What is SQL transaction management and how does rollback work?

What is SQL transaction management and how does rollback work?

SQL transaction management is a way to ensure data integrity in databases. A rollback is used to revert changes made during a transaction if an error occurs.

Can you explain the difference between commit and rollback?

Sure! A commit saves all changes made during a transaction, while a rollback undoes those changes if something goes wrong.

When should I use rollback in my SQL queries?

You should use rollback when you encounter an error during a transaction, ensuring that your database remains consistent.

Are there any risks associated with using rollback?

Yes, if not used carefully, rollback can lead to data loss if important changes are undone unintentionally.

Can you give me an example of a rollback in SQL?

Certainly! For example, if you start a transaction, insert some data, and then encounter an error, you can use 'ROLLBACK;' to undo the insert.