Re: bitand functions and NUMBER(20)
- From: Stefan Kuhn <skuhn@xxxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Thu, 19 Jul 2007 15:46:48 +0200
On Thursday 19 July 2007 15:30, Mark W. Farnham wrote:
> I'm curious how you're establishing the value that Oracle is returning.
Hm, I assumed that 9.2234E+18 is different from 9368617832122679304, which
would be 9.3686E+18. I also used Tora for the query, and it displays
9223372036854775807.
Stefan
>
> This could possibly just be a problem with the column format not being wide
> enough for a fully expressed displayed answer.
>
> Regards,
>
> mwf
>
> -----Original Message-----
> From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]
> On Behalf Of Stefan Kuhn
> Sent: Thursday, July 19, 2007 8:18 AM
> To: oracle-l@xxxxxxxxxxxxx
> Subject: bitand functions and NUMBER(20)
>
> Hi all,
> I have got a column defined as NUMBER(20) and want to use bit functions on
> it.
> It seems that oracle bitand function is restricted in length. To give an
> example:
> select bitand(10846370260800065548,9368617832122679304) from TABLE;
> returns 9.2234E+18, although the second figure is a subset of bits in first
> figure. So result should be 9368617832122679304.
> To make sure my figures are right, I did
> select 10846370260800065548 & 9368617832122679304;
> in Mysql and it gave 9368617832122679304.
> The problem does arise with figures of a certain length.
> What to do best (apart from changing the column type, which I would like to
> avoid)?
> I hope the question isn't too trivia...
> Stefan
--
Stefan Kuhn BSc MA
IPB Halle
AG Bioinformatik & Massenspektrometrie
Weinberg 3
06120 Halle
http://www.ipb-halle.de http://msbi.bic-gh.de
skuhn@xxxxxxxxxxxx Tel. +49 (0) 345 5582 1474 Fax.+49 (0) 345 5582 1409
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