How big can a 64bit signed integer be?

Question

In redis,

The range of values supported by HINCRBY is limited to 64 bit signed integers.

And I\'d like to know how big can t

Answer 1

    Formula   

    2^(n-1) is the formula of the maximum value of a Bigint data type.

    In the preceding formula N is the size of the data type. The ^ operator calculates the power of the value.

    Now determine the value of N in Bit:

Select (max_length * 8) as 'Bit(s)' from sys.types Where name = 'BIGInt'
=64 Bits

Range:: -9223372036854775808 to 9223372036854775807