Increments the score of a member in a sorted set.
ZINCRBY key increment
member
Increments the score of member in the sorted set stored
at key by increment. If member
does not exist in the sorted set, it is added with
increment as its score (as if its previous score was
0.0). If key does not exist, a new sorted set
with the specified member as its sole member is
created.
An error is returned when key exists but does not hold a
sorted set.
The score value should be the string representation of a
numeric value, and accepts double precision floating point numbers. It
is possible to provide a negative value to decrement the score.
Bulk string reply: the new score of member as a double precision floating point number.
Double reply: the new score of member.
O(log(N)) where N is the number of elements in the sorted set.
@fast @sortedset @write
127.0.0.1:6379> ZADD myzset 1 "one"
(integer) 1
127.0.0.1:6379> ZADD myzset 2 "two"
(integer) 1
127.0.0.1:6379> ZINCRBY myzset 2 "one"
"3"
127.0.0.1:6379> ZRANGE myzset 0 -1 WITHSCORES
1) "two"
2) "2"
3) "one"
4) "3"BZMPOP, BZPOPMAX, BZPOPMIN, ZADD, ZCARD, ZCOUNT, ZDIFF, ZDIFFSTORE, 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.