Скачать или смотреть 7. Database Keys Explained | Super, Candidate, Primary, Foreign, Composite & More

Welcome to the Database Management Systems (DBMS)

In this lecture, you will learn everything about Keys in RDBMS, including:

✔ Super Key (SK) – What it is and examples
✔ Candidate Key (CK) – Minimal super key concept
✔ Primary Key (PK) – Uniqueness and constraints
✔ Foreign Key (FK) – Creating relationships between tables
✔ Secondary Key – Filtering and searching data
✔ Composite & Compound Keys – Multiple attributes as keys
✔ Surrogate / Artificial Keys – Auto-generated keys
✔ Natural Keys – Real-world meaningful keys

What you’ll gain from this lecture:
✔ Clear understanding of key concepts in relational databases
✔ Practical examples for each key type
✔ Insights on why keys are crucial for database design

📌 Watch till the end for examples and pro tips!
📚 Ideal for: CS students, DBMS learners, and anyone preparing for exams or interviews.

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