Multiple attributes in the entity may be combined to form a composite primary key.
实体中的多个属性可以组合成一个复合的主键。
You can adjust the primary-key creation strategy or even specify a composite primary key.
可以调整主键的生成策略,甚至指定复合主键。
You can also create a primary key class for entities that have composite keys.
还可以为具有组合键的实体创建一个主键类。
You can see that the primary key is indeed a composite made up of the street and city fields.
可以看到,主键实际上是由street和city字段组合而成的。
The key secondary composite outcome was the primary outcome plus hospitalization for unstable angina.
次要复合终点为不稳定性心绞痛附加住院的主要转归。
The key secondary composite outcome was the primary outcome plus hospitalization for unstable angina.
次要复合终点为不稳定性心绞痛附加住院的主要转归。
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