Database normalization Essays & Research Papers

Best Database normalization Essays

  • Database Normalization - 1381 Words
    Normalization A logical design method which minimizes data redundancy and reduces design flaws. Consists of applying various “normal” forms to the database design. The normal forms break down large tables into smaller subsets. First Normal Form (1NF) Each attribute must be atomic • No repeating columns within a row. • No multi-valued columns. 1NF simplifies attributes • Queries become easier....
    1,381 Words | 7 Pages
  • Database Normalization - 777 Words
    Normalization Normalization is a method for organizing data elements in a database into tables. Normalization Avoids • Duplication of Data – The same data is listed in multiple lines of the database • Insert Anomaly – A record about an entity cannot be inserted into the table without first inserting information about another entity – Cannot enter a customer without a sales order • Delete Anomaly – A record cannot be deleted without deleting a record about a related entity....
    777 Words | 5 Pages
  • Database Normalization - 344 Words
    Although, data is separated into different and more complex tables during normalization, the process of normalizing a database can help to organize data more efficiently by minimizing redundancy and providing more accurate records. During the process, column and field names are consolidated into more specific ones to avoid repetition of data. In many cases, tables are divided into two or more tables and linked via a relationship using their Primary Keys and/or Foreign Keys. The main goal is...
    344 Words | 1 Page
  • Database Slides on Normalization - 2087 Words
    Chapter 11 Relational Database Design Algorithms and Further Dependencies Chapter Outline        0. Designing a Set of Relations 1. Properties of Relational Decompositions 2. Algorithms for Relational Database Schema 3. Multivalued Dependencies and Fourth Normal Form 4. Join Dependencies and Fifth Normal Form 5. Inclusion Dependencies 6. Other Dependencies and Normal Forms DESIGNING A SET OF RELATIONS  Goals:  Lossless join property (a must)  Algorithm 11.1...
    2,087 Words | 11 Pages
  • All Database normalization Essays

  • What Is Database Normalization
    August 4, 2009 What is Database Normalization? Database Normalization is a systematic way of ensuring that a database structure is suitable for general – purpose quering and normalization is the process of efficently organizing data in a database. This process was first introduced in 1970 by E.F. Codd and has since been redefined to higher normal forms. The two goals of the normalization process are: eliminating redundant data and ensuring that data dependencies make sense. These goals...
    505 Words | 2 Pages
  • Normalization of Database Management Systems
    Normalization of Database Tables Database Tables and Normalization * Normalization is a process for assigning attributes to entities. It reduces data redundancies and helps eliminate the data anomalies. * Normalization works through a series of stages called normal forms: * First normal form (1NF) * Second normal form (2NF) * Third normal form (3NF) * Fourth normal form (4NF) * The highest level of normalization is not always desirable. * The...
    989 Words | 7 Pages
  • 01: Database Normalization and Ref
    Chapter 1: Overview of Database Concepts TRUE/FALSE 1. A database is a physical storage device for data. ANS: F PTS: 1 REF: 2 2. A field is a basic unit of data also referred to as a record. ANS: F PTS: 1 REF: 3 3. A character is a basic unit of data and can consist of a number, letter, or special symbol. ANS: T PTS: 1 REF: 3 4. A collection of fields is a file. ANS: F PTS: 1 REF: 3 5. A collection of records is a file. ANS: T PTS: 1 REF: 3 6. A field in the logical design of...
    3,348 Words | 28 Pages
  • Database Normalization and Hotel Reservation Website
    GRAND ASTORIA HOTEL RESERVATION WEBSITE A Project Presented to the Faculty of STI College-Zamboanga In Partial Fulfillment of the Requirements for the Degree of Bachelor of Science in Information Technology by Calisang, Ellis Marc D. Caramonte, Edcel B. Lim, Jason Justin O. Abdu-Shakoor L. Ibrahim Project Adviser October 2012 ADVISER’S RECOMMENDATION SHEET This Project entitled GRAND ASTORIA...
    1,437 Words | 10 Pages
  • Database Normalization and Logical Process Concept Paper
    Database Normalization and Logical Process Concept paper This short paper will explain with a simple example the process and the need of normalization in the most of the business databases. Complete proposal break down (Timeline phases, Financial phases) will be submitted per management request. Overview At first any database should be designed with the end user in mind. Logical database design, also referred to as the logical model, is the process of arranging data into logical, organized...
    1,393 Words | 4 Pages
  • Chapter 3: Table Normalization and Windows Azure SQL Database
    Chapter 3: Table Normalization and Windows Azure SQL Database Review Questions 1. What are the conditions for a table to be a relation? Each cell in a table must contain a single value, there should be no duplicated rows, and all the cells in a column must contain the same type of data 2. How do you link a table to another table? Link tables based on a relationship connecting the entities with common column in each table 3. What is functional dependency? Give an example of functional...
    628 Words | 2 Pages
  • Normalization Process - 1486 Words
    The normalization process is used by database developers to design databases in which it is easy to organize and manage data while ensuring the accuracy of data throughout the database. The advantages and disadvantages of both normalization and denormalization of a database are discussed, as well as data integrity versus performance issues that pertain to normalization. The highlights of this hour include * What normalization is * Benefits of normalization * Advantages of...
    1,486 Words | 5 Pages
  • Normalization Questions - 418 Words
    NORMALIZATION TUTORIAL (EXTRA) 1. Given the dependency diagram, answer items a-c: [pic] a. Identify and discuss each of the indicated dependencies. C1 ( C2 represents a partial dependency, because C2 depends only on C1, rather than on the entire primary key composed of C1 and C3. C4 ( C5 represents a transitive dependency, because C5 depends on an attribute (C4) that is not part of a primary key. C1, C3 ( C2, C4, C5 represents a set of proper functional...
    418 Words | 2 Pages
  • Normalizaiton in Database - 1773 Words
    Normalization of Database Tables Introduction to Normalization of Database Tables Normalization of Database Tables l Introduction to Normalization of Database Tables 4 4 4 ISM 602 Dr. Hamid Nemati 4 4 4 Functional Dependency l Introduction to Normalization of Database Tables l l A Functional Dependency Is A Relationship Between Or Among Attributes Such That The Values Of One Attribute Depend On, Or Are Determined By, The Values Of The Other...
    1,773 Words | 21 Pages
  • Database Normalisation - 2088 Words
    Key concepts Let me start by naming a few of the most important concepts in relational database design. A basic understanding of these will be required to understand the rest of the article. * Primary Key (PK) A column with a unique value for each row. Although not all database management systems (DBMS) require you to put a PK into each table, from a design perspective a PK is a requirement. No table should be without one. * Foreign Key (FK) These define relationships between tables....
    2,088 Words | 10 Pages
  • Database concepts - 586 Words
    Assignments Requirements 1. Look up the definition of functional dependency. Can you find a good example? In relational database theory, a functional dependency is a constraint between two sets of attributes in a relation from a database. Cars Suppose one is designing a system to track vehicles and the capacity of their engines. Each vehicle has a unique vehicle identification number (VIN). One would write VIN → Engine Capacity because it would be inappropriate for a vehicle's engine to...
    586 Words | 3 Pages
  • Database Technology - 576 Words
    DATABASE TECHNOLOGIES CLASS T.E. ( INFORMATION TECHNOLOGY) HOURS PER LECTURES : 04 WEEK TUTORIALS : -PRACTICALS : 02 HOURS EVALUATION THEORY 3 SYSTEM: PRACTICAL -ORAL -TERM WORK -- SEMESTER VI MARKS 100 -25 25 Objectives of the course: • This course aims to provide continuum to where the first course of databases left off. Design aspects of relational databases are covered. • Complex data models like OO OR parallel and distributed are introduced. • The course provides students a good...
    576 Words | 2 Pages
  • Database Notes - 652 Words
    Database: specialized structures that allow computer-based systems to store, manage, and retrieve data very quickly. Data are raw facts. Information is the result of processing raw data to reveal its meaning. To reveal meaning, information requires context. Raw data must be properly formatted for storage Data constitute the building blocks of information. Information is produced by processing data. Information is used to reveal the meaning of data. Accurate, relevant, and timely...
    652 Words | 3 Pages
  • How to Do Normalization in Dbms
    NORMALIZATION (Breaking down of a big single table into smaller ones) 1st STEP: UNF (Un-normalized Form) – A table with repeating groups of data OrderInvoice(OrderNo, OrderDate, CustNo, CustName, CustTel, CustContactPerson, {ItemCode, ItemDesc, UnitPrice, Quantity}) 2nd STEP: 1NF (First Normal Form) – Remove Repeating Groups How? By creating another table for the repeated data (the ones in curly bracket) 1. OrderInvoice(OrderNo, OrderDate, CustNo, CustName, CustTel, CustContactPerson) –...
    473 Words | 2 Pages
  • Dictionary and Normalization Guidelines - 1002 Words
    CSS/559 – Data Base Concepts II Data Dictionary and Normalization Guidelines The purpose of a data dictionary is to define the objects and data within an organization's database management system. This metadata does not contain any of the database's data, but only information about the structure, storage and use of the database's data. A data dictionary can be stored in files or documents, or can be stored within a database in the DBMS. For example, a database may contain an employee...
    1,002 Words | 3 Pages
  • Advantages and Disadvantages of Normalization - 677 Words
    advantages and disadvantages of normalization. The process of normalization brings about organization to the database that it is applied to. Normalization makes everyone’s job easier due to the fact that it gets rid of as much useless data as possible. Repeated data is processed and simplified into single data. Repeated data, for example such as having someone named JOHN DOE in one table and the same person’s name JOHNNY M. DOE in another table. Modifying a table with as little data as possible...
    677 Words | 2 Pages
  • Database Design and Management: Assignment
     MIS5370: Database Design and Management Home work Question 1. After completing a course in database management, you have been asked to develop a preliminary ERD for a symphony orchestra. You discover the following entity types that should be included. • CONCERT SEASON: The season during which a series of concerts will be performed. Identifier is Opening_Date which includes Month, Day, and Year. • CONCERT: A given performance of one or...
    1,541 Words | 9 Pages
  • Database Management (Rdbms) Assignment
    Leonard A Wey CS251 – 1102B – 05 Prof. Cathy Vandercreek Phase 4 Individual Project June 13,2011. Table of Contents SECTION HEADING: Phase 1 – Gathering all necessary Information for Database Design 1. Scope of Project 2. Project Identification 3. Database Overview 4....
    1,336 Words | 5 Pages
  • Database Modeling And Design - 5427 Words
    Database Modeling and Design: Logical Design 4th Edition Toby Teorey, Sam Lightstone, Tom Nadeau Lecture Notes Contents I. Introduction ................................................................………...……2 Relational database life cycle 3 Characteristics of a good database design process 6 II. The Entity-Relationship (ER) Model …………...……………….7 Basic ER concepts 7 Ternary relationships 11 III. The Unified Modeling Language (UML)………...…………….13 Class diagrams 13...
    5,427 Words | 35 Pages
  • Database Design and Implementation Coursework
    The aim of this database design and implementation coursework is to design and develop a Quorum Party Database system that will be interacted with the system online by the party goers who are enthusiastic to go and attend parties. It means that party goers/end users will become as a member by registering the site of our on-line party service company. We also create a prototype for web front-end form that will allow end users to check and register in Quorum Party database by including some sample...
    253 Words | 1 Page
  • 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
  • Database Design & Development - 2935 Words
    MODULE: DATABASE DESIGN & DEVELOPMENT ASSIGNMENT TITLE: VETERINARY SURGERY DATABASE DEVELOPMENT Table of Content Task 1 Page 2 Task 2 Page 5 Task 3 Page 14 Task 4 Page 28 Task 5 Page 30 Reference Page 32 Bibliography Page 33 Task 1 Question: AIM: Draw an Entity Relationship Data Model that describes the content and structure of the data held by Petcare. Specify the cardinality ratio and participation constraint of each relationship type. Answer: I have prepared this...
    2,935 Words | 14 Pages
  • 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: Abstract— As technology advances, information in different organizations of Bangladesh can no more be maintained manually. There is a...
    2,332 Words | 8 Pages
  • Database Principles Assignment - 1441 Words
    1. Let us design a database for an bank, including information about customers and their accounts. Information about a customer includes their name, address, phone, and Social Security number. Accounts have numbers, types(e.g., savings, checking) and balances. We also need to record the customer(s) who own an account. Draw the E/R diagram for this database. Be sure to include arrows where appropriate, to indicate the multiplicity of a relationship. Solution: [pic] 2. For your E/R diagram of...
    1,441 Words | 6 Pages
  • Database Design Process - 944 Words
    Abstract Database Systems has a practical, hands-on approach that makes it uniquely suited to providing a strong foundation in good database design practice. Database design is more art than science. While it's true that a properly designed database should follow the normal forms and the relational model, you still have to come up with a design that reflects the business you are trying to model. This paper shows describes design process of database project. The importance of Completing the...
    944 Words | 3 Pages
  • Basic Database Design Concepts
    The Fundamentals of Database Design To end up with a good ‘relational database’ application, you need to ask: Do I actually need one? If so, how far do you want to take it? By this I mean, is this to be a simple database to store information about only one, or very few, related entities (i.e. a list of people who attended a certain event, and how they came to hear about the event) which are not likely to change; or a permanent and well used application with several different entities (i.e....
    2,594 Words | 8 Pages
  • Optimizing Database Design Questions
    "Optimizing Database Design" Please respond to the following: Many legacy systems require normalization. Identify at least two factors that should be considered in order to produce an optimal normalized set of tables when performing normalization. Include in your discussion a detailed example on how each factor would eliminate data redundancy. Optimal database design recognizes proper organization of table structures and relationships. Suggest at least two methods that can be used to...
    160 Words | 1 Page
  • Tour Operator Agency Database
     Tour Operator Agency Database Jeremy Clark Dr. Larisa Bulysheva CIS 515 – Strategic Plan For Database Systems August 14, 2013 Tour Operator Agency Database Week 6 Assignment 5 Mike Jennings Enhanced Database Management Strategy Proposal An efficient data structure design requires a thorough analysis of both the rules a business follows and the relational business objects that allow the production of output for the organization. An efficient...
    650 Words | 3 Pages
  • The Process of Normalization to Reduce Data Redundancy
    Data Ware House Normalization it’s a process of splitting data into 2 or more entities to reduce data redundancy. Normal Forms: 1. A database table must contain no repeating groups 2. All non-key attributes of a table must rely on the entire key of the table. 3. All non-key fields must depend solely on the table’s primary key. First Business Normal Form: removes repeating groups to another entity. This entity takes its name and primary (compound) key attributes, from the original entity and...
    989 Words | 4 Pages
  • Unit 18 - Database P1, M1
    Database Database, it is a place use to store lots of data. It can be seen as a filing cabinet. And database management system (DBMS) is software that specificity designs for managing the data in database such as create, update or delete them. General is including security, retrieval and backup features. User also allows using the data to create a report or share data with multi-user. MS Access is a database management system design by Microsoft. It offers user four important objects they...
    995 Words | 4 Pages
  • MMIS 630 Database Systems Final
    MMIS 630 Database Systems – Final Exam 1. What are the issues in the normalization vs. performance trade-off? Discuss. Your essay should (1) define and describe the characteristics of normalization, (2) define and describe the characteristics of performance, and (3) define and describe what is meant by “performance trade-off”, (4) summarize your essay with recommendations and/or guidelines regarding use of normalization in database design. ANS: When we take a close look in...
    1,939 Words | 7 Pages
  • How Normalization Can Be Used to Check Relations
    How Normalization Can Be Used to Check Relations Data normalization is a technique used during logical data modeling to ensure that there is only one way to know a fact, by removing all structures that provide more than one way to know the same fact as represented in a database relation (table). There are six generally recognized normal forms of a relation: first normal form, second normal form, third normal form, Boyce/Codd normal form, fourth normal form, and fifth normal form, also called...
    482 Words | 2 Pages
  • Database Plan for Riordan Manufacturing Material Ordering
    Learning Team C Database Plan for Riordan Manufacturing Material Ordering Kishan Bhagan Amir Bashir Eric Berger Shawn Chandler Debra Hanzlik University of Phoenix DBM 500 October 22, 2006 Facilitator: Dr. Gary Page Table of Contents Introduction Database Plan Description Database Plan Purpose Project Plan E-R Diagrams A Description of the Normalization of the Database UML Diagrams Class Diagram Use Case Sequence Diagram Database Administration Plan...
    2,376 Words | 10 Pages
  • cheat sheet - 1430 Words
    1,430 Words | 6 Pages
  • Functional Dependency - 447 Words
    Functional Dependency Functional Dependency is the starting point for the process of normalization. Functional dependency exists when a relationship between two attributes allows you to uniquely determine the corresponding attribute’s value. If ‘X’ is known, and as a result you are able to uniquely identify ‘Y’, there is functional dependency. Combined with keys, normal forms are defined for relations. Examples Bear Number determines Student Name: BearNum ---> StuName Department...
    447 Words | 2 Pages
  • IT Solutions - 2079 Words
    1. Identify suitable business data, data elements, data types, and resources, based on the following interview between a database analyst and a lecturer from Sutherland University: Business Data Data Elements Data Types Resources Course Course code Course name Course start date Course end date Integer Character Date Date Admin Classes Class name Start date End date Time Location Class capacity Integer Date Date Date time Integer Variable Admin Students Student...
    2,079 Words | 12 Pages
  • Procurement Management System - 3037 Words
    INFORMATION SYSTEM FOR MANAGERS Report Procurement Management System Submitted by: Ishita Anand Rashima Sharma Punya Priyanka Malhotra Prinsu Panda Abhishek Shah Rahul Gupta Anurag Singh Acknowledgment We would like to sincerely thank Mr. Venkateswara Rao for introducing us to a novel concept as well as giving us the much awaited opportunity to make this project. It was an interesting project, and also enabled us to appreciate the various theoretical concepts of DBMS. We...
    3,037 Words | 12 Pages
  • team work - 680 Words
    CS304 Database System Concepts Assignment 3 Due: April 16, 2013 (Please submit hard copies to class or to Zheng on due date.) Name: Matric No: Q1. (10 points) Consider the E-R diagram in Figure 1, which models an online bookstore. a. List the entity sets and their primary keys b. Suppose the bookstore adds music cassettes and compact disks to its collection. The same music item may be present in cassette or compact disk format, with differing prices. Extend the...
    680 Words | 3 Pages
  • Answers to Premiere Products Exercises
    Chapter 5 Partial Solutions Answers to Premiere Products Exercises PP 5-1 1. PartNum ( Description, OnHand, Class, Warehouse, Price OrderNum ( OrderDate, CustomerNum CustomerNum ( CustomerName, RepNum RepNum ( FirstName, LastName PartNum, OrderNum ( NumOrdered, QuotedPrice Part (PartNum, Description, OnHand, Class, Warehouse, Price) Orders (OrderNum, OrderDate, CustomerNum) Customer (CustomerNum, CustomerName, RepNum) Rep (RepNum, FirstName, LastName)...
    268 Words | 3 Pages
  • Flyer Envelope - 1145 Words
    ONLINE COURSES LIBRARY STUDYROOM FLASHCARDS NEW Like 7.3k Search Database LogIn Like C o r e J a v a 452 1.6K Database Concept Overview of DBMS Database Architecture Database Model Codd's rule RDBMS Concept Database key Normalization E-R Diagrams Generalization and Specialization SQL Concept SQL Introduction DDL Command Create query Alter query Truncate, Drop and Rename query DML Command All DML command TCL Command All TCL Command DCL...
    1,145 Words | 12 Pages
  • dbs201 - 1494 Words
     DBS201 Assignment 2 Due Friday, April 04th by midnight 10% of final mark Your group must consist of 2 or 3 people You will develop a logical database design for the following description shown later (Page 3 etc). Submissions done by a single person will receive a 20% penalty. Required for submission: One: (60 marks) Printed 3NF solution for each user view in this assignment...
    1,494 Words | 19 Pages
  • Service Request Dba/380 Huffman Trucking
    Service Request SR-ht-003 Documentation DBA 380 April 30, 2012 Kurt Jost Service Request SR-ht-003 Documentation Huffman Trucking Background Huffman trucking is a national transportation company with 1,400 employees working in various logistical hubs located in Los Angeles, California, St. Louis, Missouri, and Bayonne, New Jersey. The central maintenance facility located in Cleveland, Ohio has an immediate requirement for a Fleet Truck Maintenance database to ensure the prompt and...
    553 Words | 2 Pages
  • Ddm/380 Normaliziation - 699 Words
    ERD Normalization Name DBM 380 April 19, 2010 Instructor Introduction Normalization means to organize data and break-down the data into smaller tables, which makes data management an easier process. To avert redundant data, normalization of a database occurs thus making sure data dependencies make sense. Database normalization aids in the identification of...
    699 Words | 3 Pages
     Noradin Secondary School Submitted for the partial fulfillment of the requirements for the award of the Degree in Information Communication and Technology Under the Guidance of Mr.Ahmed Nassir July,2011...
    6,576 Words | 35 Pages
  • Team A Service Request WK4 V2
     Service Request SR-ht-003 DBM/380 Principle and Importance of Normalization The database normalization is a technique that is used to organize the contents in the tables for transactional databases and also data warehouses. The normalization is a portion of designing the database with success, without this the database systems may be inaccurate, inefficient, slow, and they may not create the data that is expected. Following a SQL Server installation that is successful a database...
    752 Words | 3 Pages
  • Exam Mis - 1048 Words
    NORMALIZATION The process of normalization begins with a user view of some kind (Report, Table, Screen display, Document, etc...). This view should be about some kind of important data (Invoice, Purchase order, Project details, Registration form, etc....). Example: Consider the following Project Management Report Project Management Report Project Code: PC010 Project Manager: M. Philips Project Title: Database System Project budget: 240.000$ Employee No. Emp. Name...
    1,048 Words | 6 Pages
  • Er Diagram Credit Card Sales
    CREDIT CARD SALES SYSTEM The main entities of a Credit Card Sales System are: 1. Customer 2. Orders 3. Order Details 4. Bank 5. Retailer The main relationships among entities of a credit card sales System are: 1. Customer places an order. 2. Order contains order details. 3. An Order detail has a product. 4. Bank completes the payment. The main assumptions in a Credit Card Sale System are: 1. The Customer and the Retailer have an account in the...
    271 Words | 2 Pages
  • Hotel Assignment - 732 Words
    School of Arts & Sciences Department of Computers & Technology COMP 420 – Database Systems Assignment 3 Holiday Hotel has a database system that records data on the hotel rooms, and the guests that use the rooms. A portion of the database schema is given below. Guest personal data are recorded in the Guest table. The room is registered in the name of one guest, even if there are multiple persons sharing the room. Rooms are of various types (double bed, suite, etc.). The cost of...
    732 Words | 4 Pages
  • c1 sols - 1005 Words
    Chapter 1 Solutions Review Questions 1. What is the purpose of an E-R Model? To identify the entities about which the database should store data, and the relationship among those entities. 2. What is an entity? An entity is any person, place, or thing having attributes, or characteristics, of interest to the organization. 3. Give an example of three entities that might exist in a database for a medical office and some of the attributes that would be stored in a table for each entity....
    1,005 Words | 6 Pages
  • AIS CHAPTERS - 371 Words
    Chapter 3 Data Modeling 3-23. Swan’s Supplies (Normalizing Data) The raw data is as follows: Purchase Order Number 12345 12346 Customer Customer Customer Phone Item Item Date Number Name Number Number Description Charles 01/03/12 123-8209 Dresser, (752) 433-8733 X32655 Baseballs Inc. X34598 Footballs Basketball Z34523 Hoops Patrice 01/03/12 123-6733 Schmidt's (673) 784-4451 X98673 Softballs Sports X34598 Footballs SoccerX67453 balls Unit Cost...
    371 Words | 10 Pages
  • Logical Design Pt. 2
    Logical Design Part 2 CIS 111 August 30, 2013 Hello sirs, my name is , it has come to my attention that there are some misconceptions about the value in normalizing your database. I wanted to write this correspondence to address any concerns that you may have about flexibility while entering your data into the system. This letter is to assure you and the other members of your executive board that you will have some flexibility within your E-R Model. I would like to introduce you to...
    641 Words | 2 Pages
  • System Analysis - 2483 Words
    1 . Answer any five of the questions below. What do your understand by normalization. And also explain advantages and disadvantages of normalizations. 2 . What is meant by "Feasibility Study”? Discuss its importance in system development 3 . Define the term "Data Dictionary". What is the need for a Data Dictionary? 4 . What are various types of maintenance? 5 . Write a short note on any three of the following. a) Data Flow Diagram b) Transaction...
    2,483 Words | 19 Pages
    NCC REQUIREMENT Statement and Confirmation of Own Work Programmer /Qualification name: All NCC Education assessed assignments submitted by students must have this statement as the cover page or it will not be accepted for marking. Please ensure that this statement is either firmly attached to the cover of the assignment or electronically inserted into the front of the assignment. Student declaration I have read and understood NCC Education’s Policy on Academic Dishonesty...
    1,653 Words | 13 Pages
  • DOCUMENTATION V2 - 697 Words
    CAB VEHICLE MAINTENANCE MONITORING FOR HUELAR-PALERMO TRANSPORT SERVICE A Case Study Presented to The Faculty of STI Global City In Partial Fulfillment Of the Requirements for the Theory of Database By: Danizon Montallana Miyelcen Malou Dabu Ely Ynson Mr. Michael Pinero & Ms. Kristine Kay Dalere Project Advisers October 21, 2014 Phase 1 – Project proposal 1.1 Background of the study In 2004, Christian Palermo started a taxi company in Ecoville, Ayala. A...
    697 Words | 4 Pages
  • IT3400 Chapter 5 Assignment
    1. Define each of the following Terms a) File Organization: A technique for physically arranging the record of a file on secondary storage devices. b) Sequential File Organization: The storage of records in a file in sequences according to primary key value. c) Indexed File Organization: The storage of records either sequentially or consequentially with an index that allows software to locate individual records. d) Hashed File Organization: A storage system in which the address for each...
    455 Words | 2 Pages
  • Sample Review of Related Lit
    2.0 Review of Related Literature and Studies 2.1 Introduction This chapter discussed the related literature and studies to assess and evaluate the existing system to see the need for the proposed system. 2.2 Review of Literature 2.2.1 Local Literature Regulating the establishment and operation of pawnshops As stated in the Presidential Decree No. 114 series 1973 Regulating the establishment and operating of PAWNSHOPS, It is hereby declared the policy of the State to regulate the...
    8,602 Words | 27 Pages
  • PT2520 Unit4 Assignment1 Homework
    Unit 4 True/False Questions Indicate whether the following statements are true or false on the student answer sheet. 1 T | Normalization is the process of removing anomalies from database design. 2 T | Not being able to insert data because other data is required is an example of an insertion anomaly. 3 F | An insertion anomaly occurs when you enter data inaccurately. 4 T | An update anomaly occurs when you have to update the same data in multiple places. 5 F | A deletion anomaly occurs when...
    313 Words | 1 Page
  • System Analysis and Design - 415 Words
    Normalization is the process of efficiently organizing data in a database. There are two goals of the normalization process: eliminating redundant data (for example, storing the same data in more than one table) and ensuring data dependencies make sense (only storing related data in a table). Both of these are worthy goals as they reduce the amount of space a database consumes and ensure that data is logically stored. The Normal Forms The database community has developed a series of...
    415 Words | 2 Pages
  • Patient Information system - 2172 Words
    CHAPTER 1 INTRODUCTION The proponents will discuss the summary on how the proponents came up with the ideas of making a Patient Information for Dr. Postres Dental Clinic using Java as a programming medium. We will state the problems that are considered in making this project and how we plan to solve it as an Information Technology Students of STI College – Global City. This chapter also states our objectives, scope and limitations of the proposed project. This...
    2,172 Words | 14 Pages
  • Disadvantages of File Processing System
    DATA: A collection of known facts and figures. May contain text, numbers, images, sounds or videos etc. It doesn’t convey useful information METADATA: Data about data (describes prop and char of other data) INFORMATION: 1. Processed form of data is called Information 2. Processed data to increase knowledge of user e.g Name, Ages Older than 30 * Bit: Smallest unit of data; binary digit (0,1) * Byte: Group of bits that represents a single character * Field: Group of...
    1,758 Words | 7 Pages
  • Erd Explanation - 260 Words
    ERD Explanation DBM/380 January 23, 2012 ERD Explanation There are several levels of normalization such as 1NF, 2NF, and 3NF. The Huffman Driver database was brought to the normalization level of 3NF by following a series of guidelines from the lowest form of normalization, 1NF. The first normalization form level (1NF) consists of the basic rules for an organized database. These are: • Eliminate duplicative columns from the same table. • Create separate tables for each...
    260 Words | 2 Pages
  • Business Intelligence - 1635 Words
    Data mining and OLAP are the most common Business Intelligence technologies. The term Business Intelligence refers to computer based methods to identify and extract useful information from business data. Online Analytical Processing commonly known as OLAP provides summary data and generates rich calculations. OLAP is a class of systems that provide answers to multidimensional queries. OLAP is typically used in business reporting for sales, marketing and various such domains. OLAP enables the...
    1,635 Words | 7 Pages
  • The Normal Forms 3NF And BCNF
    The Normal Forms 3NF and BCNF Yunliang Jiang Housekeeping • HW2 due tonight – Upload a single PDF/DOC file to Compass • Stage 3 due tonight • Midterm tomorrow – During class time. Preview • • • • • • Normalization Solution: Normal Forms Introducing 3NF and BCNF 3NF Examples BCNF Normalization • Normalization is the process of efficiently organizing data in a database with two goals in mind • First goal: eliminate redundant data – for example, storing the same data in more than one table...
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  • Entity-Relationship Diagrams - 8631 Words
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