What is a database transaction rollback?
A database transaction rollback is a process that undoes changes made during a transaction if an error occurs.
When would I need to use a rollback?
You would use a rollback if a transaction fails or if you want to revert to a previous state to maintain data integrity.
Can you give me an example of a situation where a rollback is necessary?
Sure! If you're transferring money between accounts and the system crashes after deducting from one account but before adding to the other, a rollback would restore the original balances.
How does a rollback affect the database performance?
While rollbacks can temporarily affect performance due to additional processing, they are crucial for maintaining data consistency and integrity.
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