このレッスンは、現在英語のみです。
Order and speed
A leaderboard needs the highest scores first, ten at a time, and it needs them fast even with millions of players. sort and limit take care of the order; indexes take care of the speed.
このレッスンは、現在英語のみです。
A leaderboard needs the highest scores first, ten at a time, and it needs them fast even with millions of players. sort and limit take care of the order; indexes take care of the speed.