INCRBY

Increments the integer value stored at key by increment.

Syntax

INCRBY key increment

If the key doesn’t exist, it is initialized to 0 before performing the operation. The value must be parsable as an integer or an error will be returned.

Example

INCRBY key increment

Return value: Integer reply - the value after incrementation

Notes

• Works only with string values that can be represented as integers
• If the key contains a value of the wrong type or contains a string that can’t be represented as integer, an error is returned
• The maximum value of a signed 64-bit integer is 9223372036854775807