I have a servlet/jsp/MySQL web site in production, and
 there are about 2,000 records in the flights table. One of the foreign 
keys is teacher_id. Up to this point, there is a one to many 
relationship between teacher_id and the data in the flights table. I 
need to change the data model to allow for a many to many relationship 
between teacher_id and the data in the flight table. What is the best 
way to do this?<br>
<br>
Thanks,<br>
<br>
Mark