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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 of DBMS.
3. Write short note on:a) Relational Data Model b) Hierarchical Model
4. Explain characteristics of different types of storage devices.
5. Describe file organization. Discuss several possible ways of organizing records in files.
6. What is second normal form and third normal form.
Winfield is a small city with a population of 22,000 with buses serves three routes in Winfield and neighboring areas. As the city’s IT director, you have been asked to set up an i
What is bucket overflow and how bucket overflow is handled through Over Flow Chaining or Closed Hashing? Ans: Bucket: unit of storage holding records. Bucket is a disk block
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
Lossless-Join Decomposition Let us show an intuitive decomposition of a relation. We require a better basis for deciding decompositions since intuition may not always be r
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Question 1: (a) Planning and management of ICT projects have a very poor record in developing countries. Briefly explain five critical success factors for correct implementa
Explain the Check Clause The CHECK clause is employed to at the end of a CREATE TABLE statement specify table constraints. This is known as table-based constraint because it ap
Describe disk manager and their work? Disk Manager: Responsible for fetching data regulated through file Manager from disk storage within Main memory and deciding what data to
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
What is meant by object identifiers? Object-oriented systems use an object identifier to recognize objects. Object identifiers are unique: that is every object has a single ide
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