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 more compositions
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belongs to and describes the attributes. what type of relationships are shown is 1-1 when u get a many to many: make a linking table that resolves the many to many into 2 1-1 relationships. domain entities weak entitiy which term best defines normalization: the process of removing anomolies which is normal form that removes all repeating groups and arrays: normal form 1 which of the follo is normal form that removes transiant dependency: 2nd deletion anomoly occurs when when u remove data that
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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 Processing
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CHAPTER I I. INTRODUCTION Without us noticing it‚ our world has been change by technology in all possible ways Our daily works is now more convenient through the use of high-end devices that are newly developed and some have been updated even before it has been introduced to the public‚ and much more. These developments aim to better utilize the existing resources and maximize their uses to be able to bring out new or better products or outputs. Computerization is synonymous to the word automation
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correct the Primary Key by removing one or more columns from the PK and including them as non-key attribute(s). 5. Check that all necessary Bridge Entities exist and create them if needed. Three: (10 marks) An ERD that corresponds to your Final 3NF Design (solution Two). The ERD may be printed or drawn by hand. Show only the name of the Entity‚ the PK‚ all Foreign Keys and lines joining the Entities. You should use the Crow’s Foot method. Four:
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has to be drawn using the Chen notation and the logical relational schema is needed to produce which defines the relationships between different tables. Both conceptual data model and logical relational schema have to be checked with 3NF‚ third normalization form. The considered tables should be created and inserted in DBMS Microsoft Access with some extra required information. Queries‚ reports and forms have to be produced with the sample data by writing SQL coding for given A1 to A6 from the Sample
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Data Analysis And Design BTEC HIGHER NATIONAL DIPLOMA Assignment Institute Name : IDM Computer Studies Pvt. Ltd. Unit Name : Data Analysis and Design Unit : Unit 13 Assignment Title : Understanding and Analysis‚ Design and Implementation of Database system. Date given : 10th May 2010 Date to be submitted : 20th July 2010 Lecturer : Mr. T. Shanakr Rational The objective of this assignment is to assure that the
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and association relationships. 5. What is a sequence diagram and why is it significant? 6. What are the differences between analysis modeling and design modeling? 7. What are the basic characteristics are of object-oriented systems? 8. What is normalization and denormalization? What are the key issues in deciding between using a normalized databases and denormalized databases? 9. What is meant by service-oriented architecture? 10. How do you know when "enough is enough"? What should you look for when
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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 words
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Data Anomalies Normalization is the process of splitting relations into well-structured relations that allow users to inset‚ delete‚ and update tuples without introducing database inconsistencies. Without normalization many problems can occur when trying to load an integrated conceptual model into the DBMS. These problems arise from relations that are generated directly from user views are called anomalies. There are three types of anomalies: update‚ deletion and insertion anomalies. An update anomaly
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