From: Peter Brawley
Date: May 23 2006 2:05pm
Subject: Re: I think I need a join
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Critters wrote:

 >I can get it to join on either countryA or countryB but not both :|

SELECT
  d.id, d.day,
  c1.country, c1.id,
  c2.country, c2.id
FROM days d
INNER JOIN countries c1 ON d.countryA = c1.id
INNER JOIN countries c2 ON d.countryB = c2.id
ORDER BY d.id

(Getting ready for the World Cup?)

PB

-----
> I think the following could be done with some sort of JOIN, but I am 
> now sure how:
>
>
>
> [country]:
> id, country, number
> 1, Germany, 27
> 2, Japan, 30
> 3, United States, 18
>
> [days]
> id, day, countryA, countryB
> 10, monday, 1, 3
> 11, tuesday, 2, 3
> 12, wednesday, 1, 2
>
> [result I want]
> 10, monday, Germany, 27, United States, 18
> 11, tuesday, Japan, 30, United States, 18
> 12, wednesday, Germany, 27, Japan, 30
>
> Hope that makes sence :)
>
> I can get it to join on either countryA or countryB but not both :|
> -- 
> David
>


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