Checking for an empty field with MySQL

Question

I\'ve wrote a query to check for users with certain criteria, one being they have an email address.

Our site will allow a user to have or not have an email address.<

Answer 1

If you want to find all records that are not NULL, and either empty or have any number of spaces, this will work:

LIKE '%\ '

Make sure that there's a space after the backslash. More info here: http://dev.mysql.com/doc/refman/5.0/en/string-comparison-functions.html