Just wondering why the field is needed
Firstly, you would have to wonder how the database compiler came by the information. Did they ask the people?
If not (eg, it's not from a dating site or similar), then it's most likely to be a computed field, I think. There are other fields in there that could be the basis for computing this (eg applying an age range), so perhaps that's what has been done.
(I'm not saying that there is a genuine formula for this, but that someone could have made one up anyway.)
Biting the hand that feeds IT
