data-modeling

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ExtJS 4: Models with Associations and Stores

Introduction I\'m facing an application design problem with the Ext.data.Model class in ExtJS. I will try to develop my ideas to a very common online store scenario here, so you can follow me. I woul[详细]

2023-03-18 18:04 分类：问答
ER/Data modelling (Link between inherited types

Would it be possible (or is it illegal for any reason) to have something like this: This is basically an ISA class with a foreign-key relationship to itself.[详细]

2023-03-17 16:42 分类：问答
Model a Q & A site in mongoDB

I need to model a Q & A site like stackoverflow in mongoDB, here are my main issues. I have 2 main objects - Questions and users (just forget the others like answers etc...).[详细]

2023-03-17 11:47 分类：问答
Relational Design: Column Attributes

I have a system that allows a person to select a form type that they want to fill out from a drop down box. From this, the rest of the fields for that particular form are shown, the user fills them ou[详细]

2023-03-16 14:44 分类：问答
Dimensional modelling few questions

I am getting familiar with Dimensional model, so started looking at health claims process.开发者_JAVA百科I am trying to acheive the following:[详细]

2023-03-16 07:45 分类：问答
What is the difference between those terms: "Association" and "Relation"?

In the context of data modeling, what is the difference between 开发者_如何学Cthose terms: \"Association\" and \"Relation\" ?A \"relation\" is the mathematical term for a \"table\".[详细]

2023-03-15 09:17 分类：问答
Most common practice for sharing data and models across Rails applications

I want to share data across two se开发者_JAVA百科parate Rails applications. Each application has the concept of a product. The two applications share common fields (eg. id, name) but each application[详细]

2023-03-14 13:13 分类：问答
Forward engineering data model from visio 2010

I have heard here that this is possible in \"Visio Enterprise Architect\" .. is this correct? if yes, what type o开发者_开发知识库f visio is this? A standalone app like visio 2010?[详细]

2023-03-14 01:26 分类：问答
How to model this with JPA?

I want to model a couple of object relations and I\'m currently not sure about a sm开发者_开发百科art way to do this. Let\'s assume a Record has a OneToMany relationship to different RecordSources. Th[详细]

2023-03-13 04:25 分类：问答
Can Predictive modelling be applied to only one problem or multiple problems

I came across a company who does predcitive modelling and they say 开发者_开发问答 Because our Predictive Models are[详细]

2023-03-12 08:51 分类：问答