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Database Systems

Primary Keys

Understand the role of primary keys in database systems and how they uniquely identify records.
Goal:
Learn how records are uniquely identified.
3Lessons
6Micro-lessons
BeginnerDifficulty
Lesson 1

Introduction to Primary Keys

Learn the basics of primary keys and their importance in databases.
Start2 Micro-lessons

Micro lesson 1
What is a Primary Key?
Micro lesson 2
Importance of Uniqueness
Lesson 2

Designing Primary Keys

Explore how to design effective primary keys for database tables.
Start2 Micro-lessons

Micro lesson 1
Choosing the Right Key
Micro lesson 2
Composite Keys
Lesson 3

Troubleshooting Primary Key Issues

Identify and solve common problems related to primary keys.
Start2 Micro-lessons

Micro lesson 1
Common Mistakes
Micro lesson 2
Fixing Key Conflicts