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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.
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.
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.
What is an SQL injection attack? Explain how it works, and what precautions must be taken to prevent SQL injection attacks.What are two advantages of encrypting data stored in the database?
If the value for the ListPrice column is a negative number, the stored procedure should raise an error that indicates that this column doesn't accept negative numbers. Similarly, the procedure should raise an error if the value for the DiscountPer..
Write a SQL statement to display the First and Last name of students who have the Status greater than 1 and less than 10. Use BETWEEN.
Write summary query which uses CUBE operator to return LineItemSum (which is the sum of InvoiceLineItemAmount) group by Account(an alias for AccountDesciption).
How to select the primary key from the candidate keys? How do foreign keys relate to candidate keys? provide examples from either your workplace or class assignments
Write a SQL Statement to create a View called vwEmployeeTerritories that will do the following: Return all Employees and their Territories (use INNER JOIN).
An ER diagram for the system. Show all entities, relationships, cardinalities and optionalities. Also, include all intersection entities. You must use the Finkelstein methodology as per the study book and tutorials.
Write a perl subroutine for temperature conversion named 'convert_temp'. It should be able to handle both Fahrenheit to Celsius conversions as well as Celsius to Fahrenheit conversions.
Can we offer an example of a Query in which we can use a parentheses to affect the order of execution in which the WHERE Clause has both AND and OR Logical Operators?
SELECT DISTINCT CMDclient.'Client Code SCA' as GuestCode, CMDextras.ArrivalDate as arr, CMDextras.DepartureDate as dep, CMDapr.FirstName as fname, CMDapr.Surname as lname
Write a PL/SQL block that displays the last name and salary of the following people. Each of these can be done separately as PL/SQL, first to test and get the output lines then encapsulated in the procedure.
Write SELECT statement which returns those rows with the balance due greater than 1000. Sort result set by InvoiceTotal, with largest invoice first.
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