1. Number can store integers and non-integers. When storing non-integer numbers, the number of significant digits is called the precision, and the fractional part to the right is called the scale (number of decimal places).
For example: the number 29.1963 has a precision of 6 and a scale of 4. The maximum precision is 38, and the data shows that the maximum scale can be 127. I also created fields other than number(38,127) in my local test, but I have not been able to successfully insert numbers.
2. Create a table
create table T_TEST
(
ID VARCHAR2(32) not null,
TEST_VARCHAR2 VARCHAR2(4000),
USERNAME VARCHAR2(6),
TEST_NUMBER NUMBER(38,17)
)
3. Insert 38-17, 21 integers and 17 decimals
insert into t_test
(id, test_number)
values('1',111111111111111111111.1111111111111111111111111111);
