April 1, 2015
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DataBase Oracle SQL You are to develop a database design (both conceptual and logical) for an appropriate business situation of your choice, and then implement and subsequently query an ORACLE database that is derived from your database design. There are two stages to the work you need to undertake. Instructions files attached: Tasks: You are to develop a database design (both conceptual and logical) for an appropriate business situation of your choice, and then implement and subsequently query an ORACLE database that is derived from your database design. There are two stages to the work you need to undertake. Stage 1 (Scenario and Conceptual Database Design): Task 1.1: Selection of the case upon which the database design and implementation is to be based You need to identify a suitable case study from which to derive your database requirements. This may be a situation based on a company with which you are familiar or in which you are (or have been) employed, or may be one (or based on one) that you have read about within the trade or academic literature or identified from their web presence. You need to ensure that your business situation is suitably complex to provide you with at least four strong entities, and at least one specialisation: generalisation structure, yet suitably scoped so as to not require a huge quantity of resultant tables (i.e., normally no more than 15) and subsequent input of sample data for querying purposes. It must not be based on a library (video, book, CD or film) and not just solely about orders of products. Once researched and identified, a written scenario needs to be produced that (a) provides relevant background information on the organisation (e.g., its purpose, its principal operations/structure, its products/services, its target markets, etc.), and (b) provides an overview of what operations a database would need to support. Your scenario will probably be no less than one side of A4, but no longer than three slides of A4. Task 1.2: Provide a conceptual database design for your scenario & the list of enterprise rules being modelled. The second task is to develop an EER Diagram that captures the detailed requirements for the database system that you identified within the scenario you wrote to satisfy Task 1.1. The EER Diagram needs to show any weak and strong entities, the primary keys for strong entities, and any relationships between entities (including any generalisation:specialisation structures). *:* relationships must be decomposed, and any actual traps identified should be eliminated using appropriate methods. For each entity, there should be an associated written list of all the attributes that the entity possesses which are not written on the EER Diagram. Any assumptions made during conceptual database design (i.e., anything that you assume that is not written in your Task 1.1 scenario) should be listed. As well as the conceptual database design, you also need to provide the exact list of enterprise rules that your EER Diagram is diagrammatically representing. (Every relationship will need at least one enterprise rule, depending on its multiplicity and degree. Each binary relationship will typically have two enterprise rules associated with it, for instance.) Stage 2: Logical Database Design and Oracle SQL Implementation/querying Task 2.1: Provide a Logical Database Design for your scenario From your conceptual database design, derive a corresponding set of well-normalised tables. Remember to indicate all primary and foreign key fields for each of the tables using suitable and consistent notation. All key and any non-key attributes should be listed within each table. Task 2.2: Create the tables using Oracle DBMS You need to create all the tables that you identified within your logical database design. Make sure the appropriate fields are defined as key, and that other suitable data integrity rules are enforced. Each of your tables should contain your user name as part of the table name. E.g. if your user name is ‘mit10sf’, then if you needed a Car table then you would create a table ‘mit10sfCar’. (Hint: make sure you create the tables in an appropriate order – for instance, those that have foreign keys cannot be created first – why? Think about it!). Task 2.3: Create the four most useful indexes on your tables You need to create a total of FOUR appropriate indexes on the tables using the CREATE [UNIQUE] INDEX statement. (Hint: it may be useful to consider what queries you wish to perform in Task 2.5 first, and don’t forget that primary keys don’t need any user-defined indexes as these are provided automatically by Oracle). Write a short explanation as to why you decided to create each particular index. Task 2.4: Data Population Populate your Oracle tables with some fictitious yet appropriate test data (about FIVE records per large table and TEN records per small table (or as many rows as is relevant) should be enough). Task 2.5: SQL Query writing Define and run SIX queries of your choice (but appropriate to the scenario). Each query should require TWO or more of the following querying facilities, (and all of these facilities should be used at least once in your set of queries) and should be properly justified as to why the query would be useful to your case study organisation: o Selection of particular table columns o Inner Join of at least 2 tables o Outer Join of at least 2 tables o Use of count and/or another similar mathematical expression o Use of a sorting/ordering facility o A condition using “”, LIKE etc. o A condition using IN, NOT NULL, or similar. o A sub-query ? Your case scenario, the list of enterprise rules being represented within your EER Diagram, and the whole conceptual database design. ? The logical database design that follows from your conceptual database design. ? A print out of each of the tables (i.e., the extension of each table) that you have created in ORACLE and the SQL code required to create them (including the code for the integrity rules). ? A print out of the SQL code required in order to create the four indexes. You should provide a short written section justifying your choice of indexes. ? A print out of each of the six queries you devised, showing both the SQL query statement and the query result. You should provide a brief explanation of what you expect each query to achieve and why you think this query is relevant to your case scenario. ORDER THIS ESSAY HERE NOW AND GET A DISCOUNT !!!

DataBase Oracle SQL   You are to develop a database design (both conceptual and logical) for an appropriate business situation of your choice, and then implement […]
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April 1, 2015
Published by admin at April 1, 2015
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business model

business model Paper instructions: For this Forum, you will need to choose a business that you wish to start and begin to develop the business model. […]
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April 1, 2015
Published by admin at April 1, 2015
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History of Technology & Accessibility

History of Technology & Accessibility Paper on History of Technology & Accessibility. We are using “Technology & Society by Jan L.Harrington” APA style 6th edition is […]
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April 1, 2015
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effective use of databases

effective use of databases Research Design Construct a poster Display your poster, Demonstrate effective use of databases to find valid sources of information Demonstrate an understanding […]
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April 1, 2015
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Concepts in Patient Care

Concepts in Patient Care choose Slim disease and about 200 word.Second part can be resourced from internet but you should put the reference and speak about […]
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April 1, 2015
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contemporary problem from a Social Science

contemporary problem from a Social Science Evaluate the following contemporary problem from a Social Science (Economics) perspective: Why have some countries who pursued outward-oriented policies become […]
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April 1, 2015
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enviornmental law

enviornmental law COMPATIBILTY BETWEEN INDIAN ENVIORNMENTAL LAWS AND INTERNATIONAL CONVENTIONS MAIN BODY 2 BACKGROUND CHAPTERS 1) INTERNATIONAL OBLIGATION +INDIAN RATIFICATION 2) INDIAN CONSTITUTION AND ENVIORNMENTAL LAWS […]
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April 1, 2015
Published by admin at April 1, 2015
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Data Mining

Data Mining Paper instructions: Assignment 4: Data Mining The development of complex algorithms that can mine mounds of data that have been collected from people and […]
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April 1, 2015
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Paper instructions: Review the Managing Technology at Genex Fuels mini case.

Paper instructions: Review the Managing Technology at Genex Fuels mini case. In a two to three page APA paper (excluding title and reference pages), address the […]
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