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In VS saw this attitude, what does it mean and what is the name?

    1 answer 1

    This is a one-to-many relationship, but it means that the connection field of these tables can be null. Those. Ninja doesn't necessarily have NinjaEquipment.

    In queries for the sample will not be generated Inner Join, and Left Join.

    • And also that 1 Ninja can have a lot of NinjaEquipment - BigTows