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

An empty field can be either an empty string or a NULL.

To handle both, use:

email > ''

which can benefit from the range access if you have lots of empty email record (both types) in your table.