Suppose that you are writing a stored procedure to check the validity of the intersection table. Specifically, for each customer, your procedure should read the customers transaction and determine the artist of that work. Given the artist, your procedure should then check to ensure that an interest has been declared for that artist in the intersection table. If there is no such intersection row, your procedure should create one. How will you set the boundaries of your transaction? What isolation level will you use? What cursor types (if any) will you use?