Sorted-Set

Ascending ranks 0,1,2 contain ada at 10, ben at 20, and cy at 20. Equal-length bars mark the tie. REV yields cy, ben, ada.

A sorted set keeps members ordered by score

A Redis sorted set stores unique byte-string members, each associated with a numeric score. Scores determine order; they need not be unique. This supports leaderboards and time-based indexes, but it does not make score values into automatic expiration deadlines. Model membership, ranking, and cleanup as distinct operations with explicit boundaries. ...