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g Protocol

Tree locking protocol is used to employ exclusive lock and when the database is in the form of a tree of data items. Tree locking protocol is serializable.

Advantages of Tree Locking Protocol

Unlocking of data item is earlier.Shorter waiting time, increase in concurrency.

Disadvantages of Tree Locking Protocol

Transaction may have to unnecessary lock data items to access its child nodes.Huge number of locks and locking overhead.

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