Many-to-many entity relationships exist when one entity can be related to more than one other entity, and those entities can be related to multiple entities of the same type as the original entity.

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In many-to-many entity relationships, one entity can be related to multiple entities of the same type, and those entities can also be related to multiple entities of the original entity's type. This results in a complex web of relationships between the entities.

Many-To-Many Entity Relationships Exist When One Entity Can Be Related