I was reading this article on BBC. It tells a story of a person named Jenifer Null and how she faces day to day problems while using online databases like booking plane tickets, net banking etc.
I am not well versed in databases and I do not use it very often. When I made a website for learning, the server side form validation used regular expressions. From what I remember it would happily accept the name "Null". I have not tried it though.
Could someone explain the technicalities when this situation would occur? Is the form validation just doing a
string == NULL or something? Even so I do not think
NULL is same as "NULL".