Top "Data-modeling" questions

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

What is an "order line"?

I listen a number of podcasts. Often I hear the expression "Order line" in the context of database or business …

data-modeling
A good database modeling tool for PostgreSQL?

PostgreSQL comes with the excellent pgAdmin-tool for managing the database but lacks GUI data-modeling utility? I found this list: http://…

database postgresql data-modeling
What is the difference between Max Cardinality and Min Cardinality?

I am having a hard time understanding what is the difference between the Max and Min cardinalities when trying to …

database data-modeling cardinality
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 …

extjs data-modeling store model-associations
How to do Inheritance Modeling in Relational Databases?

My question is regarding Inheritance modeling in Relational Database Systems. I have canonical data model and in that I have …

mysql database inheritance data-modeling class-table-inheritance
What mysql database tables and relationships would support a Q&A survey with conditional questions?

I'm working on a fairly simple survey system right now. The database schema is going to be simple: a Survey …

sql database-design database-schema erd data-modeling
Database design for a recursive relationship

Consider this case where I'm trying to model a database for a company: Entities: Employees, Managers, Departments. An Employee works …

sql database database-design data-modeling erd
Firestore: Query by item in array of document

I have a document "user" which has a key called "photos". Here is an array of strings being saved, namely …

firebase google-cloud-platform google-cloud-firestore data-modeling
What's the difference between data model and object model?

CWM is data modeling UML is object modeling. Can someone explain the difference that a layman can understand?

data-modeling object-model
What's the difference between Data Modelling and Domain Modelling?

By the way - with reference to data modelling I'm referring to logical or conceptual data models - not physical …

domain-driven-design data-modeling modeling domain-model