MySQL matching 2 out of 5 fields

Question

In MySQL I\'m trying to select any row that matches at least 2 fields of the provided data

Eg. I have been given firstName, lastName, dob, website, email and I want

Answer 1

You could count up the matching expressions. MySQL returns 1 for true and 0 for false.

WHERE (FirstName = ?) + (LastName = ?) + (... = ?) > 2

You can also order using this as well. You will want to sort descending to ensure that the higher matches appear first.

ORDER BY ((FirstName = ?) + (LastName = ?) + (... = ?)) DESC