🔑 Database Keys: Superkey, Candidate Key, Primary Key, Foreign Key | 🚀 Includes Problems for Information Processing Engineer Exam
Explore everything about Keys, a core concept in databases. This guide easily explains the characteristics of keys (uniqueness and minimality), the concepts and relationships of Superkeys, Candidate Keys, Primary Keys, Alternate Keys, and Foreign Keys with examples, and concludes with practice questions for the Information Processing Engineer certification exam.
Read in about 3 min readPublished: 2025-07-12
Information Processing EngineerDatabaseDBKeyPrimary KeyForeign Key