Hi,
I got a table with standard userdata (email, address). I want
to be able to provide additional fields (like age, gender etc).
Generally I have about 8 standard fields and up to 30 optional
fields which may vary. Say something like this:
Customer A wants its users to provide email, address
As usual, there are several different approaches, each with different
advantages and disadvantages.
The simplest approach is just to put all the optional fields in the main
table, and each user can decide how many of them they can be bothered to
fill in. The disadvantages here are that there is
