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Question 1: Describe the basic features of the RDB model
Question 2: Discuss their importance to the end-user and the designer.
Describe every problem in depth with examples.
Hhow can you change column name or what is a different way to write statement in SQL so it displays the amount column as money.
1.modify the database by adding an additional column deleteddate to those tables that represent entities that could
vehiclerentaloz data warehousevehiclerentaloz is a large chain of vehicle rental company over 500 stores distributed
Identify and describe three criteria that should be used to evaluate the selection of a database management system. Describe how an organization should use each criterion to evaluate database management system selection.
You have been requested to give preliminary information on the data requirements for a GIS which is to be used to hold inventory of continental scale vegetation maps for coarse scale land surface
Webster Library wants to know how many green books it has. Out of the 500 shelves of books, 3 shelves were selected. These shelves hold 150 books each. 54 of the books sampled were green.
imagine that you are the administrator for a small accounting company which currently employees 200 people. the ceo
data mining the development of complex algorithms that can mine mounds of data that have been collected from people and
Design the Update trigger on Part table which raises an error string if Count field of updated row has a higher value than value prior to Update.
Create an XML file with markup tags and some sample data to represent a list of invoices. Include the XML tags for two invoices in the list. Also, assume the invoices are created from a database whose tables are shown in the following database rela..
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+.
write a 200- to 300-word short-answer response for the followinga motor vehicle maintenance center wants to improve its
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