In our application, we needed a different type of Mathematical Calculations using any values, variables, parameters and columns.

The RDBMS Product like: SQL Server, PostgreSQL and MySQL supports basic addition, subtraction, multiplication and division.

Also, RDBMS Products have different types of aggregate functions for calculating the SUM and Average.

Various Mathematical operations are available in the Database System, so we don’t require any dependency of Application because we can also tune and authenticate Mathematical operation at the database level.

Below is some sample Mathematical Operations for MySQL.

This sample based on static values. You can use any variable, parameters and column to perform the same kind of Mathematical operation.

SELECT 8 + 8;
-- Ans: 16

SELECT 1 + 2 + 3 + 8 + 88 + 458;
-- Ans: 560

SELECT 2.5 + 4.5; 
-- Ans: 7.0

SELECT .456987 + .000887452;
-- Ans: 0.457874452

SELECT 2.75 + -4.25;
-- Ans: -1.50

SELECT 16 - 8;
-- Ans: 8

SELECT 988 - 808;
-- Ans: 180

SELECT 9.5 - 8.1;
-- Ans: 1.4

SELECT 8.9 - 10.2;
-- Ans: -1.3

SELECT 8 - 4 - 1; 
-- Ans: 3

SELECT .81 - .78;
-- Ans: 0.03

SELECT 10 * 8;
-- Ans: 80

SELECT 2 * -8;
-- Ans: -16

SELECT 3 * 7 * 8;
-- Ans: 168

SELECT 2.40 * 8;
-- Ans: 19.20

SELECT .7 * .8;
-- Ans: 0.56

SELECT 1/2;
-- Ans: 0.5000

SELECT 1.0/2.0;
-- Ans: 0.500000

SELECT 0/10;
-- Ans: 0.0000

SELECT 100/14;
-- Ans: 7.1429

SELECT -78.0/8.5;
-- Ans: -9.17647

SELECT .8/.1;
-- Ans: 8.00000

SELECT ((100 + 100) * .08);
-- Ans: 16.00

SELECT (10 - 8)/20;
-- Ans: 0.1000

SELECT (8.0 - 5.0)/3.0;
-- Ans: 1.00000

SELECT ((50 + 50) - (20 + 20));
-- Ans: 60