... Class-defined 已定义类 Table per Class 每个类一张表 Single Table per Class Hierarchy 每个类层次结构一张表 ...
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Table per class hierarchy 一张表 ; 单表继承
Single Table per Class Hierarchy 每个类层次结构一张表
Table per concrete class 每个具体类一张表
One Class per Table 每个类映射为一张表
Inheritance: Annotations — Single table, joined table, and table per class.
继承:标注——单个表、联合表和按类表。
With this approach you create one table per class, the attributes of which are the OID and the attributes that are specific to that class.
使用这种方法,为每个类创建一张表,它的属性是 OID和特定于该类的属性。
Mixing strategies such as "Table per Subclass" embedded in "Table per class Hierarchy" so that you can take advantages of different strategies.
采用混合策略,例如“每个类层次一张表”中嵌入“每个子类一张表”,这样可以利用不同策略的优势。
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