Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Improved Reliability:In a centralised DBMS, a server failure stops the operations of the DBMS. Though, a failure at single site of a DDBMS, or a failure of a communication link creation some sites inaccessible, does not make the whole system inoperable. Distributed DBMSs are designed to continue to function despite such as failures. In particular, if data are replicated in various sites, a transaction requiring a particular data item may find it at various sites. Therefore, the failure of a site does not necessarily imply the shutdown of the system.
The failure of one site must be identified by the system, and appropriate action may be required to recover from the failure. The system has no longer used the services of the failed site. At last, when the failed site recovers or is repaired, mechanisms have to be available to integrate it smoothly back into the system. The recovery from failure in distributed systems is much more difficult than in a centralised system.
Question: One of the tasks a database management system must perform is to ensure that the data is still intact in the face of software and hardware failure. This task is known
What are the object-oriented approaches Software systems which are designed with structured design methodology never support some of desired quality attributes for example reus
What is recursive closure? Why is it not possible to describe this operation in relational algebra? Recursive closure is applied to recursive relationship. An instance of rec
what do you mean by primary key constraint?
why we fregment at all?
Prepare a gantt chart for the stock control project: Scenario Lucas-TVS is the Leader in Auto Electricals in India today with 50 years experience in desig
Define Deadlock recovery measures To recover from deadlock, the cycle in the wait-for-graph should be broken. The common technique of doing this is to rollbac
Database systems have many opposite efforts ?
What is meant by heuristic optimisation?Discuss the major heuristics that are applied during query optimisation.
Which database level is closest to the users? External database level is closest to the users.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd