| QUERY..help..:o) [message #371392] |
Thu, 12 October 2000 09:42  |
zizou
Messages: 1
Registered: October 2000
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Junior Member |
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i have 3 tables
frequentation (dancer, club)
where the dancer x goes to the club y
liking(dancer, music)
where the dancer x likes the kind of music z
playing (club, music)
where the club y plays the kind of music z
i want a query that list all the dancers, in a way that any club where x goes to plays at least one kind of music that x likes
and also this other query
the list of dancers, in a way that not one of the clubs where x goes to, plays a type of music that he likes
thanks..:)))
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| Re: QUERY..help..:o) [message #371397 is a reply to message #371392] |
Fri, 13 October 2000 06:03  |
Prem
Messages: 79
Registered: August 1998
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Member |
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Zizou,
For ur first query,
SELECT distinct f.dancer from f, l, p where f.dancer = l.dancer and
f.club = p.club and l.music = p.music
For the 2nd query
select distinct dancer from f where dancer not in (
SELECT f.dancer from f, l, p where f.dancer = l.dancer and
f.club = p.club and l.music = p.music)
I have used the alias as follows
f - frequentation
l - liking
p - playing
hth
Prem :)
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