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Businesses today are extremely reliant on large amounts of data for making intelligent business decisions. Likewise, the data warehouses are often structured in a manner that optimizes processing large amounts of data.
Write a two to three (2-3) page paper in which you:
1. Outline the main differences between the structure of a relational database optimized for online transactions versus a data warehouse optimized for processing and summarizing large amounts of data. 2. Outline the main differences between database requirements for operational data and for decision support data. 3. Describe three (3) examples in which databases could be used to support decision making in a large organizational environment. 4. Describe three (3) examples in which data warehouses and data mining could be used to support data processing and trend analysis in large organizational environment. 5. Use at least three (3) quality resources in this assignment. Note: Wikipedia and similar Websites do not qualify as quality resources.
Write a command to list all the employees hired in 2003 and 2004. Sort the rows by the hire_date column in descending order.
Consider following opinion shared by some people: database management systems and data-warehousing techniques are the greatest threat to individual privacy in modern times. What is your opinion?
How can turn a conceptual entity relationship diagram into a logical entity relationship diagram
Create an ERD and relatioal schema in third normal form based upon the following business rules. (Hint: ensure that all attributes are FULLY DETERMINED by the primary key.) Don't forget to place your normalization arrows on your relational schema.
question 1research the definition of a minimal cover. explain it in your own words and give an example. question
Explain in detail with supporting illustrations the six stages of the problem solving process and explain when the choice for using electronic spreadsheets is the preferred tool of choice.
What is a data warehouse and why is REI building one and What are some of the risks or concerns surrounding the creation of a data warehouse
What is meant by a weak relationship? Provide an example. What is meant by weak entity? What do you understand by relationship degree?
Give a practical example when you would move an attribute to another entity type. Describe in detail.
Analyze how the verify method can be used to plan out system effectively and ensure that the number of transactions do not produce record-level locking while the database is in operation.
Explain the differences between the storing data in Access and Excel. Why you would use a spreadsheet over the database?
Design the screen with the actual values. Students have to also create a data dictionary to explain what type of data is expected to display with the given input.
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