- Usage:
-
HINCRBY key field increment
- Complexity:
- O(1)
- Since:
- 2.0.0
Increments the number stored at field in the hash stored at key by
increment.
If key does not exist, a new key holding a hash is created.
If field does not exist the value is set to 0 before the operation is
performed.
The range of values supported by HINCRBY is limited to 64 bit signed integers.
Examples
Since the increment argument is signed, both increment and decrement
operations can be performed:
127.0.0.1:6379> HSET myhash field 5
(integer) 1
127.0.0.1:6379> HINCRBY myhash field 1
(integer) 6
127.0.0.1:6379> HINCRBY myhash field -1
(integer) 5
127.0.0.1:6379> HINCRBY myhash field -10
(integer) -5