Redis Zincrby Command
The Redis Zincrby command adds the increment to the score of the specified member in the sorted set.
You can pass a negative increment to subtract the corresponding value from the score. For example, ZINCRBY key -5 member subtracts 5 from the score of member.
When the key does not exist, or the member is not a member of the key, ZINCRBY key increment member is equivalent to ZADD key increment member.
When the key is not of a sorted set type, an error is returned.
Score values can be integers or double-precision floating-point numbers.
Syntax
The basic syntax of the redis Zincrby command is as follows:
redis 127.0.0.1:6379> ZINCRBY key increment member
Available Versions
>= 1.2.0
Return Value
The new score value of the member, represented as a string.
Examples
redis> ZADD myzset 1 "one" (integer) 1 redis> ZADD myzset 2 "two" (integer) 1 redis> ZINCRBY myzset 2 "one" "3" redis> ZRANGE myzset 0 -1 WITHSCORES 1) "two" 2) "2" 3) "one" 4) "3" redis>
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