INCR _key_

INCRBY _key_ _integer_

DECR _key_ _integer_

DECRBY _key_ _integer_

Time complexity: O(1)

Increment or decrement the number stored at key by one. If the key doesnot exist or contains a value of a wrong type, set the key to thevalue of "0" before to perform the increment or decrement operation.

INCRBY and DECRBY work just like INCR and DECR but instead toincrement/decrement by 1 the increment/decrement is integer.

Return value

Integer reply, this commands will reply with the new value of key after the increment or decrement.

See also

• GET