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Question :
Object-Oriented Database (OODM) is defined as a logical data model that captures the semantics of objects supported in object-oriented programming. An Object-Oriented Database or OODB is defined as a persistent and sharable collection of objects defined by an OODM.
(i) OODBMSs were developed due to some of the inadequacies of the existing database technology. One of the inadequacies refers as Impedance mismatch problem. Explain what is meant by impedance mismatch, in the context of relational database system.
(ii) Give example of Four Advanced Database Applications and discuss their general characteristics. Explain why these applications are not suitable for a relational database.
(iii) Define each of the following concepts in the context of an object-oriented data model:
a. Abstraction. b. Objects and attributes. c. Methods and messages. d. Classes, subclasses and superclasses.
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object oriented database
Mention the type of constraints we can specify in the CREATE command of DDL. The type of constraints that can be specified are as follows:- PRIMARY KEY, NOT NULL, UNIQUE, FOR
Assignment #1 Data Management The questions on this exam are based on the Baxter Aviation case scenario. 1. (5 points) The systems analyst proposes the following two relationshi
Which is the properties of entities? Attributes is the properties of entities.
Describe Participation Constraints? Participation Constraints - The participation constraint exacts whether the existence of an entity depends on its being related to another
The Transactions- A transaction is definite as the unit of work in a database system. Database systems that deal with a huge number of transactions are also termed as transaction p
Define raid? Briefly explain it? A range of disk organization methods, collectively called redundant arrays of independent disks (RAID) o Improvement of reliability throug
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