Redis: Sorted Set
A combination between a set and a hash
Every element in a sorted set is associated with a floating point value, called the score
127.0.0.1:6379> *ZADD* whisky:rating *4 pulteney-11* 2.0 glenfarclas-12 4.0 fettercairn-23
(integer) 3
127.0.0.1:6379> *ZRANGE* whisky:rating *0 -1 WITHSCORES*
1) "glenfarclas-12"
2) "2"
3) "fettercairn-23"
4) "4"
5) "pulteney-11"
6) "4"
127.0.0.1:6379> *ZRANGEBYSCORE* whisky:rating *3 5*
1) "fettercairn-23"
2) "pulteney-11"