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Indicate the changes you need to make to the design of the Premiere Products database to support the following situation: There is no relationship between customers and sales reps. When a customer places an order, it may be through any sales rep. On the order, identify both the customer placing the order and the sales rep responsible for the order.
Assume that data warehouse consists of three dimensions time, customer, and cell phone plan, and two measures number of calls and cell phone bill. Sketch a schema diagram for above data warehouse using star schema.
Write a SELECT statement which returns three columns: VendorName, InvoiceCount, and InvoiceSum. InvoiceCount is the count of the number of invoices, and InvoiceSum is the sum of the InvoiceTotal column.
Create a function that returns the day of the week for a specified date. Create a trigger that displays the message "Emp table updated" when an update to the employee table increases the employee's basic salary.
You have a file which contains credit card records. Each record contains field for the card number, expiration date, and name of card holder. Explain what primary problem you try to solve is.
Developers have noticed that EMP table doesn't have an assigned primary key. EMP_ID column has been selected to be the primary key.
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?
Write the procedure named Get_frequencies which constructs character frequency table. Input to procedure must be a pointer to the string, and pointer to array of 256 doublewords.
Database designers stated following dimension of "miniworld"- to be represented in Company Supplier-Part database: company is organized into departments. Each department has unique name, unique number.
Compare the two non-sequential file structure models. What advantages does the first one have over the second and what advantages does the second have over the first?
Explain the information-gathering techniques and design methods you would suggest to use for project. Recognize the key factors that help ensure the information required for the project.
What is meant by a weak relationship? Provide an example. What is meant by weak entity? What do you understand by relationship degree?
Write an SQL query to get the author of the book "The Alchemist"
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