Talk:One-to-one (data model)

Is country <-> capital really a good example of one to one?
At one point Bolivia had two capitals. Also couldn't a country exist without one? Datdo (talk) 20:47, 19 February 2017 (UTC)
 * I think this example is a general rule, your given cases are deviations or exceptions from a rule. Think also about first name and last name, many people have only those two, but there are also people that have more than one first/last name.Zygimantus (talk) 09:46, 6 May 2019 (UTC)

What's the difference between one to one and a property?
If the relationship is truly one to one and one can't exist without the other, shouldn't it just be considered a property? Datdo (talk) 20:47, 19 February 2017 (UTC)