Relational model Essays & Research Papers

Best Relational model Essays

  • Relational Model - 393 Words
    Relational Model: Data Structure The relational database model consists of three parts: data structure (this section), data integrity, and data manipulation. The data structure model defines how to represent data. Most basic to the data structure model is the relation which is illustrated below: A relation, which is the most basic part of the data structure model, has two parts: relation heading and relation body: * Relation Heading A relation heading is a set of (attribute, domain)...
    393 Words | 2 Pages
  • Introduction to Relational Model - 2681 Words
    Introduction The first database systems were based on the network and hierarchical models. A database can be defined as a collection of non-redundant data which can be shared by different application systems. A database implies separation of physical storage from use of the data by an application program to achieve program/data independence. Using a database system, the user or programmer or application specialist need not know the details of how the data are stored and such details are...
    2,681 Words | 9 Pages
  • Database: Relational Model and Code
    ------------------------------------------------- GeRard ryan relational database assignment ------------------------------------------------- GeRard ryan relational database assignment T T N N E E R R U U Contents Introduction - 2 - Description of Assignment - 2 - Problems & Solutions - 4 - Normalisation - 5 - Data dictionary - 0 - Relationships between each Table - 5 - Database Tables - 6 - Introduction Description of Assignment The company I have...
    1,737 Words | 14 Pages
  • Relational Database Model - 964 Words
    Comparing and Contrasting the Relational Database Model and OO Model The relational database model is based upon tables or relations. In this model, the physical implementation of the database is abstracted away from the user. Users query the database using a high-level query language, such as SQL. The relations are made up of columns, which have headings indicating the attribute represented by that column. Tables have key fields, which can be used to identify unique records. Keys relate...
    964 Words | 3 Pages
  • All Relational model Essays

  • Relational Data Base Model
    What are the advantages and limitations of Relational Database Model? Advantages: he relational database model was first introduced by E.F. Codd of IBM in 1969. In the relational model, data are structured into tables (i.e., "relations") consisting of rows and columns. Each row contains a single record comprised of individual data elements (or "attributes") organized in columns containing elements of the same kind according to the rules defined for that column. Alternate database models...
    875 Words | 3 Pages
  • The Relational Model 1: Introduction, QBE, and Relational Algebra
    Chapter 2 The Relational Model 1: Introduction, QBE, and Relational Algebra Solutions Answers to Review Questions Note: Answers to odd-numbered review questions are found in Appendix D of the textbook. 1. A relation is a two-dimensional table in which (1) the entries in the table are single-valued; (2) each column has a distinct name; (3) all of the values in a column are values of the same attribute; (4) the order of the columns is immaterial; (5) each row is distinct; and (6) the order...
    2,147 Words | 6 Pages
  • Chapter 3 - Relational Database Model
    Topic#6: Relational Database Operators 6.1 Significance of Relational Operators • Relational database supports basic database operations in order to provide useful means for retrieving or manipulating data in tables. • Because the relational model has its mathematical basis upon the relational theory (by thinking tables as sets or relations), the supported database operators conform to existing operators in relational algebra. • In fact, a relational database software...
    1,097 Words | 6 Pages
  • Entity-Relationship Diagrams and the Relational Model
    Review Entity-Relationship Diagrams and the Relational Model CS 186, Fall 2007, Lecture 2 R & G, Chaps. 2&3 A relationship, I think, is like a shark, you know? It has to constantly move forward or it dies. And I think what we got on our hands is a dead shark. Woody Allen (from Annie Hall, 1979) • Why use a DBMS? OS provides RAM and disk Review • Why use a DBMS? OS provides RAM and disk – Concurrency – Recovery – Abstraction, Data Independence – Query Languages – Efficiency (for most...
    2,515 Words | 15 Pages
  • Database: Relational Model and Entity Course Field
    Review Questions 6. What is an entity? Something about which we want to store data. 7. What is business logic? The set of rules that govern an organizations processes. 8. What is a relational database? A data base that organizes data into overlapping tables. They follow a set of very specific rules that ensure data contained in the database will be consistent. 9. How do the following terms relate to one another: record, table, field, primary key? Rows are called...
    421 Words | 3 Pages
  • Relational Databases - 4830 Words
    CHAPTER 4 RELATIONAL DATABASES SUGGESTED ANSWERS TO DISCUSSION QUESTIONS 4.1 Contrast the logical and the physical view of data and discuss why separate views are necessary in database applications. Describe which perspective is most useful for each of the following employees: a programmer, a manager, and an internal auditor. How will understanding logical data structures assist you when designing and using database...
    4,830 Words | 23 Pages
  • Relational Algebra - 3731 Words
    RELATIONAL ALGEBRA Query Language It is a Language in which a user request information from the database. These languages are typically of a level higher than that of the standard programming language. It is divided into either procedural or non-procedural language. In the procedural Language, the user instructs the system to perform the sequence of operation on the database to compute a desired result. In a non-procedural Language, the user describes the information desired...
    3,731 Words | 32 Pages
  • Relational Algebra - 955 Words
    Query Examples in Relational Algebra and SQL Consider the relation schemas as follows. works(person name, company name, salary); lives(person name, street, city); located in(company name, city); managers(person name, manager name); where manager name refers to person name. a Find the names of the persons who work for company ’FBC’ (company name=’FBC’). Relational algebra: SQL: Select person_name From works Where company_name = ’FBC’ b List the names of the persons who work for company ’FBC’...
    955 Words | 4 Pages
  • Relational Calculus - 1192 Words
    Tuple Relational Calculus ( TRC ) Introduction Procedural Query language query specification involves giving a step by step process of obtaining the query result e.g., relational algebra usage calls for detailed knowledge of the operators involved difficult for the use of non-experts Declarative Query language query specification involves giving the logical conditions the results are required to satisfy easy for the use of non-experts Prof P Sreenivasa Kumar, Department of CS&E, IITM. 1...
    1,192 Words | 5 Pages
  • Relational Databases - 750 Words
    Relational Databases Lee Rudd Abstract Data for our programs are stored in various formats. The most commonly used format is in the form of a database since databases are not dependent on a single program or hardware platform. These databases are stored in five structures of hierarchical, network, relational, multidimensional, and object-oriented. Hierarchical structure organizes data in a one to many relationship. The network goes of the hierarchical structure by organizing data...
    750 Words | 3 Pages
  • Comparison of Hierarchical and Relational Databases
    Hierarchical and relational databases are two different manners in which to store and organize data that also allow management and utilization of that data. There are essential aspects that any database should be able to provide, those of creating, reading, updating and deleting data. Upon becoming familiar with how each database is set up, it is important to look at the advantages and disadvantages of each model in determining which type of database one would want to utilize. The hierarchical...
    1,249 Words | 4 Pages
  • Files and Relational Databases - 813 Words
    Files and Relational Databases What is a file? • contains groups of records used to provide information for operations, planning, management and decision making. • can be used for storing data for an indefinite period of time, or they can be used to store data temporarily for a specific purpose. FILE TYPES • Master Files -- contain records for a group of entities. The attributes may be updated often, but the records themselves are relatively permanent. These...
    813 Words | 4 Pages
  • Relational Algebra and Bank Corporation
    Exercises 3 (RA - TRC -DRC ) Consider the following relational database: employee(employee-name, street, city) works(employee-name, company-name, salary) company(company-name, city) manages(employee-name, manager-name) For each of the following queries, give an expression in relational algebra, tuple relational calculus, and domain relational calculus: a. Find the names of all employees who work for First Bank Corporation. b. Find the names and cities of residence of all...
    1,070 Words | 3 Pages
  • relational database summary - 485 Words
    Accounting Information System Summary of Relational Database 1. Relational databases underlie most modern integrated AISs. a. They are the most popular type of database used for transaction processing. b. In this chapter, we’ll define the concept of a database. 2. Database systems were developed to address the problems associated with the proliferation of master files. a. For years, each time a new information need arose, companies created new files and programs. b. The result: a...
    485 Words | 2 Pages
  • Relational Database Management System
    Relational Database Management System Oracle provides a flexible RDBMS called Oracle7. Using its features, you can store and manage data with all the advantages of a relational structure plus PL/SQL, an engine that provides you with the ability to store and execute program units. The server offers the options of retrieving data based on optimization techniques. It includes security features that control how a database is accessed and used. Other features include consistency and protection of...
    1,168 Words | 4 Pages
  • Watermarking Relational Databases - 3087 Words
    International Journal of Computer Science, Engineering and Applications (IJCSEA) Vol.3, No.1, February 2013 WATERMARKING RELATIONAL DATABASES Mayuree K.Rathva¹,Prof.G.J.Sahani² Dept.of Computer Engineering, SVIT,Vasad, Anand,Gujarat, INDIA ¹mayurirathva@gmail.com and ²Gurcharan_sahani@yahoo.com ABSTRACT Uptil now most of the work is done on image, video, audio.but today the Database watermarking becomes the research topic because of the increasing the use of relational database...
    3,087 Words | 10 Pages
  • History of Relational Database - 751 Words
    History of Relational Database Hao-Wei He Wilmington University October 9, 2010 Abstract Database system have been inseparable with our daily life, since IBM developed the hierarchical database management system in 1969, database system has been innovated many times, such as hierarchical database, network database, relational database, and object-oriented database. Nowadays, relational database still is the most popular model used by different industries; this article is going to...
    751 Words | 3 Pages
  • Fundamentals of a Relational Database - 7444 Words
    Fundamentals of Relational Database Design By Paul Litwin This paper was part of a presentation at a Microsoft TechEd conference in the mid-1990s. It was adapted from Microsoft Access 2 Developer's Handbook, Sybex 1994, by Ken Getz, Paul Litwin and Greg Reddick. Reprinted with permission of the publisher. While the paper uses Microsoft Access (version 2) for the examples, the vast majority of the discussion applies to any database and holds up pretty well over 11 years after it was written....
    7,444 Words | 20 Pages
  • Three Benefits of a Relational Database
    Three Benefits of a Relational Database Benefits of a relational database: https://www.sunadal.co.uk/db.php Advantages of using a relational database: http://pic.dhe.ibm.com/infocenter/tivihelp/v3r1/index.jsp?topic=%2Fcom.ibm.itnetview.doc%2Fanmdbmst18.htm Relational Database Systems: http://www.orafaq.com/wiki/Relational_Database_Systems Three main benefits of a relational database are report generation, data storage, and data integrity. When putting information in a relational...
    402 Words | 1 Page
  • History of Relational Databases - 339 Words
     The history began between Relational Databases and SQL. In 1970, Edgar F. Codd wrote the now-famous paper on relational data modeling: "A Relational Model of Data for Large Shared Data Banks." The original relational database language, developed by IBM, was called SEQUEL (Structured English Query Language) to support its prototype RDBMS (Relational Database Management System) called System/R. The name later was changed from SEQUEL to Structured Query Language. In the beginning Codd started...
    339 Words | 2 Pages
  • Relational Database System – Sql Tutorial
    U05A1 RELATIONAL DATABASE SYSTEM – SQL TUTORIAL IT2230 Introductions to Databases u05a1 Relational Database System – SQL Tutorial Assignment Overview of Lesson Assignments Table of Contents Overview of Lesson Assignments 2 LESSON 3 3 Exercise 1 3 Exercise 3 3 Exercise 5 4 Summary of Lesson 3 4 LESSON 4 5 Create Table Exercise 5 Summary of Lesson 4 5 LESSON 5 6...
    783 Words | 6 Pages
  • Relational Database Management System (Dbms)
    Running head: TERM PROJECT Term Project and Proposal Name: University: Course: Date of submission: Abstract Business corporations often require summarized pieces of data in the form of pivot tables for efficient and strategic decision-making. However, the use of pivot tables poses certain data storage problems especially in the light of the need to have the formulas stored with data. This paper presents one data storage situation where using pivot tables for summarizing data...
    1,703 Words | 6 Pages
  • Fourth Normal Form in Relational Database
    [i]( Fourth Normal Form in Relational Database (May 2012) Amandeep Kaur, University of Auckland, New Zealand Abstract—This report is being written to understand the concept of Fourth Normal form in context of relational database. Multivalued dependency and the rules to achieve fourth normal form are explained. The anomalies associated with the fourth normal form are discussed and the consequences of violating 4NF is explained. INTRODUCTION T HE most important issue in the design of...
    2,789 Words | 15 Pages
  • A Model Theory for Generic Schema Management Models
    ATLANTIC INTERNATIONAL UNIVERSITY A Model Theory for Generic Schema Management Models Kinan M Al Haffar UM4699SIT10550D 07/08/2007 Abstract The core of a model theory for generic schema management is developed. This theory has two distinctive features: it applies to a variety of categories of schemas, and it applies to transformations of both the schema structure and its integrity constraints. A subtle problem of schema integration is considered in its general form, not bound to any...
    5,618 Words | 16 Pages
  • Database Models and Legacy Systems
    Database Models and Legacy Systems The evolution of the information age demanded robust management systems for storing large volume of data, efficiency in retrieval, and enhanced data security and sharing; hence, the development of databases from flat file systems. Despite this advancement in technology, many organizations such as Colorado Financial Reporting System (COFRS) continue to use legacy database systems. Colorado Financial Reporting System (COFRS) The Colorado Financial...
    1,007 Words | 4 Pages
  • Evolution of Data Models - 1131 Words
    The Evolution of Data Models The quest for better data management has led to different models that attempt to resolve the file system’s critical shortcomings. Because each data model evolved from its predecessors, it is essential to examine the major data models in roughly chronological order. 1.1 The Hierarchical Model A Hierarchical Database Model is a data model in which the data is organized into a tree-like structure. The structure allows representing information using parent/child...
    1,131 Words | 5 Pages
  • Itco331-1003b-01 Relational Database Management Systems
    Discussion Board 1 ITCO331-1003B-01 Relational Database Management Systems July 25, 2010 Some of the advantages of MS Access are that the style of it is familiar to most users. You can enforce discipline when entering data through the data entry forms. All kinds of rules to make sure you enter the right kind of data can be implemented. Connectivity options are a strong asset; Access databases can connect to Excel tables, ODBC connectors, SQL Servers, and SharePoint Services sites for...
    275 Words | 1 Page
  • Relational Schema Car Rental Key 544 F1
    MGMT 54400 Fall 2013 Relational Schema 1. CUSTOMER (C_Name, C_Phone, Dr_Lic_No, C_Street, C_City, C_State, C_Zip) 2. CAR (Vehicle_ID, Lic_Plate_No, Make, Model, Price, Mileage, Car_Type, D_Name) FK D_Name  DEALER 3. COMPACT_CAR (C_Vehicle_ID, No_of_Doors) FK C_Vehicle_ID  CAR 4. LUXURY_CAR (L_Vehicle_ID, Headroom, Legroom, Premium) FK L_Vehicle_ID  CAR 5. DEALER (D_Name, D_Phone, D_Street, D_City, D_State, D_Zip) 6. SERVICE_CO (Co_Name, Co_Phone, Co_Street, Co_City, Co_State,...
    182 Words | 2 Pages
  • Relational Database System Sql Analysis Paper
    Relational Database System SQL Analysis Paper In this section I learned that SQL can input a lot of information into Access for you. I have taken some SQL courses before and still have not learned all of these commands. I can see why people take full degrees on just programming. Another thing I saw was SQL could do a lot of damage to Access. All you would have to do is write a script that could change a lot of information. During this assignment I learned “SQL (pronounced "ess-que-el")...
    579 Words | 2 Pages
  • Databases: Relational Database and Single Phone Number
    GAC011 “Access Glossary” Student Name: Montserrat Priego Student ID: ESN26788 Teacher Name: Yamile Chagaray Date: August 27, 14 Word Count: 304 words 1. Table: Similar to spreadsheet used to store data. 2. Queries: Method of extracting specific data 3. Forms: Element to modify and insert records into you databases 4. Reports: It contains raw data and allows the organization of information in an easy way. 5. Databases: collection of associated...
    402 Words | 2 Pages
  • Relational Database vs Object Oriented Database
    Institute of graduate studies &research Information technology department Database systems Report on: (Comparison between Relational database & object oriented database) By: Mohammed Hussein Mahmoud Mustafa khedr To: Dr. Saad Darwish Introduction A database is a means of storing information in such a way that information can be retrieved from it. Thus a database is typically a repository for heterogeneous but interrelated pieces of information. Often a database contains more than...
    2,737 Words | 9 Pages
  • Relational Database Concepts and Applications: Research Paper
     Research Paper University of Maryland University College CMIS 320 6381 Relational 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...
    672 Words | 3 Pages
  • Data Model: Oodbms vs. Rdbms
    1 Data model: OODBMS vs. RDBMS For this coursework two kinds of data models can be used. The object oriented data model, Object Oriented Database Management System(OODBMS), or the relational data model, Relational Database Management System(RDBMS). The differences between these two models and the data model to be used are described in this chapter. 1.1 Enumeration of some specifications of OODBMS and RDBMS RDBMS have been around for more than 20 years, OODBMS are relatively new; RDBMS...
    1,067 Words | 3 Pages
  • Does Glass Law Implement Waterfall Model
    Team Team Id Team NameGrading Player Name | CLUB Club nameClub Address Club Phone Club Email | TEAMCLUBTeam Id Club Name | MATCH RESULTWinning teamResultOver’s played Player matchCOACHCoach Id Coach NameCoach AddressCoach PhoneCoach Email | PLAYER Player IdPlayer NamePlayer AddressClub...
    410 Words | 3 Pages
  • Fleet Truck Maintainenace Database Paper
    Fleet Truck Maintainenace Database Paper Its mind numbing to reflect the amount of technical change that has taken place in only a short period of time. In this current age, innovation has opened doors to a wide capacity for data collection and management. An example is the amount of business use with Microsoft Access. Businesses have gained from Access’s technical capabilities by using it to offer a wide range of ways to add value and efficient to any facility. Today we use Access databases...
    914 Words | 3 Pages
  • Basic Computer Application Exam Paper
    UNIVERSITY OF MAURITIUS FACULTY OF LAW AND MANAGEMENT SECOND SEMESTER EXAMINATIONS MAY 2011 PROGRAMME BSC (HONS) ACCOUNTING (MINOR : FINANCE) BSC (HONS) ACCOUNTING (MINOR : MANAGEMENT) BSC (HONS) FINANCE BSC (HONS) FINANCE (MINOR : LAW) BSC (HONS) MANAGEMENT BSC (HONS) MANAGEMENT WITH FINANCE BSC (HONS) MARKETING MANAGEMENT BSC (HONS) HUMAN RESOURCE MANAGEMENT BSC (HONS) BUSINESS STUDIES (PART-TIME) MODULE NAME DATE May 2011 TIME Hours NO. OF QUESTIONS SET 4 BASIC COMPUTER APPLICATION MODULE...
    2,464 Words | 10 Pages
  • MGT 245 Entire Course
    In this archive file of MGT 245 Entire Course you will find the next documents: MGT-245-Assignment-Effective-Teams.doc MGT-245-Assignment-Final-Research-Paper.doc MGT-245-Assignment-Organizational-Culture.doc MGT-245-Assignment-Perception-and-Decision-Making.doc MGT-245-Assignment-Power-and-Politics-PART-1-OF-2.doc MGT-245-Assignment-Power-and-Politics-PART-2-OF-2.doc MGT-245-Capstone-Discussion-Question.doc MGT-245-CheckPoint-1-Organizational-Structure.doc...
    417 Words | 3 Pages
  • Pt2520 Final Answers 1/3
    reduancy refers to what database condition? The same data is recorded in more than one place in the same database. which best defines the function of a primary key uniquely identify the record what best describes the function of a foreign key. the primary key repeated in another table to show relation a database entity can be best described as: something that the something the database is concerned for, and can be added into the database which best defines the term database requirement?...
    329 Words | 1 Page
  • Learning Design Database - 2332 Words
    Rosina Surovi Khan et al. / (IJCSE) International Journal on Computer Science and Engineering Vol. 02, No. 08, 2010, 2616-2621 Design of a Hospital-Based Database System (A Case Study of BIRDEM) Rosina Surovi Khan Department of Computer Science and Engineering Ahsanullah University of Science and Technology (AUST) Dhaka, Bangladesh Email: surovi99@yahoo.com Abstract— As technology advances, information in different organizations of Bangladesh can no more be maintained manually. There is a...
    2,332 Words | 8 Pages
  • RDBMS - 3156 Words
    INTRO TO RDBMS-OODBMS-ORDBMS Seema Sirpal Delhi University Computer Centre Databases Data - raw facts/details DATABASE- A shared collection of logically related data (and a description of this data), designed to meet the organization needs of an organization The Database Management System (DBMS) - software that enables users to define, create and maintain the database and provides controlled access to the database Why We Need DBMS There is an information explosion in...
    3,156 Words | 28 Pages
  • Project Report - 7285 Words
     Creating, Editing, and Managing Report Models for Reporting Services SQL Server Technical Article Published: January 2006 Applies To: Microsoft® SQL Server™ 2005 Reporting Services Summary: This paper provides information about managing and editing report models with Microsoft SQL Server Reporting Services. Introduction Microsoft® SQL Server™ Reporting Services (SSRS), a component of Microsoft SQL Server, is a comprehensive, server-based platform...
    7,285 Words | 21 Pages
  • data management on wilmington university
     DATA MANAGEMENT PROJECT STUDENT DATA MANAGEMENT ALONG WITH ALERT MESSAGE TO PHONE ALAVALA MANOHAR REDDY IST 7000 WILMINGTION UNIVERSITY Database management is used all over the companies, educational institutions, government and private sectors around the...
    2,372 Words | 21 Pages
  • Databasse - 1163 Words
    FACULTY OF MEDIA, INFORMATION & COMMUNICATION TECHNOLOGY DATABASE SYSTEMS 201 Due Date: Chapters Covered: 06 MAY 2013 Database System Data Analysis Entity Relationship Modeling Enhanced E-R Models Normalization Structured Query Language Joins and Views Sub queries and Schema 100 DIP –DBS 201 Maximum Marks: Unique Assignment Number: Background This assignment is based on the content to be covered in the first semester. Naturally all material provided or prescribed will be used. Purpose: The...
    1,163 Words | 6 Pages
  • Database Design - 149940 Words
    Database Design Ryan K. Stephens Ronald R. Plew 800 East 96th St., Indianapolis, Indiana, 46240 USA Database Design ASSOCIATE PUBLISHER Copyright  2001 by Sams Publishing EXECUTIVE EDITOR Bradley L. Jones All rights reserved. No part of this book shall be reproduced, stored in a retrieval system, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without written permission from the publisher. No patent liability is assumed with...
    149,940 Words | 872 Pages
  • Logical Design - 1162 Words
    Logical Design Domonic Lastoria Professor Irene Hoskins Strayer University CIS 111 1/19/2013 1. List the advantages of a relational model specific to ACME Global Consulting. The relational database model specified for the ACME Global Consulting organizes given data in table series. Each of the table has fields specified with specifications regarding the data type stored (Easytoteach, 2011). The advantages of the relational model includes...
    1,162 Words | 5 Pages
  • Cis510 Chapter 13 Rmo
    Rethinking Rocky Mountain Outfitters Chapter 13 Questions Update the RMO relational database design in Figure 13-9 based on the changes that you made to the ERD. Be sure that all your database tables are in 3NF. Write ODL schema specifications for all new classes and relationships that you added to the class diagram. Verify that the new classes and relationships are accurately represented in the updated relational database design that you developed for question 1. Answers Professor, I...
    253 Words | 2 Pages
  • Huffman Trucking: Database Design and Development
    Running head: HUFFMAN TRUCKING Huffman Trucking: Database Design and Development Huffman Trucking started out as a single owner, single truck and trailer, operating in the Cleveland Ohio area back in 1936 doing local contract hauls. Today, Huffman Trucking is a National carrier with 1,400 employees, 800 tractors, 2,100 trailers, and 260 roll-on/roll-off units, operating from 3 logistical hubs located in Los Angeles, California, St. Louis, Missouri, and Bayonne, New...
    2,033 Words | 6 Pages
  • Answer Case 342 - 403 Words
    342 Case Questions 1. In the questions associated with the BEC case at the end of chapter 9. you were asked to modify the entity-relationship diagram drawn by the Stillwater student team to incluse any other entities and the attributes you identified from the BEC cases review your answers to these questions and modify the relations in BEC figure 10-2 to include your changes. 2. Study your answer to question 1. Verify that the relations you say represent the My roadway database are...
    403 Words | 2 Pages
  • Business Process Reengenering - 560 Words
    1. Business process reengineering (BPR) is the fundamental analysis and redesign of workflow within and between enterprises. 2. Reengineering is the fundamental rethinking and radical redesign of business processes to achieve dramatic improvements in critical contemporary measures of performance such as cost, quality, service and speed. 3. BPR reached its heyday in the early 1990's when Michael Hammer and James Campy published their best-selling book, "Reengineering the Corporation"....
    560 Words | 3 Pages
  • Introduction to Query Optimization - 5828 Words
    13 INTRODUCTION TO QUERY OPTIMIZATION This very remarkable man Commends a most practical plan: You can do what you want If you don’t think you can’t, So don’t think you can’t if you can. —Charles Inge Consider a simple selection query asking for all reservations made by sailor Joe. As we saw in the previous chapter, there are many ways to evaluate even this simple query, each of which is superior in certain situations, and the DBMS must consider these alternatives and choose the one...
    5,828 Words | 20 Pages
  • Unit 18 Database Design Assignment Brief 2015
     Learner’s Comments ( What went well, What could you improve) Assessor’s name: Assessor’s signature: Date: Learner’s Declaration: I declare that this assignment is my individual work. I have not worked collaboratively nor have I copied from any other student’s work or from any other source except where due acknowledgment is made explicitly in the text, nor has any part been written for me by another person. Signed:...
    1,421 Words | 8 Pages
  • Watermark - 2445 Words
    International Journal of Security and Its Applications Vol. 7, No. 2, March, 2013 A Novel Relational Database Watermarking Algorithm Based on Clustering and Polar Angle Expansion Zhiyong Li1, Junmin Liu1 and Weicheng Tao1 College of Information Science and Engineering, Hunan University, Changsha, China zhiyong.li@hnu.edu.cn, 326860194@qq.com, weishens1985@hotmail.com Abstract Digital watermarking has been widely applied to relational database for ownership protection and information hiding....
    2,445 Words | 10 Pages
  • Mca Syllabus - 18370 Words
    ACHARYA NAGARJUNA UNIVERSITY 3 year P.G. Degree Course (Semester System) MASTER OF COMPUTER APPLICATIONS W.E.F. 2009 – 2010 R.V.R. & J.C. COLLEGE OF ENGINEERING (Sponsored By Nagarjuna Educational Society) CHOWDAVARAM – GUNTUR-19 ACHARYA NAGARJUNA UNIVERSITY RULES AND REGULATIONS OF SEMESTER SYSTEM IN POST-GRADUATE DEGREE COURSES EFFECTIVE FROM THE ACADEMIC YEAR 2009-2010 ONWARDS. 1. ADMISSION : Candidates shall be admitted into P.G.Degree Courses strictly in accordance with the...
    18,370 Words | 56 Pages
  • Pantaloon - 2237 Words
    RAILWAY ENQUIRY AND RESERVATION SYSTEM Y6470 – SIDDHARTH SHANKER Y6377 – RASHISH TANDON Y6136 – BANDA GIRISH KUMAR CS - 315 Project Guided By: Prof. Arnab Bhattacharya Presented: 2008 – 09 Semester - II INDEX 1. Introduction a. Motivation b. Scope / Feasibility c. Functionality 2. Implementation a. Referential - Diagram b. Schemas and Data Dictionary c. Data Flow d. Session - Management 3. Performance Analysis 4. External Interface Requirements 5. Notes and suggested future work 6....
    2,237 Words | 10 Pages
  • The Daffodil Theatre Booking System
    KINGSTON UNIVERSITY Faculty of Science, Engineering and Computing CI 3116 – Advanced Database Systems DESIGN EXERCISE FINAL REPORT Daffodil Theatre Booking System Gabriel Delucis Hilal K0935109 15th May 2012 Table of Contents Introduction 1 Aim 1 Objectives 1 Conceptual Data Model 1 Relational Data Model 1 Implementation 1 Conceptual Data Model 2 Class Diagram 2 Descriptions and Assumptions 2 Discussion 4 Relational Data Model 5 Relational Data Model...
    5,700 Words | 25 Pages
  • MS Access - Part 1
    Microsoft® Access 2010 Test Computer Application I Chapters 1–3 (Part #1) I agree to work independent and without help or assisting my fellow students. If I am caught cheating, I will accept the punishment deemed appropriate by Professor Sims and guidelines set forth by the Business Technology Department which includes but not limited to, a zero on the test for both parties. _________________________________ ______________________________________ Print Name Sign Name 1. Raw...
    468 Words | 4 Pages
  • Mister - 1807 Words
    ITRW 311 Mr R Botes Building 6-105 (Office hours will still be given) romeo.botes@nwu.ac.za DATABASES I 1 Chapter 4 The Relational Database Model Textbook p116-121 Study Unit: 4 2 In this chapter, you will learn: • What is meant by relational algebra? • How to manipulate database tables using relational set operators • How the DBMS supports the key relational operators: select, project and join. • The different types of joins. • How to write queries using relational algebra...
    1,807 Words | 13 Pages
  • CSC424 Exam 1 - 856 Words
    CSC 424 Introduction to Database March 27, 2012 Prof Emile C. Chi 1st Exam NAME______ 1) (30 points) Let R (A, B, C, D, E) be a relations with attributes A, B, C, D, E. Let F be the set of functional dependencies: A -> B,C C,D -> E B -> D E -> A a) Compute the closure F+ of F. Give a reason for each dependency in F+ Closure for F+: A+= (A,B,C,D,E) BC+ = (A,B,C,D,E) CD+ = (A,B,C,D,E) E+ = (A,B,C,D,E) b) Draw an E-R diagram for R. c) Is R in BCNF? Give...
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  • Avr Reservation System - 1684 Words
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