Diese Lektion gibt es vorerst nur auf Englisch.
Per player, per post, per country
A leaderboard needs a total for each player, not one total for everyone. GROUP BY splits the rows into groups and runs your aggregate once per group.
Diese Lektion gibt es vorerst nur auf Englisch.
A leaderboard needs a total for each player, not one total for everyone. GROUP BY splits the rows into groups and runs your aggregate once per group.