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Chapter 9: Transactions

9-1

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Transactions

A transaction is a unit of work that is performed against a database. Transactions are reliable, consistent, and isolated.

BEGIN TRANSACTION: Starts a new transaction.
COMMIT: Saves all changes made during the transaction.
ROLLBACK: Undoes all changes made during the transaction.

Task: Start a transaction, update Alice's balance to 1000, and then commit the change.

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