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Question
(a) Differentiate between the following terms:
(i) Distributed Database v/s Distributed Database management System (ii) Homogeneous Distributed Database v/s Heterogeneous Distributed Database
(b) Explain the following terminologies with regard to Distributed Database.
(i) Fragmentation (ii) Replication (iii) Transparency
(c) In the context of distributed database management systems, explain the following fragmentation rules and support your answer with an appropriate example of a Horizontal Fragmentation:
(i) Completeness (ii) Reconstruction (iii) Disjointness
Multi-list file Organisation Multi-list file organisation is a multi-index linked file organisation. A linked file organisation is a logical organisation where physical orderin
The need for three level architecture The aim of the three level architecture is to divide each user's view of the database from the way the database is physically shown.
Relational and E-R Model There are three types of constraints on relational database that have: DOMAIN CONSTRAINT PRIMARY KEY CONSTRAINT INTEGRITY CONSTRAINT
What Command You Use What Day of the week were you born
Homework chapter 10 no 3
Construct an ER diagram for a hospital along with a set of patients and a set of medical doctors Associate with every patient a log of the several tests and examinations conducted.
What are the various symbols used to draw an E-R diagram (any 3)?
What is a Built-in A notation of identity is built-into the data model or programming language and no user-supplied identifier is needed. This form of identity is used in objec
Give the two reasons for allowing concurrency
Consider an information system designed for an online company which provides IT products and services These include desktops, laptops, networking products, IT books, parts, and
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