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Re: BLOB fields slow down queries

From: DA Morgan <damorgan_at_psoug.org>
Date: Tue, 26 Sep 2006 16:06:01 -0700
Message-ID: <1159311961.876064@bubbleator.drizzle.com>


Big George wrote:
> Hello,
>
> If I run this query:
>
> select MyID, MyDescription, MyblobField

>>From MyTable

>
> Brings 500 records but it takes 30 seconds !
>
> If I select without any blob fied like:
>
> select MyID, MyDescription
>>From MyTable

>
> It's fast.
>
> The blob fields are storing images like jpg or gif files.
> Approximately, each field stores 250 KB.
> I know that blob fields are slowing down the query, but could be any
> way to accelerate it?
>
> Thank you!

And you need to put 500 (x 250K = 125MB) blobs into memory at one time why?

-- 
Daniel Morgan
University of Washington
Puget Sound Oracle Users Group
Received on Tue Sep 26 2006 - 18:06:01 CDT

Original text of this message

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