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 differance between Primary and secondary storage ?
Computer storage is classified within primary(main) memory and secondary(peripheral) storage.a) Primary storage is commonly RAM; ~10ns access timeb) Secondary storage is commonly hard disk drives; ~10ms access timec) Secondary storage is a lot cheaper than primary, 3¢/Mb vs.$1/Mb.
a) Databases are stored in secondary memory, and large databases are manipulated in secondary storage.b) We required minimising disk accesses while accessing and manipulating databases.
Define physical and logical data independence. How does this architecture help in achieving these? Data independence entails that change in one view must not need a change in t
Explain the concept of Modeling With Objects A model is a conceptual representation of a specification, design or system from a particular point of view. A modelling language
I need help with data warehousing and business intelligence course project about designing a data warehouse for a jewelry company that does not have one
Relational Algebra is a set of basic operations used to influence the data in relational model. These operations allow the user to specify basic retrieval request. The result of re
Define a relation ? Relation - A relations is a named two-dimensional table of data. Mathematically, a relation can be described as a subset of the cartesian product of a lis
Chapter 10a review questions
Let us first look into some of the important features of ER model. Entity relationship model is a high-level conceptual data model. It permits us to define the data invo
OBJECTIVES After going through this unit you should be capable to: Explain the File Based system and its limitations; Explain the structure of DBMS; Explain the
Find out the names of all employees who work for first Bank Corporation from database. SELECT EMPLOYEE_NAME FROM WORKS WHERE COMPANYNAME = ‘First Bank Corporation';
Determine Which is not a consequence of concurrent operations? Ans: Update anomaly.
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