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+ +IncrCommand: Contents
  INCR _key_
  INCRBY _key_ _integer_
  DECR _key_ _integer_
  DECRBY _key_ _integer_
    Return value +
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IncrCommand

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+ #sidebar StringCommandsSidebar

INCR _key_

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INCRBY _key_ _integer_

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DECR _key_ _integer_

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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.
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INCRBY and DECRBY work just like INCR and DECR but instead toincrement/decrement by 1 the increment/decrement is integer.
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INCR commands are limited to 64 bit signed integers.
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Return value

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