IS3280 Data Management Assignment 5 Mapping ER Diagrams to Tables Submit via D2L. You can create your tables using the Table feature in word [or you can use Gliffy‚ Visio…]. The Table should be 1 column and the number of rows equals the number of attributes. Underline primary keys and italicize foreign keys. Use only the box border. The Table name goes above the table. For example: TABLE_NAME PrimaryKey AttributeOne AttributeTwo AttributeThreeForeignKey *the above table has a
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CHAPTER 7: DATA MODELING USING THE ENTITY-RELATIONSHIP (ER) MODEL Answers to Selected Exercises 7.16 - Consider the following set of requirements for a UNIVERSITY database that is used to keep track of students’ transcripts. This is similar but not identical to the database shown in Figure 1.2: (a) The university keeps track of each student’s name‚ student number‚ social security number‚ current address and phone‚ permanent address and phone‚ birthdate‚ sex‚ class (freshman‚ sophomore‚
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database creation‚ manipulation and usage. It will help the students to acquire the theoretical foundation of Database Management Systems. It covers topics ranging from the core concepts of databases to the relational model‚ relation algebra operators‚ ER models‚ ‚ normalization process and concepts relating to various advanced database models‚ and concepts. Thus‚ this is an advanced course‚ which will further develop the knowledge and skill acquired by the students at the basic level. MySQL and Java
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Broadway Entertainment Co.‚ Inc. Case Question Solutions 1. Review the data flow diagrams you developed for questions in the BEC case at the end of Chapter 5 (or diagrams given to you by your instructor.) Study the data flows and data stores on these diagrams and decide if you agree with the team’s conclusion that there are only the six entity types listed in this case and in BEC Figure 6-1. If you disagree‚ define additional entity types‚ explain why they are necessary‚ and modify BEC Figure
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Aspects of Software Engineering CE00325-1-ASE Group Assignment Car Rental System Anahid Ehtemami TP022064 Law Kuo Jian TP018939 Dushan Rajapaksha TP017256 Mohammed Abdulwahab _________________________________________________ Deadline: 25.10.2010 Contents Acknowledgement 3 Introduction 4 Feasibility 5 Schedule feasibility 5 Gantt chart 6 Workload matrix 6 Requirement Analysis 7 Fact finding 8 Questionnaire 8 Interviews 8 Questionnaire Feedback Analysis 9 Interview
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Chapter 1 introduction & tax residence •Direct taxes – taxes paid directly to government (income tax ‚ RPGT) •Indirect taxes – taxes paid to government via 3rd party( sale‚service) •Income tax –scope of charge( S3 of ITA) has been modified by ‘’tax exempted’’ Income tax shall be charged for each y/a upon income of any person accruing in or derived from MY or received in MY from outside MY Income known as revalue gain( capital gain never go for inc tax Person=individual ‚ Co(chargeable
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An entity-relationship (ER) diagram is a specialized graphic that illustrates the relationships between entities in a database. ER diagrams often use symbols to represent three different types of information. Boxes are commonly used to represent entities. Diamonds are normally used to represent relationships and ovals are used to represent attributes. Below are two (2) problems for you to answer. Read the instructions carefully for you to be guided on what to do. After answering the examination
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applicaAons? What is enAty-‐relaAonship (ER) modelling? What are enAty types and enAty sets‚ aRributes and value sets? What are relaAonship types‚ relaAonship sets and roles? What structural constraints are used in ER modelling? What guidelines are used for ER modelling? Conceptual Design of Database
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be specified‚ as well as the data requirements. Functional requirements consist of user operations that will be applied to the database‚ including retrievals and updates. ▪ Functional requirements can be documented using diagrams such as sequence diagrams‚ data flow diagrams‚ scenarios‚ etc. Step 2: Conceptual Design ▪ Once the requirements are collected and analyzed‚ the designers go about creating the conceptual schema. ▪ Conceptual schema: concise description of data requirements of the
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redundant. (For example‚ note that the hourly rental charge of $58.50 is stored four times‚ once for each of the four Cessna C-172 Skyhawk aircraft – check records 1‚ 2‚ 4‚ and 9.) Figure IM5.1 A Poor Table Structure [pic] |[pic] The figures shown in this discussion show the contents of the IM_Discussion database. This database is located on the teacher’s CD. | If you use the AIRCRAFT_1 table as shown in Figure IM5.1‚ a change in hourly rental rates for the Cessna 172 Skyhawk must be
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