oracle11g - data type related questions in oracle 11g

Question

What is the difference between oracle number data type and oracle floating data type? I want to create columns for salary and rate, what data type should be more comfortable for those columns.

Answer 1

任何与钱有关的东西都应该存储为 NUMBER 类型，因为它不容易出现 IEEE 类型的舍入错误。NUMBER 类型中的所有算术本质上都是整数，因此 1.5 * 1.5 将等于 2.25，而不是 2.249999999……