They come in thinking their relationship is an outside entity that can be fixed.
他们觉得婚姻关系是一件他们可以修护的实体。
Metamodels are relatively easy to understand; they are similar to an entity-relationship model.
元模型相对容易理解；它们与实体关系模型非常相似。
How to create many-to-many relationship on the same entity?
如何创建一对多关系的许多实体？
Gets the list of all the key members for the current entity or relationship type.
获取当前实体或关系类型的所有键成员的列表。
Gets the list of all the key members for the current entity or relationship type.
获取当前实体或关系类型的所有键成员的列表。
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