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Introduction to Data Models

Data Modeling

6 Lessons

Examine data models, schemas, three-schema architecture, data independence, and DBMS classification.

Schemas and Instances

The Three-Schema Architecture

Data Independence

Classification of Database Management Systems

Intro to Entity-Relationship Model

Entity-Relationship Data Model

13 Lessons

Grasp the fundamentals of the Entity-Relationship model, its components, and practical applications.

Entities, Entity Sets and Entity Types

Attributes

Keys

Relationships, Relationship Sets and Relationship Types

Degrees of Relationship Types

Binary Relationship Type Constraints

Attributes of Relationship Types

Weak Entity Types

Exercise 1

Solution to Exercise 1

Exercise 2

Solution to Exercise 2

The Relational Data Model

7 Lessons

Dig into the relational data model, keys, integrity constraints, schemas, and fundamental operations.

Relational Model Concepts

Properties of a Table

Introduction to Database Keys

Integrity Rules and Constraints

Relational Database Schemas

Common Relational Database Operations

Intro to Functional Dependencies

Functional Dependencies

4 Lessons

Simplify complex topics in functional dependencies to enhance database design and normalization.

Rules of Functional Dependencies

Dependency Diagrams

Normalization

10 Lessons

Master the steps to normalize database tables by achieving different normal forms, ensuring efficient design.

What Is Normalization?

First Normal Form

Second Normal Form

Third Normal Form

Boyce-Codd Normal Form

Exercise 1

Solution to Exercise 1

Exercise 2

Solution to Exercise 2

Structured Query Language (SQL)

Structured Query Language

24 Lessons

Learn how to use SQL for data management, including queries, joins, constraints, and aggregate functions.

SQL Data Types and Operators

SQL Constraints

CREATE, DROP, and USE Databases

CREATE, DROP, and INSERT Table

The SELECT Clause

The WHERE Clause

The AND & OR Clauses

Aggregate Functions in SQL

Solution to Exercise 1

Exercise 2

Solution to Exercise 2

Exercise 3

Solution to Exercise 3

Exercise 4

Solution to Exercise 4

Conclusion

1 Lessons

Discover the logic behind foundational database design concepts and future learning pathways.

Where to Go from Here

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