A key that consists of more than one attribute to uniquely identify rows in a table is called a what? MCQ with Answer and Explanation

Explanation:
An Exclusive Lock (X-lock) blocks all other locks, ensuring that only the transaction holding the lock can modify or read the protected resource.

Explanation:
Data refers to raw, unorganized, and unprocessed facts, figures, or symbols that do not convey a specific meaning on their own. When data is processed and organized, it becomes information.

Explanation:
ACID stands for Atomicity, Consistency, Isolation, and Durability. Durability ensures that once a transaction commits, its changes survive system failures.