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Develop a Context Diagram and a System Level Data Flow Diagram , make sure you properly identify all the components. Develop an ERD as well making sure you properly label the Entity name, the association between entities, label the associations, and identify the cardinality. Do NOT include attributes or primary and foreign keys in the ERD. Case Study: - Write down any assumptions you make when diagramming!
Make a select query with a calculated field for age, to list only guests between 20 and 40 years of age! Make sure to enter a range of ages in your table so you have something to display.
Discussion about Database Applications.
Distinguish between packet switching and circuit switching: Give three advantages and three disadvantages of each one.
How to perform document classification using tools in WEKA
Discuss iterative design as it relates to databases overall. Determine whether one must design a database iteratively or design the entire database all at once. Provide a rationale for your answer
An automotive service center or dealer wants to improve its services by using database management systems (DBMS) and data mining. What tables are needed in such a database and how could it help improve their services?
Draw an ERD containing the order and customer entity types connected by a 1-M relationship from customer to order. Choose an appropriate relationship name using your common knowledge of interactions between customers and orders.
Determine if you should reject or accept the following dataset if the true value is 6.272 at both 95% and 99% confidence scenarios: [3.991, 1.207, 3.972, 4.038, 3.836, 3.492]. Show work.
What does the exec above produce in terms of results. If you wanted companies that had 'Corp' in their name how would you code the EXEC statement - What does the exec above produce in terms of results. What would happen it you miss coded the maxim..
What is meant by a weak relationship? Provide an example. What is meant by weak entity? What do you understand by relationship degree?
Develop a specific and detailed discussion about the ETL process is to be used to move data from the OLTP environment to the data warehouse - Create a star schema and the DDL to create the Star schema for the data warehouse.
Using Internet as the research tool for extra information not presented in text, describe why application roles are important part of the security model for databases.
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