If the database has been destroyed, you can use a rollback to recover the database to a valid state by undoing problem transactions.
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Q4: In updating and retrieving data, users need
Q5: In order to accomplish serial processing of
Q6: You can improve the performance of the
Q7: You can minimize the occurrence of deadlocks
Q8: Authentication refers to techniques for decrypting data
Q10: Encryption converts the data in a database
Q11: When the DBMS locks more rows and
Q12: The DBMS must successfully complete all transaction
Q13: DBMSs must manage multiple copies of the
Q14: In two-phase locking, the second phase is
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