Which of the following is not an advantage of the database approach in contrast to the file oriented approach?

In this guide, you will learn advantages and disadvantages of DBMS. We will first discuss what is a file processing system and how Database management systems are better than file processing systems.

Drawbacks of File system

• Data redundancy: Data redundancy refers to the duplication of data, lets say we are managing the data of a college where a student is enrolled for two courses, the same student details in such case will be stored twice, which will take more storage than needed. Data redundancy often leads to higher storage costs and poor access time.
• Data inconsistency: Data redundancy leads to data inconsistency, lets take the same example that we have taken above, a student is enrolled for two courses and we have student address stored twice, now lets say student requests to change his address, if the address is changed at one place and not on all the records then this can lead to data inconsistency.
• Data Isolation: Because data are scattered in various files, and files may be in different formats, writing new application programs to retrieve the appropriate data is difficult.
• Dependency on application programs: Changing files would lead to change in application programs.
• Atomicity issues: Atomicity of a transaction refers to “All or nothing”, which means either all the operations in a transaction executes or none.

  For example: Let’s say Steve transfers 100$ to Negan’s account. This transaction consists multiple operations such as debit 100$ from Steve’s account, credit 100$ to Negan’s account. Like any other device, a computer system can fail lets say it fails after first operation then in that case Steve’s account would have been debited by 100$ but the amount was not credited to Negan’s account, in such case the rollback of operation should occur to maintain the atomicity of transaction. It is difficult to achieve atomicity in file processing systems.

• Data Security: Data should be secured from unauthorised access, for example a student in a college should not be able to see the payroll details of the teachers, such kind of security constraints are difficult to apply in file processing systems.

Advantage of DBMS over file system

There are several advantages of Database management system over file system. Few of them are as follows:

Object oriented programming refers to the programming paradigm based on the concept of objects that can also contain data in form of different fields and these fields are known as properties or attributes. It also includes code in the form of procedures, which are known as methods. The aim of object oriented programming is to implement Real world entities such as polymorphism, inheritance, hiding etc. It binds functions and data that operate over them in order to eliminate that no code can access this particular data instead of function. In order to learn about different object-oriented programming concepts, you can easily avail Assignment help in USA, where professionals are always available to help you in writing for the assignments related to oops.

Article Summary

This meticulous article explains in detail the crucial concept of object-oriented programming along with the multifaceted advantages and disadvantages pertaining to it. It further discusses the various fundamentals linked to the implementation of classes in the object-oriented programming language.

Advantages and Disadvantages of object oriented programming

The primary objective behind the development of object oriented approach is basically to eliminate that limitations of procedural programming method. It has proved as best approach for software development but it also includes some disadvantages. Some of the major advantages and disadvantages of OOP are as follows:

Advantages of object oriented programming (OOP)

• Object-oriented programming provides the feature of reusability of classes with the help of which it is easy to use all the classes again that have already been created previously.
• It allows for the parallel development of classes due to which object oriented programming is considered as a quickest way of development for completing the programs.
• It is one of the secure development approaches in which data is hidden that cannot be assessed by any external function.

Disadvantages of object oriented program`ming (OOP)

• It is possible that the relation among all the available classes become artificial that may cause difficulties in the development.
• In comparative to procedural approach, programs development with object oriented programming language are large in size.
• Due to large size of program, there is a need to execute more instructions.

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Object Oriented Programming – Encapsulation, Objects and instantiation

Program Design

The application is based on a grocery shopping cart. When shopping for groceries online a Customer chooses a Product and places an Order for some quantity of it. The order is added to a Cart. A Date is set for the delivery. More orders can be added to the cart, and they can be changed up until checking out. To get to assignments in short deadlines, you can search for Instant Assignment Help. Programming experts are always available to assist you in completing your assignments on time with high- quality.

The partial UML class diagram below shows the underlying data model you should use to achieve this scenario:

Examples for implementation of classes in object oriented programming language

Product.java

This class contains the data members to store the details of a product such as product code and description etc. Also it consists of the accessors and mutators to access those data members which are declared private. Here, the concept of Encapsulation is used.

Which of the following is not an advantage of the database approach?

Which of the following is an advantage of the database approach quizlet?

Which of the following is one of the advantages of database systems over file processing systems?

Which of the following backup methods involves maintaining a log file of transaction activity occurring since the last backup?