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Problem #1
Display all the columns from the Orders table that were paid with a Visa Card and have been shipped to the customer (hint: not a null). Order results by the Item Price in descending order.
Problem #2
Display the CustomerID, and customer's name (show the customer's name as the LastName concatenated to the FirstName separated by a comma and a space). Only show those customers that have the word/partial word "mail" somewhere in the EmailAddress. Order the results by the customer's last name in ascending order.
Problem #3
Display all the LastNames from the Customers table and any associated OrdersIDs from the Orders Table. Show the LastName even if they do not have any associated orders. Order the results by LastName in ascending order.
Problem #4
Display the CustomerID from the Orders table and the sum of the associated ItemPrice multiplied by Quantity using Gross Sales (with a space) as the column name from the OrderItems table. Only show those orders where the Gross Sales is more than $500.00. Display the results in descending order by the gross sales.
Problem #5
Display the LastNames from the Customers table and the OrderIDs from the Orders table for all orders that have a ShipAmount that is greater than the average ShipAmount for all Orders. (**Solve using a subquery).
You have been asked to develop a database utilizing only the written problem description given by the client. In reviewing the description.
Prepare the example of table which is in first normal form but not in second normal form and example of a table which is in second normal form but not in third normal form.
Create a 2-3 page (350 words per page) examining the use of databases in organization. Explain what database applications are utilized (Microsoft Access, DB2, Oracle, etc.).
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.
Consider the relational database described in Problem Give expressions in tuple relational calculus and domain relational calculus for each of the following queries: Find all the companies that have offices in all the cities in which company C2..
ER Diagram of cardinality and modality bank management system and discription of bank management system
Give a primary key for each relation. Are there any relations for which there is an alternate candidate key which you have not chosen as the primary key? Why or why not?
Consider the EER diagram for a car dealer in the figure below. Map the EER schema into a set of relations. For the VEHICLE to CAR/ TRUCK/ SUV generalization.
Purpose of this hands-on computer exercise is to have you learn how to use Microsoft Access to: create a database table, enter data into the table, create a report based on the data, and print the table and the report.
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.
You are interested in analyzing some hard-to-obtain data from two separate databases. Each database contains n numerical values.
What is the time required to read a ?le containing 100,000 records of 100 bytes each in a random order? To read a record, the block containing the record has to be fetched from disk. Assume that each block request incurs the average seek time and rot..
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