Solved

MySQL: Not empty

Posted on 2011-03-10
2
397 Views
Last Modified: 2012-05-11
How can I specify where a table is not empty?  

A table is empty if it is null or if it contains nothing or if it only contains whitespace.
SELECT * FROM `abc` WHERE `xyz` NOT EMPTY

Open in new window

0
Comment
Question by:hankknight
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 24

Accepted Solution

by:
jimyX earned 500 total points
ID: 35098567
SELECT * FROM `abc` WHERE (select count(*) from `xyz`) > 0
0
 
LVL 16

Author Comment

by:hankknight
ID: 35210308
I found that this also works:
SELECT * FROM `abc` WHERE length(xyz)>0

Open in new window

0

Featured Post

Enroll in May's Course of the Month

May’s Course of the Month is now available! Experts Exchange’s Premium Members and Team Accounts have access to a complimentary course each month as part of their membership—an extra way to increase training and boost professional development.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Foreword In the years since this article was written, numerous hacking attacks have targeted password-protected web sites.  The storage of client passwords has become a subject of much discussion, some of it useful and some of it misguided.  Of cou…
Foreword This is an old article.  Instead of using the MySQL extension that was used in the original code examples, please choose one of the currently supported database extensions instead.  More information is available here: MySQLi / PDO (http://…

739 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question