How is the usage of numeric in MySQL?

In MySQL, NUMERIC is a data type used to store precise numeric data, commonly for representing currency, calculating amounts, or other values that require accurate calculations. The definition of the NUMERIC data type includes two parameters, M and D, which represent the total number of digits and the number of decimal places respectively.

For example, NUMERIC(10, 2) represents a field with a total of 10 digits, with 2 decimal places. This allows for storing data that requires accurate calculations such as prices and amounts.

When creating a table, you can specify the data type of a field as NUMERIC, for example:

CREATE TABLE products (
    id INT AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(50),
    price NUMERIC(10, 2)
);

This creates a table that includes fields for id, name, and price, where the price field has a data type of NUMERIC(10, 2) to store product price information.