ISM 6215 - Business Database Systems I Fall 2013 Home Work – 1 (Marks 100) Question 1 - Contrast the following terms. Give one example of each 1. Degree versus cardinality of relationship 2. Required versus optional attributes 3. Data dependence versus data independence 4. Structured versus unstructured data (4*2.5 =10 marks) Answer 1 - Degree; cardinality. The degree (of a relationship) is the number of entity types that participate in that relationship‚ while cardinality is a
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Research Assignment While the database management system terminology has become widespread in India‚ there is a vast space for the adoption of the systems. The market potential still has a significant amount of spread to increase market share. A computer database is a repository of structured data or information and a database management system is a collection of programs that allows storage and retrieval of this data efficiently. Database management systems have undergone significant changes over
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Database Processing‚ 13e (Kroenke/Auer) Chapter 9: Managing Multiuser Databases 1) Database administration tasks have to be performed for single-user‚ personal databases. Answer: TRUE Diff: 3 Page Ref: 396 2) Database administration is more important but less difficult in multiuser database systems than in single-user database systems. Answer: FALSE Diff: 2 Page Ref: 396 3) In general‚ the overall responsibility of the DBA is to facilitate the development and use of the database system
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with smallest form of data on th top of pyramid and biggest form at the bottom of it. Smallest form of data bit and after that characters. Collection of fields forms a records and multiple records forms a file. And multiple files together forms a database which is at bottom of hierarchy as it is bigger form of data. c) Briefly
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Function Functions are basically the exact same as subroutines‚ except that they return a value. That means that the function itself has a type‚ and the function will return a value to the calling subroutine based on the code that it contains. An example of this would be a function that adds two numbers‚ shown below. A function is declared the exact same way as a subroutine‚ except using the "Function" keyword instead of "Sub". To return a value‚ assign a value of the proper type to the function’s
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Introduction to Databases BDS: Connolly‚ Begg‚ Holowczak Pratt/Adamski Elmasri/Navathe (3rded.) Kroenke Book (7thed.) McFadden (5thed.) Mata-Toledo / Cushman Ch. 1 and 2 Ch. 1 Ch. 1 and 2 Chap. 1 and 2 Chap. 1 Schaum’s Outlines Ch. 1 Q: What is a Database ? Answer from BDS: A shared collection of logically related data and descriptions of that data‚ designed to meet the needs of na organization. Answer from Elmasri/Navathe: A Database (DB) is collection of related data - with the
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In the paperwork MGT 380 Week 1 Discussion 1 Implementing Change in Decision Making you will find a right solution on the following task: "After watching the Change is good movie clip‚ list three ways in which it can impact your leadership at work and two ways it can impact your leadership at home or in your personal life. What was the most important thing you learned from the clip? Respond substantively to two other learners." Business - Management Week One: Why Organizational Change?
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Relational Database Design and Implementation for Biodiversity Informatics Paul J. Morris The Academy of Natural Sciences 1900 Ben Franklin Parkway‚ Philadelphia‚ PA 19103 USA Received: 28 October 2004 - Accepted: 19 January 2005 Abstract The complexity of natural history collection information and similar information within the scope of biodiversity informatics poses significant challenges for effective long term stewardship of that information in electronic form. This paper discusses the
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used shortly before Galton’s death. The field of genetics studies biological differences. Human behavioral genetics is a fairly new branch of genetics. This branch concentrates on the influences of both genetics and the environment on the variations in behavior among individuals. Human behavior geneticists often have a difficult task before them. It is exceedingly difficult to define behaviors and study them ethically. For example‚ if one studies intelligence‚ is he studying the ability to score
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implement the system. It provides the visibility in the design and provides information needed for software support. 2 Scope Online Project Marking System is developing for School of Computing‚ University of Portsmouth and used to replace old paper work system and PUMS. OPMS is to build upon the existing web-based project marking system PUMS in order to implement the project marking process and
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