The _____ rule states that only one transaction at a time can own an exclusive lock on the same object.
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Q60: The _ approach to scheduling concurrent transactions
Q61: Database transaction _ restores a database from
Q62: A(n) _ occurs when a transaction executes
Q63: In a heavily used database management system
Q64: What are database checkpoints?
Q66: The DBMS uses the information stored in
Q67: What are the three basic techniques to
Q68: As a rule, a(n) _ must unlock
Q69: What is transaction isolation and why it
Q70: _ ensure that a disk physical failure
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