database - How much range Oracle Number(18) can store? -


i looking @ documentation number type in oracle db can store range 10 raise -130 10 raise 126.

was wondering how many positive numbers field number(18) can store?

integer numbers 18 digits (integers between -10^18+1 , 10^18-1)

according oracle documentation, number datatype stores fixed , floating-point numbers. optionally, can specify precision (total number of digits) , scale (number of digits right of decimal point):

number (precision, scale)

if no scale specified, scale zero.

in case, number(18), specified precision of 18 digits , did not specify scale 0 used (no numbers after decimal point).


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