Question

What is the purpose of the "rollback" operation in a

Itundoesallthechangesmadeinthetransactionandrestoresthedatabasetoitspreviousstate

transaction?

A It permanently saves the changes made in the transaction to the database.

B It undoes all the changes made in the transaction and restores the database to its previous state.

C It releases any locks acquired by the transaction and allows other transactions to access the data.

D It checks the consistency of the data in the transaction before making it permanent.

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