What's the point of “NOT NULL DEFAULT '' ”?

Question

I\'ve seen this on a lot of fields on a DB from a project I\'ve been working on, where a column will be defined not null, but will have an empty string as the default. what\'s t

Answer 1

In addition to what @Piskvor mentioned, this practice is also there so as to prevent some potential NullPointerExceptions in the application logic when populating beans/objects etc. after reading from DB