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 tests
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91.3902 Database Systems Assignment #1 1. Discuss the role of a high-level data model in the database design process. High-level data models assist in conceptual design and helps express data requirements of the users and includes detailed descriptions of the entity types‚ relationships‚ and constraints. The high-level data model is also used as a reference to ensure that all users’ data requirements are met and that the requirements do not include conflicts. 2. List the various
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Database Concepts Terminology In general‚ there are many acronyms and a lot of terminology used throughout the entire Information Technology (IT) field that is not used anywhere else. In this paper‚ I will briefly describe the following five terms: Online Analytical Processing (OLAP)‚ Data warehouse‚ data mart‚ three-tier architecture‚ and Active Server Pages. Online Analytical Processing OLAP "On-Line Analytical Processing - A category of applications and technologies for collecting‚ managing
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Access Case: Dentist’s Office Brief: You will create an Access Relational Database for a dentist’s office. Database Objects: Tables: 1. Patients – keeps a track of patient information (Create at least 7 patients). 2. Dental Procedures – The dentist has 5 procedures. Procedure No. Procedure Type Rate 1 Cleaning Rs.1000.00 2 Crown Rs. 2000.00 3 Filling Rs. 2000.00 4 Root Canal Rs. 3000.00 5 X-Ray Rs. 700.00 3. Appointment – keeps a track of the each appointment‚ Patient‚ Date
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Test tube Mortar pestle Dilute HCl Disodium hydrogen phosphate NH4OH AlCl3 NaOH Cobalt nitrate Ammonium carbonate Preparation of the sample: Ten of marketed products (tablets/ capsule) is taken and crushed in mortar pastle. This powder is used as a sample through out the experiment. Sample is taken‚ then dilute HCl is added‚ when dissolved the solution then filtered the sample‚ which is a stock solution. Test
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Arizona State University W. P. Carey School of Business CIS 360 The NorthWind Database Tutorial PART 3 – Subqueries & Joins In this lesson of the NorthWind SQL tutorial‚ you will learn... 1. To write queries with subqueries. 2. To select columns from multiple tables with joins. 3. To select records from multiple tables with unions. Subqueries Subqueries are queries embedded in queries. They are used to retrieve data from one table based on data in another table. They generally are used when tables
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Literature Search To identity relevant literature for this report I searched three criminology databases (AGIS‚ CINCH and Criminal Justice Abstracts)‚ two criminology journals (British Journal of Criminology and the Australian and New Zealand Journal of Criminology)‚ two social work journals (Australian Social Work and The British Journal of Social Work) and one general database (ProQuest) using a combination of the following key terms: recidivism‚ meta-analysis‚ criminology‚ community‚ systematic
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CHAPTER 1: Introducing Database System LEARNING OUTCOMES TOPIC At the end of this chapter‚ students should be able to: DATABASE CONCEPT BSIT 201 Explain what is data management Differentiate manual file system and computerised file system with database system INTRODUCING DATABASE SYSTEM CHAPTER 1 Define database system‚ database and database management system List the functions‚ advantages and disadvantages of database management system PREPARED BY: YEW CHERN
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Databases in My Organization CIS319: Computers and Information Systems Abstract Databases have been in use since the early days of computing programs. An Information Technology services company‚ such as Getronics‚ not only utilizes databases for information and record management‚ it earns revenue by providing database management services. Getronics uses Microsoft SQL Server 2000 as its database software. The clients that contract Getronics for Information Technology services rely and
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MODERN DATABASE MANAGEMENT - Database o An organized collection of logically related data. o May be any size and complexity. - Data o A stored representation of objects and events that have meaning and importance in the user’s environment. o Become useful when placed in some sort of context. o Structured • Facts such as the customer name‚ address‚ and telephone number. • The most important structured data types are numeric‚ character‚ and dates. • Stored in tabular form • Found
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