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1. Give at least three reasons why ETL functions are most challenging in a data warehouse environment.2. Identify at least five major types of the major transformation tasks and give an example of each.3. Describe the entity identification problem in data integration and consolidation & suggest a resolution to this problem.4. Explain the need for key restructuring.5. Explain the sparse nature of the data in the fact table.6. Differentiate between fully additive and semiadditive measures.7. Explain multidimensional analysis.8. Discuss at least two reasons why feeding data into the OLAP system directly from the source operational system is not recommended.9. What are the types of statistics collected for monitoring the functioning of the data warehouse?10. Describe at least six different types of action for growth planning prompted by the statistics collected.
Perform the conceptual database design using Entity-Relationship model. You must submit the Entity-Relationship diagram of your database and develop queries in the target DBMS
Construct a query that can be used on a report for determining how many days the customer's invoice will require payment if total amount due is within 45 days. Provide a copy of your working code as part of the paper.
An enterprising group of entrepreneurs is starting a new data storage and retrieval business, StoreItRite, Inc.
Composite and multi-valued attributes can be nested to any number of levels.
Investigate how databases solve multiple concurrent data management issues comprising lost updates, deadlocks and different kinds of lock management styles.
Sketch an object-oriented model for a small private airport database that is used to keep track of airplanes, their owners, airport employees, and pilots.
Relational Algebra- The database used for this question is a very simple one with the following schema: (Primary keys are bold, foreign keys are underlined)
Recommend at least three (3) specific tasks that could be performed to improve the quality of datasets, using the Software Development Life Cycle (SDLC) methodology. Include a thorough description of each activity per each phase.
The first part is to create a database and some tables which will be appropriate for a home-budgeting application. That portion of the assignment should be completed from the MySQL console command line.
Name four attributes that you can use to define a data flow in the bus information system. Name four attributes that you can use to define a data store in the bus information system.
Integrity constraint prevent from happening when data is inserted in table which contains this constraint? Let INSERT, UPDATE, and DELETE actions on both child and the parent.
internship at Mountain View Realty, a real estate firm that focuses in the North Utah County area. The previous intern developed a spreadsheet listing houses listed and sold during the last several months. She included addresses, location, list pr..
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