ZCARD
Syntax
ZCARD key
- Available since:
- Redis CE 1.2.0
- Time complexity:
- O(1)
- ACL categories:
@read,@sortedset,@fast,
Returns the sorted set cardinality (number of elements) of the sorted set storedatkey.
Examples
RESP2/RESP3 Reply
Integer reply: the cardinality (number of members) of the sorted set, or 0 if the key doesn't exist.- See also
- BZMPOP
- BZPOPMAX
- BZPOPMIN
- ZADD
- ZCARD
- ZCOUNT
- ZDIFF
- ZDIFFSTORE
- ZINCRBY
- ZINTER
- ZINTERCARD
- ZINTERSTORE
- ZLEXCOUNT
- ZMPOP
- ZMSCORE
- ZPOPMAX
- ZPOPMIN
- ZRANDMEMBER
- ZRANGE
- ZRANGEBYLEX
- ZRANGEBYSCORE
- ZRANGESTORE
- ZRANK
- ZREM
- ZREMRANGEBYLEX
- ZREMRANGEBYRANK
- ZREMRANGEBYSCORE
- ZREVRANGE
- ZREVRANGEBYLEX
- ZREVRANGEBYSCORE
- ZREVRANK
- ZSCAN
- ZSCORE
- ZUNION
- ZUNIONSTORE