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Redis Sorted Sets

Redis Sorted Sets are similar to Redis Sets but the first one has the unique feature of values stored. It means every member of a Sorted Set is associated with a score which can be used to take the sorted set ordered, from the smallest to the greatest score.

Example

Redis Sorted Sets 1

Redis Sorted Sets Commands

Following is a list of commands used in sorted sets.

Index Commands Description
1 ZADD key score1 member1 [score2 member2] It is used to add one or more members to a sorted set, or updates its score, if it already exists
2 ZCARD key It is used to get the number of members in a sorted set
3 ZCOUNT key min max It is used to count the members in a sorted set with scores within the given values
4 ZINCRBY key increment member It is used to increment the score of a member in a sorted set
5 ZINTERSTORE destination numkeys key [key ...] It is used to intersect multiple sorted sets and stores the resulting sorted set in a new key
6 ZLEXCOUNT key min max It is used to count the number of members in a sorted set between a given lexicographical range
7 ZRANGE key start stop [WITHSCORES] It is used to return a range of members in a sorted set, by index
8 ZRANGEBYLEX key min max [LIMIT offset count] It is used to return a range of members in a sorted set, by lexicographical range
9 ZRANGEBYSCORE key min max [WITHSCORES] [LIMIT] It is used to return a range of members in a sorted set, by score
10 ZRANK key member It is used to determine the index of a member in a sorted set
11 ZREM key member [member ...] It is used to remove one or more members from a sorted set
12 ZREMRANGEBYLEX key min max It is used to remove all members in a sorted set between the given lexicographical range
13 ZREMRANGEBYRANK key start stop It is used to remove all members in a sorted set within the given indexes
14 ZREMRANGEBYSCORE key min max It is used to remove all members in a sorted set within the given scores
15 ZREVRANGE key start stop [WITHSCORES] It is used to return a range of members in a sorted set, by index, with scores ordered from high to low
16 ZREVRANGEBYSCORE key max min [WITHSCORES] It is used to return a range of members in a sorted set, by score, with scores ordered from high to low
17 ZREVRANK key member It is used to determine the index of a member in a sorted set, with scores ordered from high to low
18 ZSCORE key member It is used to retrieve the score associated with the given member in a sorted set
19 ZUNIONSTORE destination numkeys key [key ...] It is used to add multiple sorted sets and stores the resulting sorted set in a new key
20 ZSCAN key cursor [MATCH pattern] [COUNT count] It is used to incrementally iterates sorted sets elements and associated scores

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Redis Sorted Sets
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