relational model

Xiaokun's Architecture Exploration Notes

Mar 29, 2025 · Databases

Exploring Data Models: From Hierarchical to Graph and Schema-on-Read/Write

This article examines the evolution of data models—from conceptual, logical, and physical layers to hierarchical, network, relational, document, and graph structures—explaining their characteristics, implementation examples, and the contrasting schema‑on‑read versus schema‑on‑write approaches for modern data storage systems.

Data Modelingdatabasesgraph database

0 likes · 10 min read

Exploring Data Models: From Hierarchical to Graph and Schema-on-Read/Write

IT Architects Alliance

Jan 13, 2023 · Databases

Database Design Fundamentals: Key Concepts, ER Diagrams, and Normal Forms

This article explains fundamental database design concepts, including candidate and primary keys, attributes, relations, ER diagram components, and detailed descriptions of the first, second, third, and BC normal forms with examples and how to resolve insertion, deletion, update, and redundancy anomalies.

Data IntegrityDatabase DesignER diagram

0 likes · 9 min read

Database Design Fundamentals: Key Concepts, ER Diagrams, and Normal Forms

Selected Java Interview Questions

Nov 11, 2020 · Databases

Understanding the Relational Model and SQL Operations: A Comprehensive Guide

This article provides a comprehensive overview of the relational model and SQL, covering fundamental concepts, set‑based operations such as SELECT, WHERE, GROUP BY, UNION, and various JOIN types, along with practical code examples and explanations of integrity constraints and DML statements.

QuerySQLdata-manipulation

0 likes · 12 min read

Understanding the Relational Model and SQL Operations: A Comprehensive Guide

Architect

Nov 30, 2015 · Databases

A Historical Overview of Database Models: From Hierarchical to Relational and Beyond

This article traces the evolution of database models—from early hierarchical and network structures through the relational revolution and entity‑relationship diagrams to modern distributed and multi‑tenant designs—highlighting key concepts, technical challenges, and the theoretical foundations that shaped today’s data storage systems.

Data ModelingHierarchical Modeldatabase

0 likes · 27 min read

A Historical Overview of Database Models: From Hierarchical to Relational and Beyond