Skip site navigation (1) Skip section navigation (2)

Re: Tutorial: chapter 5

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: itdcgb <itdcgb(at)its(dot)hants(dot)gov(dot)uk>
Cc: pgsql-docs(at)postgresql(dot)org
Subject: Re: Tutorial: chapter 5
Date: 2000-12-12 16:47:51
Message-ID: 200012121647.LAA12907@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-docs
Applied.  Thanks.

[ Charset ISO-8859-1 unsupported, converting... ]
> In 'Joins between classes' in Section 5 of the tutorial we have, in
> the first paragraph:
> 
>     As an example, say we wish to find all the records that
>     are in the  temperature  range  of  other records. In
>     effect, we need to compare the temp_lo and temp_hi
>     attributes of each EMP instance to the temp_lo and
>     temp_hi  attributes of all other EMP instances.
> 
> I believe that EMP should read WEATHER, as the example query that
> follows joins WEATHER to itself.
> 
> EMP is often used in Oracle examples.
> 
> Regards,
> Graham
> 
> 


-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman(at)candle(dot)pha(dot)pa(dot)us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

In response to

pgsql-docs by date

Next:From: tulioDate: 2000-12-12 22:41:40
Subject: Compiling C Functions
Previous:From: Peter EisentrautDate: 2000-12-12 15:54:43
Subject: Re: Reference Manual

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group