Query data every time or store values in table?

Question

I have a table of players with a field called scores . Players gain different scores at different games. Every few moments, I want to know total score gained by a certain player until then.

Note that I want to do this action frequently.

The question is, which way should I choose?
1) Define a field in my users table as player_score and update it after each game finishes.
2) Every time I want to calculate total score of a player, query on all of the games and sum up the scores gained until now.
Thanks for your help :)

Answer 1

Depends on how much registrers you have on table games. If you have too many records select will take longer.