What are some examples of database transactions?

What are some examples of database transactions?

Database transactions are sequences of operations performed as a single logical unit of work. Examples include: 1. Bank transfers, where money is moved from one account to another. 2. Online shopping, where items are added to a cart and the purchase is completed. 3. Booking a flight, where seat selection and payment are processed together.

Can you explain the importance of transactions in databases?

Transactions ensure data integrity and consistency. They follow the ACID properties: Atomicity, Consistency, Isolation, and Durability, which help prevent data corruption and ensure reliable processing.

What happens if a transaction fails?

If a transaction fails, the database will roll back to its previous state, ensuring that no partial changes are saved. This maintains data integrity.

Are there different types of database transactions?

Yes, there are several types, including: 1. Read transactions, which retrieve data. 2. Write transactions, which modify data. 3. Mixed transactions, which involve both reading and writing.