Database Systems, Data Models & Three-Schema Architecture

15 mins read 0 words Topic 11 of 20

Fundamentals of database management systems, advantages over file-processing systems, ANSI/SPARC three-tier schema architecture, and data independence.

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Database Systems, Data Models & Three-Schema Architecture 1. Introduction: File Processing Systems vs DBMS Before the advent of Database Management Systems (DBMS), organizations stored data in flat operating system files accessed by standalone programs (COBOL, C, Pascal). This file-processing approach led to severe bottlenecks: Data Redundancy & Inconsistency: The same student address was...…

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Introduction to Database Management Systems

Relational Database Model

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SQL Fundamentals

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Database Design and Modeling

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Database Security and Integrity

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Indexing and Query Optimization

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Transaction Management and Concurrency Control

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Database Connectivity and Application Development

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NoSQL Databases

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Big Data and Distributed Databases

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Database Systems, Data Models & Three-Schema Architecture

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Relational Data Model, Keys & Integrity Constraints

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Entity-Relationship (ER) Modeling & Conceptual Design

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Relational Algebra & Query Operations

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Structured Query Language (SQL): DDL, DML & Advanced Queries

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Database Normalization & Normal Forms (1NF, 2NF, 3NF, BCNF)

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Transaction Processing, ACID Properties & Concurrency Anomalies

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Concurrency Control, Two-Phase Locking (2PL) & Deadlocks

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Database Indexing, B+ Trees & Query Optimization

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NoSQL Systems, CAP Theorem & Distributed Databases

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