How is rollback used in MySQL?

In MySQL, the ROLLBACK statement is used to undo all operations in the current transaction, returning the database to its state before the transaction started. The ROLLBACK statement is used when there is an error or when you do not want to commit the current transaction. The syntax is as follows:

ROLLBACK;

It is important to note that the ROLLBACK statement can only be used when using transactions. Without starting a transaction with BEGIN or START TRANSACTION, the ROLLBACK statement cannot be used. The ROLLBACK statement is typically used in conjunction with the COMMIT statement, where COMMIT is used to finalize the operations in a transaction, while ROLLBACK is used to undo the operations in a transaction.