A database has two tables: ORDERS (parent) and ORDERITEMS (child), linked by an ‘order_id’ column (both tables have the same column name). The foreign key constraint includes ON DELETE CASCADE. If a row in the ORDERS table is deleted, what happens to the corresponding rows in the ORDERITEMS table?

Find the inverse of the one-to-one function.f(x) = (x – 3)3

For the given functions f and g , find the indicated composition. You must show your work for question on your work upload in order to receive full credit.  f(x) = -4x + 6, g(x) = 2x + 7 (g∘f)(x)

(Write appropriate SQL commands – you will have three separate SQL statements) 1. (10 points) Add a new column to the INVENTORY table. The column name is ‘Reorder’, and the data type should be CHAR(1), and the default value is ‘N’. Also, it should not be null. 2. (10 points) Add a new record to the INVENTORY table. Refer to the following table structure and a book with ISBN ‘0123456789’:               Note: Quantity has a default value of 0. 3. (5 points) After testing and piloting the INVENTORY table, we no longer need the table. Please remove the table so that it does not remain in the recycle bin.  

Which of the following SQL statements is invalid and will result in an error message? Assume that the BOOKS table currently has no constraints and contains no data. For your information, BOOKS and PUBLISHER tables have a relationship shown below:

Class A has mean 78 and standard deviation 4. Class B has mean 78 and standard deviation 12. Which statement is correct?

A distribution has mean 72 and median 65. Which conclusion is most reasonable?

In Excel’s PV function, why did we type the free cash flow in as a negative number?

What will be the output of the following code snippet?  def minimum(a, b):    return a if a > b else bmultiply = lambda x, y: x * yp = 4q = 7r = minimum(p, q)result = multiply(r, p)print(result)

A college has 8,000 students. A researcher randomly selects 400 students and asks how many hours per week they study. What is the sample?