#sidebar StringCommandsSidebar

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.

INCR commands are limited to 64 bit signed integers.

Return value

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