I have a training DB that I use to track employee skills and what they were trained on, etc. I have a table called "tblEmployees" where I store the employees. I have a table called "tblTrainingRecords", and then a table called "tblTraining Participants". The tblTrainingRecords is the master table where the training classes are stored. And then the tblTrainingParticipants is where the employees are stored for the classes. What I need to do is find out which employees did not have training for a specified training class. If I store all the employees that had classes in the tblTrainingParticipants, how can I find out which employees did not have training? I hope this makes sense.