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On Wed, Oct 13, 2010 at 10:45 PM, Ashish Kulkarni
<ashish.kulkarni13@xxxxxxxxx> wrote:
Hi
I have a requirement to identify what will be a size of table if i insert
10000 PDF files in this table,
I have a table with a blob column, and i know the average pdf file size on
windows is about 25KB,
is it safe to assume the size of this table will be 10000 X 25 = 250000 KB
which is about 244 MB.

There's some additional bytes required, but if you are rounding to an
average KB anyway, then they are insignificant.

I'd say your estimate is good enough.


Is there any accurate way to find this, the table will be in DB2 on AS400.

Sure, but you'd need to know exactly how big each file is.

Since you don't, I wouldn't bother.


Also if i save these PDF files on IFS folder, does the size to store on IFS
same as file stored in BLOB?


there'd be a per file/row overhead when you put it in the DB, but
again, it's probably close enough and teh size of teh IFS should be
the same as on Windows.


Is there any software to compress these PDF files for storing and then
uncompress to retrieve?



The PDF format support a built-in compression. How are these PDF's
generated? I'd recommend making sure they are being generated with
compression. Then you don't have to worry about it.

HTH,
Charles

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