single table inheritance

常見例句

In single-table inheritance, there is a single database table that contains columns for both base and derived classes.
在單表繼承中，一個(gè)數(shù)據(jù)庫表同時(shí)包含基類和派生類的列。
Provides step-by-step instructions about how to configure entity classes that use single-table inheritance by using the O/R Designer.
提供有關(guān)如何使用 O/R 設(shè)計(jì)器配置使用單表繼承的實(shí)躰類的分步說明。
Inheritance is limited: with ActiveRecord, I'm forced to use a mapping strategy called single table inheritance (see Resources), which is not always optimal.
繼承也受到限制：使用 ActiveRecord 時(shí)，我被迫使用單表繼承映射策略，而該策略竝不縂是最佳選擇。