Tagged Questions

Data modeling questions refer to the techniques used to gather and analyze data requirements needed to support data operations in programs and systems.

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0answers
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Modeling data with relationships in elasticsearch

Previously, I asked about many-to-many relationships here: Many to many relationships in elasticsearch However, the solution I have arrived in that question no longer applies to this new problem I am ...
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4answers
96 views

Modelling an equivalent of database NULL in RDF

I would like to know if there is a standard or generally accepted way of representing an equivalent of NULL used in databases for RDF data. More specifically, I'm interested in a way to distinguish ...
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1answer
37 views

Novel / Book Object Oriented Design Approach

I am creating an object oriented representation of a novel or book. I am looking for design patterns or advice in terms of what to make an object, and what to make an attribute of another object. ...
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0answers
9 views

How to model SO's Questi0n/Tag relationship in DynamoDB with respect to Uniform Workload?

Background I'm new to DynamoDB/NoSQL. I've been trying to re-learn modeling patterns. To that end, I've been trying to model various examples. I got stuck on modeling a relationship similar to SO's ...
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0answers
20 views

Cassandra data modeling for querying over different columns

If I have a table CREATE TABLE MyTable ( a int, b int, c int, d int, PRIMARY KEY (?) -- what should I use ? ) I want to query it in 3 different ways: SELECT * FROM MyTable ...
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0answers
48 views

Interesting!! What data model should I use? [closed]

I am creating an educational database. I would like to link concepts together in a way that is nearly analogous to the way elements link to form molecules. First, we would create a table of ...
0
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1answer
43 views

Dynamic Data inside MongoDB

I'm making dynamic data storage, which it was in relational data base as: form -> field form -> form_data field -> field_data form_data -> filed_data and field data contains field_id, ...
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0answers
10 views

group membership data modeling: separation of concerns

When we want to store membership information, the following questions come to mind: Should the membership be a concern of the group, the member or neither? In other words, I see three possible ...
2
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1answer
62 views

Database design decisions

I trying to create an efficient and scalable data model for an application that I am writing. I am coming to a common problem as far as the design goes, the example listed below exemplifies my problem ...
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0answers
32 views

How do I model a fact with start/end dates to relate to a daily measure?

So I have a Sales Cube with Sales By Item By Day. I want to bring in Bookings/Orders and compare those to the sales to see if we are booking the right numbers. The bookings fact is a single record ...
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0answers
20 views

Mapping a hierarchy into a relational database model

I am currently diving a bit deeper into database modeling. I have a very simple hierarchy as the following one: Company -> Department -> Team -> Employee What I am asking myself is the following: I ...
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0answers
21 views

Where and how to store my weird datamart [migrated]

I could really use some help here. Here's my situation. I'm building a datamart in SQL Server 2005, which will furnish a single report (for now). We have 26 clients (medical organizations) that ...
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0answers
20 views

UML or DataBase Design for mysql DB [closed]

I seriously have no idea about UML or Database Model related stuff. I just want to link tables from MYSQL so that it gives some idea about the functional concept. I was surfing and I found out ArgoUML ...
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0answers
32 views

Is there a way to auto-generate a data model with MVVM support and sample data for WinRT/Win8 projects

So, the application templates for Metro/WinRT apps ship with a sample data model with sample data. However, but for the most basic apps, they cannot be used as is. Is there a tool available that ...
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0answers
18 views

Android datamodel with patientdata

I've started developing an app for an examination at our department at the Hospital where I work. I would like to utilize some of the functions that a ContentProvider gives me, but after I started ...

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