data-modeling

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Data Modeling: Is it always necessary to use an intersection table?

Consider the following: I have two tables (Customers and Cases) defined as follows: **Customers** CustomerId (PK)[详细]

2023-03-31 01:26 分类：问答
MySQL Data Model to Cassandra Help?

I\'m trying to move a RDBMS model over to Cassandra, and having a hard time creating the schema.Here is my data model:[详细]

2023-03-29 15:51 分类：问答
how to persist a composite pattern with nhibernate

I am looking for examples of how to persist a tree structure, ideally one used as part of a composite patter开发者_如何学运维n. Gabriel Shenker apparently wrote something about this awhile back but th[详细]

2023-03-29 06:59 分类：问答
How to implement has_many :through relationships with Mongoid and mongodb?

Using this modified example from the Rails guides, how does one model a relational \"has_many :through\" association using mongoid?[详细]

2023-03-27 09:36 分类：问答
How do I minimally represent the check state of a check tree?

If i have a tree structure whose nodes can have zero to many children, with each node holding some data value along with a boolean switch, how do i minimally represent the state of this tree for nodes[详细]

2023-03-26 15:06 分类：问答
2 Way Friendship between different models

Ruby on Rails App. I have two kinds of users, Company has_many :employees #sample Employee has_one :company[详细]

2023-03-26 13:05 分类：问答
Database model verification

I开发者_运维百科 am trying to build an app where users will be able to transfer tokens for games between each other.Right now I have this design in mind[详细]

2023-03-26 12:06 分类：问答
A good data model for storing score and history for a game

I am developing a little game (I\'m using Play! framework). In this game, the players answer tec开发者_运维技巧hnical questions, and win points when they answer correctly.[详细]

2023-03-24 07:04 分类：问答
modeling hierarchy/directory in a relational database

I would like to model a hierarchy/directory like what you see below, in a mysql table. You can see below the table schema I was thinking.[详细]

2023-03-23 18:31 分类：问答
PowerDesigner to Doctrine [closed]

Closed. This question is seeking recommendations for books, tools, software libraries, and more. It does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]

2023-03-23 12:39 分类：问答