gmail.com> wrote:

> Hello.
>
> use one of (to not trigger ACO usage):
>
> 1) move without ONLINE option - quite good for historical data
>
> 2) create new table with the same structure and compression enabled using
> CTAS
>
> create the same indexes. troubles with GLOBAL....
>
> do EXCHANGE PARTITION
>
> I prefer 2) because during this operation you may do RIGHT ORDER BY to
> place repeating values closer and increase compression ratio or increase
> indexes clustering factor.
>
> Best Regards,
>
> Oleksandr Denysenko
>
> 15.05.2018 16:48, Chris Taylor пишет:
>
> If we (DBAs) want to specify compression on a Partition/Subpartition,
> which options are specific to Advanced Compression and which are not?
>
> For example, this link says:
> " Certain uses of
> Online Move Partition require Advanced Compression: specifically, if the
> feature is used to move a partition or subpartition to a compressed format
> including Basic, Advanced Row, or Hybrid Columnar Compression."
> https://blogs.oracle.com/dbstorage/online-move-
> partition-to-any-compressed-format-a-lesser-known-feature-
> of-advanced-compression
>
> I'm trying to find a simple answer on how to get compression and avoid
> advanced compression gotchas as we're not licensed to use it.
>
> Chris
>
>
>

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Received on Tue May 15 2018 - 16:30:45 CEST

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