Re: table structure question
| From: | Mihail Bota | Date: | Mon, 29 Dec 2003 21:52:31 +0000 |
| Subject: | Re: table structure question | ||
| References: | 1 | Groups: | php.db |
| Request: | Send a blank email to php-db+get-32211@lists.php.net to get a copy of this message | ||
I would do it a little bit different:
1. I would add ID's for each of the tables.
2. I would split teams in 2 tables; the captain stuff would be in a
separate table (captain_team let's say), simply because I would have
different players as captains in different games. If you keep the
structure as it is now, you'll have a lot of duplication.
So, I would do it like this:
teams
---
IDteam | name | ...
teams_captain
---
IDteam| IDplayer| Game (this could be date format)
players
----
IDplayer |...
Then, if you want to see the players who were captains for a given team,
you can write smth. like:
select distinct p.lname from players p, teams_captain t, teams tt where
p.IDplayer=t.IDplayer and t.IDteam=tt.IDteam and tt.name like 'Real
Madrid'
Check also the normalization forms of a database, which you can find in
any database book, simply because you'll have complications if you record
more than 1 season and some teams can move in different leagues.
Hope this helps.
Mihai
On Mon, 29 Dec 2003, Kirk Babb wrote:
> Hi everyone,
>
> I would like to set up the following two tables inside a db for a soccer
> league, but wanted to run their structure by you guys first. Here it is:
>
> dbname: soccer_stats
> tables: teams, players
>
> teams
> ------
> name | captain | division | paid | pmnt_notes | win | loss | tie | goals_for
> | goals_against
>
> players
> ------
> lname | fname | team_name | dob | address | telephone | email | sex | yellow
> | red | disc_notes | goals_scored | own goals
>
> I've never split the info over multiple tables, but this way made sense to
> me for some reason. I've been thinking, and if, for example, I want to
> (using mysql) pull the captain of a specific player, how would I do that?
> Is this a good table design in the first place? Comments and criticisms are
> welcome! Thanks - Kirk
>
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