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Data Warehouses and Data Marts
Write a one- to two-page (250-500 word) paper that discusses the differences between data warehouses and data marts.
Also, discuss how organizations can use data warehouses and data marts to acquire data.
Prove that Armstrong’s Axioms are sound and complete for FD in-ference. That is, show that repeated application of these axioms on aset F of FDs produces exactly the dependencies in F+.
Several male athletes have reported having growth spurts well into their college years. Why is this phenomenon more likely for males then females?
Create a form (frmUpdateMediaLink) to link the spreadsheet to a table in the database (you can link the spreadsheet manually using the wizard but you will lose 4 points)
Explain about where you are looking--a secure academic database? the open Internet? other locations?
Discuss why many information technology professionals may overlook project cost managment and how this might affect completing projects within budget.
Discuss the advantages of a database management approach to the file processing approach? Give examples to illustrate your answer.Outline the benefits and limitations of the relational database model for business applications today?
Your goal is to develop a database that shall allow ECI to keep track of its business and provide the management with the following information regarding the performance of the business: Complete information about ECI employees, especially salesmen..
Analyze the main advantages and disadvantages of using data analytics within the industry or company that you have chosen
What is a subquery? When is it used? Does the RDBMS deal with subqueries any differently from normal queries? Illustrate with examples different types of sub-query and co-related subqueries (nested etc).
clues 1: Get unique DEPARTMENT from employee table clues 2: Select first 3 characters of FIRST_NAME from EMPLOYEE
Explain the difference between Hash indexes and B+- ree indexes. In particular, discuss how equality and range searches work, using anexample.
Use Hands-on Projects that are in the back of your Chapter to introduce you to the Microsoft SQL Server 2008.
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