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SQL Mathematical Functions

Use SQL  mathematical functions to perform business and engineering calculations.  I’ll cover the commonly used functions, as you won’t many of them in day-to-day operations.

If you’re new to SQL and want to get to know more about SQL Function right now, then read Introduction to SQL Server Built-In Functions.

All the examples for this lesson are based on Microsoft SQL Server Management Studio and the AdventureWorks2012 database.  Get a head start learning SQL.  Download my free guide Getting Started Using SQL Server.

Introduction to SQL Server’s Mathematical Functions

There are many SQL mathematical functions for you to use. I categorize them as:

  • Scientific and Trig Functions
  • Rounding Functions
  • Signs
  • Random Numbers

The SQL MSDN page is a great reference.   If you want to dig deep into functions, it is your go to place.

Rather than reiterate that material, let’s focus on the functions commonly used in business.

I put together a table of functions.  It is color coded.  The color code corresponds to the likely hood you’ll used a particular function within business: Green are most likely used, and red less so.

OK – SpaceX will use some of the red ones, but hey, they’re rocket scientists!

This isn’t a strict scale, and all functions are awesome (I’m an engineer and love math), but I wanted a way to help you winnow down the field to those most relevant.

Here is my attempt:

Common SQL Mathematical Functions

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