of the database applications. 2. What is the role of the database in the IS generic architecture? 3. What is file-based system? Give 2 examples of FBS. 4. What are main limitations of FBS? 5. What is database? 6. What does it mean that database is self-describing collection of interrelated records? 7. What does it mean that data is integrated? 8. What does it mean that database is collection of logically related data? 9. What is DBMS? 10. What are the main categories of database languages
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Database Design Process Database Life Cycle Key points Database design must reflect the information system of which the database is a part Information systems undergo evaluation and revision within a framework known as the Systems Development Life Cycle (SDLC) Databases also undergo evaluation and revision within a framework known as the Database Life Cycle (DBLC) There are two general design strategies exist: top-down vs. bottom-up design centralized vs. decentralized design 2
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Principles of Distributed Database Systems M. Tamer Özsu • Patrick Valduriez Principles of Distributed Database Systems Third Edition M. Tamer Özsu David R. Cheriton School of Computer Science University of Waterloo Waterloo Ontario Canada N2L 3G1 Tamer.Ozsu@uwaterloo.ca Patrick Valduriez INRIA LIRMM 161 rue Ada 34392 Montpellier Cedex France Patrick.Valduriez@inria.fr This book was previously published by: Pearson Education‚ Inc. ISBN 978-1-4419-8833-1 e-ISBN
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What is a database? * A database is a structured collection of data. The data is typically organized to model relevant aspects of reality (for example‚ the availability of rooms in hotels)‚ in a way that supports processes requiring this information (for example‚ finding a hotel with vacancies). * The term database is correctly applied to the data and their supporting data structures‚ and not to the database management system (DBMS). The database data collection
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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 Attribute(s)
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database systems: a practical approach to design‚ implementation and management (5th edition) Description: This best-selling text introduces the theory behind databases in a concise yet comprehensive manner‚ providing database design methodology that can be used by both technical and non-technical readers. The methodology for relational Database Management Systems is presented in simple‚ step-by-step instructions in conjunction with a realistic worked example using three explicit
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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 overview
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on data or data items to supply some information about an entity. What is a Database? A database is an integrated and structured collection of stored operational data used (shared) by application systems of an enterprise Examples of Databases • Medical records • Bank accounts • Stock control • Telephone directories • Stock market prices Universe of Discourse A database is a model of some aspect of the reality of an organisation. It is conventional
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Whatis.com (2004) defines a database as "a collection of information that is organized so that it can easily be accessed‚ managed‚ and updated." In my current job at Wellco Tank Trucks‚ Inc.‚ we do not use any type of databases in the daily operations of our business. My only job that involved regular use of a database was at Chilcutt Direct Marketing (CDM) in Oklahoma City‚ Oklahoma. From February 2003 to June 2004‚ I was an Account Executive of Brokerage at CDM. CDM is a direct marketing company
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A hypermedia database is a computer retrieval system. The database allows the user to access texts‚ video and audio recordings and photographs. Files are stored according to subject. Hypermedia Database Hypermedia database comprises a set of interconnected multimedia web pages. In this type of database‚ information is stored online and the data can be accessed by several users at a time. Hypermedia‚ an extension of the term hypertext‚ is a nonlinear medium of information which includes graphics
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