Sunday, May 17, 2020

Questions On Database Management System - 1123 Words

Jody Fedor IT2700: Systems Analysis Design Assignment #6 – Review Questions Chapter #6 – Data Design 1. Explain the main difference between a file-oriented system and a database system. A file-oriented system utilizes data in a regular OS file based format where a database system uses a database engine that organizes data in a database in a table format utilizing rows for each record. 2. What is a DBMS? Briefly describe the components of a DBMS. DBMS stands for Database Management System. A DBMS is a collection of tools, features, and interfaces that enables users to add, update, manage, access, and analyze the contents of a database. A DBMS is made up of a DML (data manipulation language), Schema and subschemas, Physical data repository, and an Interface to allow access to the database from DBA’s, Users, and Related Information Systems. 3. Describe a primary key, candidate key, secondary key, foreign key, and common field. Primary Key – a field or combination of fields that uniquely and minimally identifies an entity. Candidate Key – Any field or combination of fields that can act as the primary key but are not. Secondary Key – Any field of combination of fields that can be use to identify a entity. Foreign Key – A field that exists in an entity that is the PK of another entity. Common Field – An attribute (field) that appears in more than one entity (record). 4. What are entity-relationship diagrams and how are they used? What symbol isShow MoreRelatedQuestions On Database Management System Essay1834 Words   |  8 Pages______________________________________ Please do not add any more lines to each question than is provided. There is ample room to supply the correct answers. 1.1 List four examples of database systems other than those listed in Section 1.1. †¢ Hospital Management system - patient details database †¢ Car sales and service system -Customer and inventory database †¢ Mobile shop system -Customer and inventory database †¢ Department of Homeland security -Student’s database 1.2 Define each of the following terms: Data DetailsRead MoreQuestions On Database Management System921 Words   |  4 Pages1. Interpreting language: Since the file-processing system can be built on any of the programming languages, this will be a tedious task for other language developers to understand the actual logic behind the data storage and build a new requirement. But Database Management System (DBMS) uses a Structured Query Language (SQL) which will be used universally to insert, update or delete the data by all the developers and this will act as a common language for all the developers/ end users to work withRead MoreIT 205 Week 3 Individual Assignment899 Words   |  4 Pages Enterprise Applications Paper Question 1: Describe two effects of database tools and   technologies on business performance and decision making. Database tools and technologies affected the business processes and decision making by a great extent. The most important benefit of the database is to change unstructured information into structured information, and allow users to analysis the data stored into different tables with the help of queries. Before database, all the information used to storedRead MoreDatabase Management and Information Retrieval1367 Words   |  5 PagesDifferentiate between database management system and information retrieval system by focusing on their functionalities. Answer A database management system (DBMS) is the main software tools of the database management approach because it controls the creation, maintenance and use of the databases of an organization and its end users. Information retrieval is a system that to provide the relevant information based on the user needed. This process can be find through the passwords or keywords or queryRead MoreDatabase Management System ( Dbms )1391 Words   |  6 Pages A database management system or DBMS is a certain type of system software, which is used for the creation, and management of databases. A DBMS serves for multiple purposes but is mainly used to provide users and programmers with a systematic way to retrieve, create, manage, and update data. A DBMS serves as an interface between data and its end user, making sure that data is consistently organized and remains easily accessible to users. DBMS’s are vital to several aspects of our technological worldRead MoreManagement Informational System 1165 Words   |  5 PagesAnswer Review questions 2, 3, 5, 7, 8, 10, 13, 16, 18, amp; 22 in your own words. First, write the questions, and then answer with proper explanation. 1. Define the term database. How is it different from a database management system? Database is simply a collection of data. A database helps and provides managers and decision making people with timely and relevant information that leads the company to organizational success. A database management system is totally different than regularRead MoreDatabase Mangement and Retrieval System1425 Words   |  6 PagesQuestion 1. Differentiate between database management system and information retrieval system by focusing on their functionalities. Database Management System (as known as DBMS) is a set of application that enable user to create, edit, update, store and retrieve data from database files. By using DBMS, data in a database can be added, deleted, changed, sorted and searched. DBMSs are usually used to manage employee information of a big company, customer information and stock information. By usingRead MoreNt2520 Unit 3 Assignment 1 Essay618 Words   |  3 PagesOutcomes Use the database modeling template in MS Visio. Create entities and add attributes of a database. Define relationship between entities of a database. Create many-to-many relationships with a linking table. Assignment Requirements Answer the following True or False questions on the student answer sheet. Required Resources Textbook Submission Requirements Submit your written answers to your instructor at the beginning of Unit 4. Unit 3 True/False Questions Indicate whetherRead MoreAnalysis of Database Management and Information Retrieval Systems1117 Words   |  5 PagesDIFFERENTIATE BETWEEN DATABASE MANAGEMENT SYSTEM AND INFORMATION RETRIEVAL SYSTEM BY FOCUSING ON THEIR FUNCTIONALITIES 2. HIGHLIGHT THE DIFFERENCES BETWEEN DATA AND INFORMATION 3. MAKE APPROPRIATE USE OF DIAGRAMS TO ILLUSTRATE THE UNDERLYING CONCEPTS/COMPONENTS OF DATABASE MANAGEMENT SYSTEM AND INFORMATION RETRIEVAL 4. DIFFERENTIATE BETWEEN STRUCTURED AND NON STRUCTURED DATA. GIVE EXAMPLES FOR EACH. 5. REFERENCES 6. APPENDICES â€Æ' 1. DIFFERENTIATE BETWEEN DATABASE MANAGEMENT SYSTEM AND INFORMATION RETRIEVALRead MoreRelational Database Concepts and Applications: Research Paper669 Words   |  3 PagesRelational Database Concepts and Applications Professor Kevin W†¦.. By Bob Bobson March 7, 2014 Introduction In order to successfully transition from our current paper and email based equipment request method to a completely paperless online system, we must build and implement a relational database. A relational database will allow us to store, filter, make changes to, and share of the data that is needed in our new online equipment ordering system. Relational Database Overview

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.