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Explaining the role of metadata in data acquisition process
Question 1) You are a vice president of marketing for a nation-wide appliance manufacturer with three production plants. Explain different ways you would tend to analyze your sales. What are the business dimensions for your analysis?
Question 2) You are a manager for data warehouse project at the retail chain with stores all across the country and users in every store. How would you ensure that all the details essential to decide on DBMS are gathered during the requirements phase? Write a memo to the Senior Analyst directly responsible to coordinate the requirements definition phase.
Question 3) You have recently been promoted to administrator for the data warehouse of a nationwide automobile insurance company. You are asked to prepare a checklist for selecting a proper vendor tool to help you with the data warehouse administration. Make the list of the functions in the management and control component of your data warehouse architecture. Use this list to derive tool-selection checklist.
Question 4) As a data acquisition specialist, what types of metadata can help you? Select one of the data acquisition processes and explain the role of metadata in that process.
Question 5) What is a factless fact table? Design a simple STAR schema with a factless fact table to track patients in a hospital by diagnostic procedures and time.
Compare activity (quite theoretical) of the disk (in number of bytes) required for each of both relational. Write down the advantages and inconveniences of new relational scheme.
Draw the E/R diagrams for the business rules
Evaluate whether the use of a distributed DBMS structure is appropriate and identify the optimization techniques that should be factored in to enhance the operations of the database in your design.
What is meant by a weak relationship? Provide an example. What is meant by weak entity? What do you understand by relationship degree?
Identify two possibly mispriced bond issues, one overpriced and one underpriced. and graph the bond yield to maturity (YTM) on the y-axis of an XY-scatter plot, with the bond to maturity in years on the x-axis.
Explain why data flow diagrams are developed in a hierarchy? What are the names of some levels in the hierarchy?
our current database uses dictionary-managed tablespaces. In running various performance tuning scripts, you have discovered that one of these tablespaces seems to have run out of space long before you calculated that it would.
Your job is to create a database management system for bike shop who ‘buys' and ‘sells' new and second-hand bikes, and also parts of bike. Bike is constructed with parts while part can be fitted to different bikes.
Your company has put in the request for a new database system and you have been tasked with architecting the security associated with this new project.
Energy in the home, personal energy use and home energy efficiency and Efficient use of ‘waste' heat and renewable heat sources
Produce an Entity-Relationship diagram which represents the above activities of the insurance company. Indicate the names and degrees of all the relationships. Give appropriate attributes for each entity shown, and identify the primary key for eac..
Create tables in 3NF. As you create the database, include different codes for at least three of the fields. Use sample data to populate fields for at least three records in each table.
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