Thread: Exclude fields from SELECT command
<div class="Section1"><p class="MsoNormal">Hi Everybody<p class="MsoNormal"> <p class="MsoNormal">I’ve a table with 35 fieldsand would like to perform a SELECT command without specifying every single field.<p class="MsoNormal">As such, I’veuse the SELECT * command. Is there an approach to exclude 5 fields from being returned?<p class="MsoNormal"> <p class="MsoNormal">Thanksfor your time.<p class="MsoNormal"> <p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas">KindRegards</span><p class="MsoNormal"><span style="font-size:10.5pt;font-family:Consolas">Charles</span><p class="MsoNormal"> </div>
2009/3/16 Charles Tam <c.tam@osm.net.au>: > Hi Everybody > > > > I’ve a table with 35 fields and would like to perform a SELECT command > without specifying every single field. > > As such, I’ve use the SELECT * command. Is there an approach to exclude 5 > fields from being returned? > > > hello no, there are no way regards Pavel Stehule > Thanks for your time. > > > > Kind Regards > > Charles > >
Pavel Stehule wrote: > 2009/3/16 Charles Tam <c.tam@osm.net.au>: > >> Hi Everybody >> >> >> >> I’ve a table with 35 fields and would like to perform a SELECT command >> without specifying every single field. >> >> As such, I’ve use the SELECT * command. Is there an approach to exclude 5 >> fields from being returned? >> >> >> >> > > hello > > no, there are no way > > regards > Pavel Stehule > > >> Thanks for your time. >> >> >> >> Kind Regards >> >> Charles >> >> >> > > Workaround is create a view on that table excluding those 5 fields and then select * from that view . With regards Ashish Karalkar
Hello >> >> > > Workaround is create a view on that table excluding those 5 fields and then > select * from that view . > I know better solution. Use only thin tables. Wide tables are devil. :) regards Pavel Stehule > > With regards > Ashish Karalkar > > > > -- > Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-sql >
In what way it is devil ???? Clarifications. ..<br /><br /><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left:1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="im"><br /></div>Iknow better solution. Use only thin tables. Wide tables are devil. :)<br /></blockquote></div><br />
At 05:20 PM 3/16/2009, pgsql-sql-owner@postgresql.org wrote: >In-Reply-To: <1992170861895942422@unknownmsgid> >References: <1992170861895942422@unknownmsgid> >Date: Mon, 16 Mar 2009 22:45:54 +0100 >Message-ID: ><162867790903161445i78127316s1c0deb3bec0e15e5@mail.gmail.com> >Subject: Re: Exclude fields from SELECT command >From: Pavel Stehule <pavel.stehule@gmail.com> >To: Charles Tam <c.tam@osm.net.au> >Cc: pgsql-sql@postgresql.org > >2009/3/16 Charles Tam <c.tam@osm.net.au>: > > Hi Everybody > > > > > > > > Iâve a table with 35 fields and would like > to perform a SELECT command > > without specifying every single field. > > > > As such, Iâve use the SELECT * > command. Is there an approach to exclude 5 > > fields from being returned? > > > > > > > >hello > >no, there are no way > >regards >Pavel Stehule I think Pavel is right for 99% of the cases. But there is a "cure that is worse than the disease." You could select all columns from a bunch of tables without knowing what the column names were, excepting N columns, by iterating through the info schema data and building a SQL select appropriately (sql meta-programming I guess you would call it). But it's a real chore to do manually. If you have this need for some programmatic purpose (where some initial investment in effort will pay future dividends), then check out the info schema options: http://developer.postgresql.org/pgdocs/postgres/infoschema-columns.html In your case, I think you'd be looking for five values of "table_name" and then looking at all the "column_name" fields, building your column list, excepting the column_names you wish to exclude.. Best, Steve