One-to-many relationship?

if i have a relation like that: 1 - 0..1, it is considered a one-to-many?

the only options that i have i开发者_运维知识库n mysql workbench are:

 1:1, 1:n, n:n...

thanks!

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No, this is a 1:1 (one-to-one) relationship. It's just that there isn't always another one that relates to the first one :)