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.
What three major types of actions includes databases? Briefly discuss these The three major types of actions including databases are: (i) Defining: It includes specifyin
Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
Describe Interfaces for the DBA? Interfaces for the DBA - Most database systems holds privileged commands which could be used only through the DBA's staff. These involves com
How many types of users works on database? Users are differentiated through the way they expect to interact along with the system (i) Application programmers-interact with
What is D command work in the respect of QBE? D: It is the command inside QBE to delete tuple(s) from the relation.
Question: In relation to distributed database answer the following questions: (i) Give a brief definition of distributed database. Support your answer with an appropriate di
Explain pipelining. Ans: In order to describe pipelining in simple terms, think of it as breaking down processor functions into smaller and smaller parts. For instance,
How do you find the final model after iterative analysis? Why is iterative analysis of any of the problem needed? The final model serves as the base for system architectur
Attributes that are directly kept in the data base. For example, 'Birth date' attribute of a person. Derived Attributes that are not stored directly but can be derived
. Ashutosh Dubey who is the director of Gyan Gurukul want a three-level schema architecture for the Gyan Gurukul Company that provide better security also design a data abstraction
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: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd