Quackit Logo
Sponsored Links
$1.99 Domain Names
With every new non-domain purchase thru ZappyHost, you get a domain name for only $1.99.
Create free Flash websites

SQL Distinct

Print Version

Once a table starts getting a lot of data in it, some columns will contain duplicate values. For example, many Individuals share first names and surnames. Most of the time this isn't a problem. But sometimes you will want to find out how many unique values there are in a table. To do this you can use the DISTINCT keyword.

SQL statement

SELECT DISTINCT(FirstName) FROM Individual

Source Table

IndividualIdFirstNameLastNameUserName
1FredFlinstonefreddo
2HomerSimpsonhomey
3HomerBrownnotsofamous
4OzzyOzzbournesabbath
5HomerGainnoplacelike

Result

Using the DISTINCT keyword, all customers with a name of "Homer" are counted as one.

FirstName
Fred
Homer
Ozzy

Enjoy this website?

  1. Add this page to your Favorites
  2. Link to this page (copy/paste into your own website or blog):
  3. Help support Quackit by making a donation
  4. Add this page to your favorite social bookmarks sites:      

Oh, and thank you for supporting Quackit!

FREE Hosting!
With every domain you register with ZappyHost you get FREE hosting.
Need Website Content?
Get unique, quality digital content for your website.
  • 270+ Website Templates
  • 800+ Flash Templates
  • 25,000+ Images, Logos
  • 30,000+ e-Books
  • 15,000+ Scripts
  • 27,000+ Animated GIFs
  • 21,000+ Ringtones
  • ...and much more!
Get your content now!
© Copyright 2000 - 2010 Quackit.com