dcsimg
LinkedIn
Google+
Twitter
RSS Feed
Download our iPhone app
TODAY'S HEADLINES  |   ARTICLE ARCHIVE  |   FORUMS  |   TIP BANK
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.


Tip of the Day
Language: SQL
Expertise: Intermediate
Jan 27, 2004

WEBINAR:

On-Demand

Building the Right Environment to Support AI, Machine Learning and Deep Learning


Dynamically Create a Sortable Column

Sometimes you need your resultset sorted a particular way and using the primary key doesn't accomplish what you need. One way to get around this is to create a sortable column dynamically in your query using the CASE function.

SELECT name, title, priority =
(CASE title
when 'President' then 1 when 'Vice President' then 2 when
'Secretary' then 3
when 'Treasurer' then 4
end)
FROM executive
ORDER BY priority
In this example, I give each title a priority and sort by it. This could have been accomplished using a second table and joining to it but why do that if you don't need to?
Ian Lane
 
Comment and Contribute

 

 

 

 

 


(Maximum characters: 1200). You have 1200 characters left.

 

 

Sitemap
Thanks for your registration, follow us on our social networks to keep up-to-date