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Lecture notes

Mastering Modern Databases: From History to Architecture & Data Models

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“Mastering Modern Databases: From History to Architecture & Data Models” is a comprehensive and well-structured guide that introduces students to the foundational principles and architecture of database systems. Designed for university-level learners and IT enthusiasts, this two-part lecture presentation bridges theoretical concepts with real-world database applications. Week 3: Database Architecture, Concepts & Models Building upon the foundational knowledge, this section dives deeper into the structural and architectural components of modern databases. It introduces: Client-server architecture models: Two-tier architecture: Simplicity and client-server interaction Three-tier architecture: Scalability and application layering Database system concepts, including: Schemas (internal, conceptual, external) Instances Data dictionaries Data models and their classifications: Conceptual (e.g., Entity-Relationship models) Logical (e.g., relational, hierarchical, network) Physical (storage-level) Relational data model fundamentals: Tables, rows (tuples), columns (attributes) Types of keys (primary, foreign, composite, candidate, etc.) Types of relationships (1:1, 1:M, M:M) Types of database systems: Centralized vs. Distributed Single-user (personal) vs. Multi-user (organizational) Homogeneous vs. Heterogeneous distribution Perfect For: Students studying Database Management Systems (DBMS) Learners preparing for exams or practical lab sessions Anyone seeking a clear, structured intro to database theory Whether you're new to databases or reviewing for a test, this resource simplifies complex concepts and gives you a solid grounding in both the theoretical framework and practical relevance of modern database systems.

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Uploaded on
April 14, 2025
Number of pages
41
Written in
2024/2025
Type
Lecture notes
Professor(s)
Chivuno-kuria, shilumbe
Contains
Database fundamentals

Subjects

Content preview

Faculty of Computing and Informatics

Week 3
Database System Concepts & Architecture

,RECAP

,RECAP

In the previous lesson we discussed:
History of database approach
Characteristics of database approach
Database Management System

, OBJECTIVES

At the end of this lesson, students should be able to
Client server architecture
Types of database systems
Database system concepts
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