To someone who has experience using inheritance in PostgreSQL: Is it worth using it, or better not to? In which situation you would use it?
I am working on a new project and hoping to use LINQ to SQL for the data access but have com开发者_JAVA技巧e across the following issue.
Here\'s a ugly bit of Javascript it would be nice to find a workaround. Javascript has no classes, and that is a good thing. But it implements fallback between objects in a rather ugly way. The found
Suppose I have class animal and classes cat and dog extending it. I want to do something along the lines of:
This question is built on top of many assumptions. If one assumption is wrong, then the whole thing falls over. I\'m still relatively new to Python and have just entered the curious/exploratory phase.
In my program I have the following class hierarchy: class Base // Base is an abstract class { }; class A : public Base
If you have 3 classes, with arrows going from parent to child classes (i.e. \"A -> B\" means \"B inherits from A\":
Is Object the base class of all objects in Javascript, just like other language such as Java & C#?
I have several classes that extend C and I would need a method that accepts any argument of type C. But in this method I would like to know if开发者_如何学C I\'m dealing with A or B.
I want to build a simple app (probably in MS Access) for a simple small-business database.We have fairly typical entities -- customer, contact, worker, supplier, sub-contractor.These are all variation
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