single table inheritance

常见例句

In single-table inheritance, there is a single database table that contains columns for both base and derived classes.
在单表继承中，一个数据库表同时包含基类和派生类的列。
Provides step-by-step instructions about how to configure entity classes that use single-table inheritance by using the O/R Designer.
提供有关如何使用 O/R 设计器配置使用单表继承的实体类的分步说明。
Inheritance is limited: with ActiveRecord, I'm forced to use a mapping strategy called single table inheritance (see Resources), which is not always optimal.
继承也受到限制：使用 ActiveRecord 时，我被迫使用单表继承映射策略，而该策略并不总是最佳选择。