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Docs > Redis Commands > H > Hincrby
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
@integer-reply: the value at field
after the increment operation.
@examples
Since the increment
argument is signed, both increment and decrement
operations can be performed:
HSET myhash field 5
HINCRBY myhash field 1
HINCRBY myhash field -1
HINCRBY myhash field -10