| From: | merlyn(at)stonehenge(dot)com (Randal L(dot) Schwartz) |
|---|---|
| To: | Oliver Vecernik <vecernik(at)aon(dot)at> |
| Cc: | Johan Björk <johan(at)websidorna(dot)com>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: bit operations |
| Date: | 2001-07-04 17:09:21 |
| Message-ID: | m1d77gzkn2.fsf@halfdome.holdit.com |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
>>>>> "Oliver" == Oliver Vecernik <vecernik(at)aon(dot)at> writes:
>> Say I wanna check if 8 (1xxx) and 2 (xx1x) is set, how do I do that?!
Oliver> Sorry, I didn't read the whole question first:
Oliver> select * from table where ((flags & 8) <> 0) and ((flags & 2) <> 0);
In the old days, we spelled that as flags & 10 = 10. :) Wouldn't that
work just as well?
--
Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095
<merlyn(at)stonehenge(dot)com> <URL:http://www.stonehenge.com/merlyn/>
Perl/Unix/security consulting, Technical writing, Comedy, etc. etc.
See PerlTraining.Stonehenge.com for onsite and open-enrollment Perl training!
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Jeff Rhys-Jones | 2001-07-04 17:27:07 | Inner Join? |
| Previous Message | Chuck Shunk | 2001-07-04 17:05:05 | Remote queries |