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+ HincrbyCommand
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+ HINCRBY _key_ _field_ _value_ (Redis >
1.3.10)= +Time complexity: O(1)Increment the number stored at field in the hash at key by value. If key does not exist, a new key holding a hash is created. If field does not exist or holds a string, the value is set to 0 before applying the operation.+
The range of values supported by HINCRBY is limited to 64 bit signed integers.
Examples
+Since the value argument is signed you can use this command to perform both increments and decrements:+HINCRBY key field 1 (increment by one) +HINCRBY key field -1 (decrement by one, just like the DECR command) +HINCRBY key field -10 (decrement by 10) ++