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Solve the following problem-
Problem: Write a Select statement that determines whether the PaymentDate column of The Invoices table has any invalid values. To be valid, PaymentDate must be a Null value if there's a balance due and non-null value if there's no balance due. Code a compound condition in the Where clause that tests for these conditions.
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Show the unix/linux commands that you would use to create a 7x7 matrix of alternating entries of 1's and 0's. It should look like this
Describe and explain Oracle Date and Time Format in details. Provide some Functions used for Date and Time and give some syntax example of their usage. Expand your examples to include some Arithmetic used with Oracle Date.
This assessment item is designed to test your understanding of arrays/arraylists, objects, classes, methods, sorting and searching.
Write a compete PL/SQL program to display the StaffNo,
Prepare the SQL query for each of given requirements. Convert requirement to logic, then to SQL. Illustrate the names of all products which have been sold.
Code SQL statements to update view as follows: change spelling of Mark Tobey to Mark Toby. Design new Transaction for Mark Toby. Suppose you have essential transaction, work, and customer data.
Write a procedure that takes a car registration and returns the most recent date of rental and the maximum rental period for that car. The procedure had the following formal parameters
Provide SQL statements to create the database and populate it with sample data (at least four rows per table).
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.
part 1you are to write a 6 - 7page paper in the apa format about a topic related to this course turn in the final copy
Write a script that declares a variable and sets it to the count of all products in the Products table. If the count is greater than or equal to 7, the script should display a message that says,
question 1. update stock levels when the order is cancelledat times customers make mistakes in submitting their orders
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