pg.ddx.io  pgsql-sql@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: msi77 <msi77@yandex.ru>
To: Wes James <comptekki@gmail.com>
To: pgsql-sql@postgresql.org
Subject: Re: how to do this query
Date: Sun, 10 Jan 2010 01:52:00 +0300
Message-ID: <18301263077520@webmail108.yandex.ru> (raw)
In-Reply-To: <533df7fa1001091018v40f02b7cxf8eb631794605aee@mail.gmail.com>
References: <533df7fa1001082026h53b5d897x2fc1fa2a6f7ff6df@mail.gmail.com>
	<8071263036994@webmail102.yandex.ru>
	<533df7fa1001091018v40f02b7cxf8eb631794605aee@mail.gmail.com>

> schols_seleced like '%' || short_name || '%' doesn't make sense to me

select 'Ya-Ya' from 
(select
'schol1:schol2:schol3' as schols_selects 
) AS X
where schols_selects like '%schol2%'

> If you look at the contents of these fields short name containts
> "schol1", schols_selects containts "schol1:schol2:schol3" so
> schols_seleced like '%' || short_name || '%' doesn't make sense to me
> since the like operator is trying to find text1 in text two with %%
> right?
> 2010/1/9 msi77 <msi77@yandex.ru>:
> > Развернуть 
> > How about
> > 
> > schols_selected like '%' || short_name || '%'
> > > Развернуть 
> > > I have two tables:
> > > students
> > > stu_name
> > > schols_selected
> > > scholarships
> > > schol_name
> > > short_name
> > > schols_selected is made up of scholarships the students have selected,
> > > the field content will look like schol1:schol2:schol3
> > > I need a select that does something like this
> > > select schol_name, short_name, stu_name, schols_selected
> > > from scholarships, students
> > > where short_name is in schols_selected
> > > I have tried:
> > > where short_name like '%' || schols_selected || '%'
> > > but i'm not sure how to include a field result in between like operators.
> > > how do I get a list of scholarships based one which student selected
> > > it where the selected result is a string of colon seperated options?
> > > thx,
> > > -wj
> > > --
> > > Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org)
> > > To make changes to your subscription:
> > > http://www.postgresql.org/mailpref/pgsql-sql
> > Здесь спама нет http://mail.yandex.ru/nospam/sign
> 

Здесь спама нет http://mail.yandex.ru/nospam/sign



view thread (9+ messages)

Message-ID: <18301263077520@webmail108.yandex.ru>
Permalink:  ../18301263077520@webmail108.yandex.ru/
Also on:    postgresql.org/message-id/18301263077520@webmail108.yandex.ru

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-sql@postgresql.org
  Cc: msi77@yandex.ru, comptekki@gmail.com
  Subject: Re: how to do this query
  In-Reply-To: <18301263077520@webmail108.yandex.ru>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox