Tables :: Cross Join TABLE - All Combinations

I am trying to create a cross join or Cartesian product TABLE, not a query.

I am creating a training database. For each and employee and each training event, I want to know - is this event required, who approved it, and when was it completed. The table I envision looks like this:

Code:
EMPLOYEE_ID EVENT_ID REQUIRED APPROVER EVENT_DATE
1 1 Y WPD 9/5/14
1 2 N

I currently have 39 employees and 473 events - 39*473 = 18447 records

I was able to make a cross join query and use make table, but whenever I add a new employee or event, if I update the make table query I will lose all my existing data.