Login | Register   
RSS Feed
Download our iPhone app
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: Beginner
Apr 12, 2018



Application Security Testing: An Integral Part of DevOps

How to Check for a NULL Value and an Empty String

You may need to check address fields (for example) for a NULL value or an empty string (the value looks null, but simply contains an empty string - which is still technically a value).

The query below checks for null values, as well as empty strings, then provides a suitable replacement on either occasion.

            ISNULL(NULLIF(TABLE.Address, ''), 'No Address') [Address]
    FROM    [dbo].[TABLE]
Hannes du Preez
Comment and Contribute






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



We have made updates to our Privacy Policy to reflect the implementation of the General Data Protection Regulation.
Thanks for your registration, follow us on our social networks to keep up-to-date