Numbers are names, too! A mistake in the 11 November quiz (1644)

The 11 November quiz contained a mistake, due mostly to incomplete "specifications" in the question text. The question stated that I created a table like this:

CREATE TABLE plch_employees (
  employee_id INTEGER,
  last_name VARCHAR2(100)
)

and then ran a block at 2 AM each morning that worked with data from this table. I scored as correct the following choice: "Oracle will raise a NO_DATA_FOUND exception if all the employee last names have no more than 10 characters." and my explanation for this choice stated: "If I manage to populate the collection with rows from my table, then Oracle will certainly raise NO_DATA_FOUND when it tries to execute the numeric FOR loop. This is so because the index values are strings and not integers, so there is no possible way that the collection is sequentially filled from index value 1. As a result, this code will raise a NO_DATA_FOUND exception - unless the employees table is empty." Well....many, MANY players had a field day with this choice. They were especially entertained by my "no possible way" phrase. You see, I never stated any rules about an employee name. Consequently, the names in the table could all be integers (1, 2, 3, etc.) and in this case, the block would not raise NO_DATA_FOUND. And, even more sadly, this mistake affected TWO of the choices for the very same reason. The choice "I will see the employee IDs for every row in the employees table." could be true if all employee last names were integer values starting with "1" and proceeding sequentially to the number of employees in the table (1,2,3...). Silly me - and very sharp of so many players for noticing this gap in my specifications and therefore the possible behaviors of my code. I am, once again, impressed at the close attention paid by so many PL/SQL Challenge players to these quizzes. Assuming you pay the same amount of attention to your application code, I am certain those applications are of the highest quality! I will give everyone credit for both these choices, and change the question text so that it is clear that names contain characters. From all those who notified me of my mistake, Oleg Gorskin was selected randomly to win an O'Reilly Media ebook. Congrats, Oleg! Any other comments/objections to this quiz? Cheers, SF