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Control Files :The redo and control files logs support the rest of the architecture. Every database must have at least one control file, although you have more than one to guard against replace. The control file records the name of the dataset, the time and date it was prepared, the location of the redoes logs and database, and the synchronization information to confirm that all three groups of files are always in step. Each time you include a new redo log file or database to the database, the information is recorded in the control files.
Define deadlock prevention. Deadlock prevention is a set of methods for ensuring that at least one of the four essential conditions like mutual exclusion, hold and wait, no pre
Differentiate between Key and superkey? Key and superkey - A key a single attribute or a combination of two or more attributes of an entity set in which is used to identify o
Explain the components of Database System in details.
in an organization several projects are undertaken. Each project can employ one or more employees. Each employee can work on one or more projects. Each project is undertaken on the
#question benefits and limitations of data models..
Your OS has a set of queues, each of which is protected by a lock. To enqueue or dequeue an item, a thread must hold the lock associated to the queue. You need to implement an a
PART MARKING: We will only mark TWO of the four questions below but you must submit answers to all four. We will choose the questions we mark randomly and we will supply you with
Define shadow paging. An alternative to log-based crash recovery method is shadow paging. This technique requires fewer disk accesses than do the log-based methods.
What are the function of DBA?
Explanation on Data Sharing?
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