MySQL: Sets and Such

[Adrian Schneider]

I know you can use sets to store a set of data, but I was told using a regular text field would work better, because you get more than 64 members.

That being said, I have a few questions based on it.

Is it possible to expand a long list of numbers like 1,4,5,2,3,4,2,4234,2342,34234,262,62 into seperate numbers :

1
4
5
2
3
4
2 (just be able to differentiate them)
then run a query for each one (1 query, preferably), so each one would represent something like a userid.

Another problem I'm thinking will come up, will be table structure.

Each 'player' (table for players) will need to have 3 different 'scores' for each 'game'. (table for games) How would I set this kind of table relationship up?

Thanks.