data-modeling

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opinions and advice on database structure

I\'m building this tool for classifying data. Basically I will be regularly receiving rows of data in a flat-file that look like this:[详细]

2023-03-06 03:18 分类：问答
Seeking Core Data model design advice

I have the following modeling problem in Core Data. A Student can take Lessons. A Lesson has the following fields:[详细]

2023-03-06 02:51 分类：问答
Right design for MySQL database

I want to build a MySQL database for开发者_运维知识库 storing the ranking of a game every 1h.[详细]

2023-03-05 18:57 分类：问答
Using inheritance to solve a design problem

I need a table that stores items and tracks when an item is... queued marked for shipping shipped marked for return[详细]

2023-03-05 01:16 分类：问答
Azure table storage - pattern for parent-child (self referencing schema)

Using Windows Azure Table Storage (WATS) and trying to update the app to use Azure. I\'ve read many articles, and am not sure on the best approach for this, that is parent to child in a self referenci[详细]

2023-03-04 15:32 分类：问答
Extracting information from millions of simple but inconsistent text files

We have millions of simple txt documents containing various data structures we extracted from pdf, the text is printed line by line so all formatting is lost (because when we tried tools to maintain t[详细]

2023-03-04 12:07 分类：问答
Data model, generic containers, C++

I am writing a new container as an extension of common STL containers stored in AContainer (an abstract class). For this container I want to add new features depending on stored objects (geometric obj[详细]

2023-03-04 04:57 分类：问答
Database Design: how to avoid EAV? [duplicate]

This question already has answers here: Closed 11 years ago. Possible Duplicate: Database Design: to EAV or not to EAV?[详细]

2023-03-03 21:39 分类：问答
one-to-one relationship in database

Suppose that I have a table users, with a PK id_user. I also have an identifying relationship between the table users and th开发者_JS百科e table employer. I can use the PK id_user as foreign key in[详细]

2023-03-03 15:57 分类：问答
Database Querying through a Model

When working with an MVC framework and querying the database from the controller using the model, what is the best pr开发者_运维知识库actice?[详细]

2023-03-02 19:14 分类：问答