How Do I Store Users' Scores

I am unsure how to phrase this, but what if I wanted a record of the total amount of my users’ scores (all scores) for the day? Say if I had 100 users and I wanted to know their total scores over a 24 hour period (say, in total, they scored 2,306 between all 100 of them for that period of time), how would I go about doing this? Is this something outside of Unity, maybe using mySQL or some other language than JavaScript or C#?

This might be enough: