HINCRBY key field increment

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.

Return value

Integer reply: the value at field after the increment operation.


Since the increment argument is signed, both increment and decrement operations can be performed:

redis> HSET myhash field 5 (integer) 1 redis> HINCRBY myhash field 1 (integer) 6 redis> HINCRBY myhash field -1 (integer) 5 redis> HINCRBY myhash field -10 (integer) -5

© 2009–2017 Salvatore Sanfilippo
Licensed under the Creative Commons Attribution-ShareAlike License 4.0.