On 11/20/05, <b class="gmail_sendername">Walter Dnes</b> <<a href="mailto:waltdnes-SLHPyeZ9y/tg9hUCZPvPmw@public.gmane.org">waltdnes-SLHPyeZ9y/tg9hUCZPvPmw@public.gmane.org</a>> wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I'm at the tail end of some experiments with de-noising digital photos<br>from my camera.<br><br> My next personal project will be learning postgresql. I am familiar<br>with Oracle SQL and PL/SQL as an end-user/programmer, but not as an
<br>admin. I'm not a CS, but at work I do write some read-only queries.<br>We've got MS-Access via ODBC as well, but once you get past the really<br>simple stuff, GUI "Query By Example" runs into a wall. To give an idea
<br>of where I'm at, my "claims-to-fame" are...<br><br> - cross-tabbing table(s) *WITHOUT A SELF-JOIN*. (!^%$#& umpteenth-<br> order normalized table)<br><br> - A hack for bypassing the PL/SQL 1-megabyte total output limit, and
<br> the 255 bytes-per-line limit, for programs launched from the SQL<br> command prompt.</blockquote><div><br>
I don't believe Postgreqsl has such a limit. <br>
</div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> - I managed to figure out how to SELECT ... BULK COLLECT INTO an<br> "INDEX BY" table. It's so easy once you see it done once.
<br><br> Anyone aware of any "postgresql user groups" in the Toronto area?</blockquote><div><br>
Not that I'm aware of .. usually if I run into a question I visit the
documentation on the Postgresql site .. read the docs for version of
Postgresql that you have (I use 7.3.4); last time I visited you had the
choice between annotated and not annotated .. sometimes the annotations
are useful.<br>
</div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">What are the best quick guides to getting started? I've installed it<br>but haven't fired it up yet. Are there any booby-traps to watch for?
<br>E.g. ensure that it doesn't end up listening to external connections on<br>the internet?</blockquote><div><br>
All that's controlled by pg_hba.conf and postgresql.conf which are
normally located at /var/lib/pgdql/data .. I think the default is that
it only listens to local processes. <br>
<br>
I'm a command prompt kind of guy, so I am really familiar with psql and
pg_dump, the command line interface and the database dumper. From the
former, type \? and that should get you started into all of the good
stuff.<br>
</div></div><br>
Alex<br>
<br>-- <br>----------<br>Linux, Firefox and GMail .. what a combination.