What are rollback and commit in databases?

What are rollback and commit in databases?

Rollback and commit are two essential operations in database management. A commit saves all changes made during a transaction, while a rollback undoes those changes if something goes wrong.

Can you give me an example of when to use rollback?

Sure! If you're transferring money between accounts and an error occurs, you would use rollback to revert the transaction to ensure data integrity.

What happens if I forget to commit after making changes?

If you forget to commit, all your changes will be lost once the session ends or if a rollback is triggered. It's crucial to commit to save your work.

Are there any risks associated with using rollback?

Yes, excessive use of rollback can lead to performance issues, especially in high-transaction environments. It's important to use it judiciously.