I have no problem with converting ER to SQL tables, but I don\'t know how can I convert EER to SQL tables?
In a simple inheritance tree, an abstract su开发者_如何学Cperclass has two subclasses. The subclasses both store a key-value pair, butbut one will be holding a type Encrypted String, and the other on
I am experimenting with Hibernate to gain experience. I created a class Person with two subclasses: Student and Worker:
My understanding may be wrong, but I thought once you applied the correct attributes the DataContractSerializer would render fully-qualified instances back to the caller.
In PHP, is it possible to have multiple inheritance (by the nature of the PHP, not writting modification code)?
Is it OK to derive an abstract class from a non-abstract class or is there something wrong with this approach?
I have -- what I think -- is a simple question.Here\'s my code: class开发者_如何转开发 Fruit < ActiveRecord::Base
What is the reason for the following code that does not let me to create object. class base { public: void foo()
I think I\'m running into an inheritance conceptual wall with my Java arrays. I\'m kind of new to Java so please tell me if I have things upside down. In essence, I want to do three things:
I have implemented inheritance for two parent classes called Table and Field. Each parent class has several child classes. In the Table parent class, I created a method that expects parameter List(Of
加载中,请稍侯......