Who needs a Database? Redundancy: It refers to storing the same data in more than one place in the database Primary Key: constraint uniquely identifies each record in a database table. Primary keys must contain unique values. A primary key column cannot contain NULL values. Each table should have a primary key, and each table can have only ONE primary key. SQL: is a standard language for accessing databases. Foreign Key: is a column or combination of columns that is used to establish and enforce
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ITCS215: Lesson Three Worksheet | Student Name: Instructions: This worksheet will assist you in completing your assignments for this week. Save this worksheet as lastname_Lesson3.docx and submit. You are required to complete all sections indicated by red brackets. You will replace the red brackets and text with the indicated material. For example, for the “Student Name” section above, a completed response would look like this: Student Name: When responding with text, please
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Logical Design, Part I Wayne Murphy Strayer University Introduction to Relational Database Management System CIS111019VA016-1132-001 Jean-Robert Bokino January 11, 2013 Logical Design, Part I In this assignment, I will write a two to three page paper titled “Logical Design, Part 1” whereas I am a recently hired consultant for ACME Global Consulting to procure requirements for a large database. In this scenario, “Logical Design, Part 1”, I will develop a database management systems to convince a
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Chapter 3 and 4 and Relational Algebra Chapter 3: 1. Consider the relation (20 points): PERSON_2 (Name, Sibling, Shoe_Size, Hobby) Assume that the following functional dependencies exist: Name Sibling Name Shoe_Size Name Hobby a. Describe deletion, modification, and insertion anomalies for this relation. Consider the following relation: Name Sibling Shoe_Size Hobby Jones Fred E Model boats Jones Fred E Scuba Diving Jones Sally E Model boats Jones Sally E Scuba Diving
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Dealing with Missing Information in a Data Warehouse Today businesses are investing many resources in building data warehouses and data marts to obtain timely and actionable information that will give them better business insight. This will enable them to achieve, among other things, sustainable competitive advantage, increased revenues and a better bottom line. In the early '90s, data warehousing applications were either strategic or tactical in nature. Trending and detecting patterns was the
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Microsoft-Access Tutorial Soren Lauesen E-mail: slauesen@itu.dk Version 2.4b: July 2011 Contents 1. The hotel system................................................... 4 2. Creating a database ............................................. 6 2.1 Create a database in Access ............................. 6 2.2 Create more tables ......................................... 10 2.3 Create relationships ....................................... 12 2.4 Look-up fields, enumeration type ................
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Using Microsoft Access Getting Started Using Microsoft Access Microsoft Access is a computer application used to create and work with databases. In computer jargon that means it’s a Database Management System or DBMS. So what is a database? A database is basically a collection of data or pieces of information. Whether you know it or not, you use databases all of the time. Some examples of commonly used databases might be: • • • • Address book Library catalogue Telephone directory Stock list
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Assignment 2: Database Design and Data Modeling Joesph Thomas 18 November 2014 IT525-01 Database Design and Data Modeling Professor: Jon McKeeby, DSc. Kaplan University Question 1. Definitions a. Business Rule: These are used to provide consistent control of the application’s data access by providing dependencies and relationships between system processes and the application. An example would be when you click print, the application automatically prints to the default printer set by
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Tasks | Team Member Responsibilities | Assessment | Grading Rubrics Objective The project for CIS336 is designed to touch all aspects of the fundamental concepts of database design and logical data modeling covered during the class. The project is team centered and each team will be responsible for designing, developing, and demonstrating the functionality of a database created based on a defined set of business specifications. At the end of the session
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account. As such emails from other addresses may not be responded to. 3.0 CALENDAR COURSE DESCRIPTION This course provides the students with an introduction to the core concepts in data and information management. It is centered around conceptual data modeling techniques, converting the conceptual data models into relational data models and verifying its structural characteristics with normalization techniques. The course will include coverage of basic database administration tasks and key concepts of
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