A) Cannot be repeated
B) Auto number is the example of primary key
C) Uniquely identifies each record
D) All of these
🧠 Explanation:
A primary key in databases uniquely identifies records, ensuring data integrity. For tech students, this highlights database management, making it a key topic for studying data organization, database systems, and digital literacy. Keys prevent duplication. Understanding this ensures effective database design. It’s essential for analyzing database operations, IT, and data science. Studying primary keys offers insights into how databases maintain accuracy, crucial for computer science, IT, and data management.
