On 28-Jul-2001 Ben Bleything wrote:
> Hello all!
>
> I have a question for all of you... I would very much appreciate your
> input.
>
> I'm building a database for a radio station. The database must allow
> the DJ to enter what they play and when, and allow the program director
> to create weekly reports for the record labels.
<snip>
Consider the case of the same recording that appears on two albums, the
original release and again on "The Best of ..."
The album is a different entity from the tracks. and they should be
seperate tables:
table album (
alb_id smallint unsigned auto_increment not null default 0,
title varchar(60),
rec_label smallint unsigned,
primary key (id)
);
table track (
alb_id smallint unsigned not null,
trk tinyint unsigned not null,
genre tinyint unsigned not null default 0,
title varchar(60),
play_len smallint unsigned not null default 180,
artist1 smallint unsigned not null default 0,
artist2 smallint unsigned
unique index idx_at (alb_id,trk),
index idx_art (artist1)
);
Will give you a range of 65535 albums * 255 tracks.
This should make for a simple play_log:
table play_log (
dj_id tinyint unsigned,
playat datetime,
alb_id smallint unsigned,
trk_id tinyint unsigned
);
Regards,
--
Don Read [EMAIL PROTECTED]
-- It's always darkest before the dawn. So if you are going to
steal the neighbor's newspaper, that's the time to do it.
(53kr33t w0rdz: sql table query)
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