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!
Explain the shadow paging recovery technique.
Ans: Shadow paging is a method used to acquire atomic and durable transactions, and provides the capability to manipulate pages in a database. Throughout a transaction, the pages influenced by the transaction are copied from the database file into a workspace, like volatile memory, and modified in that workspace. While a transaction is committed, all of the pages that were altered by the transaction are written from the workspace to not used pages in the database file.
Throughout execution of the transaction, the state of the database exposed to the user is that where the database existed prior to the transaction, as the database file still consist of the original versions of the modified pages, like they existed before being copied into the workspace. If a user accesses the database previous to the transaction is complete, or on the recovery of a failure, it will come out as though the transaction has not occurred.
Illustrate the view of software architecture A model is a semantically closed abstraction of system composes of elements. It can be visualized using any of the following five v
What is a super key? A super key is a set of one or more attributes that collectively permits us to recognize uniquely an entity in the entity set.
what is database management system? & why it is required?
Whst is logical schema ? Logical schema is the entire database.
I want an iPad app that is a simple 1 page form to complete with text. The Objective is to allow a few dozen people of the same organization (they're all on iPad) to open the app,
1.Suppose you are given a dataset that consists of a random sample of tasters, on which the following variables were obtained: (y) Zpref = taste preference for green beans store
a publishing company produce scientific books on various subjects. the books are written by authors who specialize in one particular subject. the company employs editors who, not n
We need help in Booking System for Golf Business Development of a web based booking system which permits clients to book golf lessons with the following features- a) 4 user p
What are the properties in a relation ? In a relation Ordering of rows is immaterial and No two rows are identical.
The State of NewYork certifies firefighters throughout state and keep track all of them, as well as of the state’s fire departments. Each fire department has unique department numb
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