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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
Describe how you can simplify Operations. To simplify operation, one should use inheritance, where possible to use, to reduce the quantity of distinct operations. Introduce new
The First Normal Form (1NF) Let us first describe 1NF: Definition: A relation (table) is in 1NF if 1. There are no duplicate tuples or rows in the relation. 2.
What is equi join? Equi Join - It generates all the combinations of tuples from two relations which satisfy a join condition along with only equality comparison (=).
Describe Physical Data independence ? Physical Data Independence - It is capacity to modify the internal schema without having to change conceptual schema. Therefore, the exter
PRINCIPLES OF DATABASE 1. State the following terms: a) Database b) Database Management System c) Entity d) Attribute e) Relationship 2. Discuss the Three Level Architecture
What is theta join explain? Theta Join - The theta join operation is an extension to the natural-join operation which permits us to merge selection and a Cartesian
Question 1 Suppose the employee employee id, name, designation, salary, attendance and address of any employee has to be stored in a database. You can store these data in a sequen
real life situations where database management system are most suitable
what is primary key
You are to write a property management database program that allows a real estate agent to view, add, search, and save property listings. The program is to do the following: 1.
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