A family of Microsoft relational database management systems designed for ease of use.
You need:
Table for employees
Table for courses
Table for specific course (with a date)
Table to combine the specific course with employee (attend).
An employeeiID and specific-courseID is then added to tblAttend to hold the relationship of 1 employee attending 1 specific course. Those 2 make up the combined primary-key for that table so the same employee cannot be registered twice for the same specific course.
The information in the specific course-tabel (attend) holds every information you can think of for what will happen on that specific course that specific date (like instructor)
You then need to create an employee-form, a course-form and a specific-course form with a subform for the attend-table - linked with the courseID through the link-fields (you find it under Data in properties for the subform). You set the name of the ID in the main-form and the name of the ID in the subform.
The mainform is where you register a specific course on a specific date and the subform is where you select employees (using a dropdown-control). Attend is then filled with courseID through the link-fields and employeeID by your dropdown and if needed any other information in the attend-table which is limited to information that has to do with an employees attendance to a course on a specific date.
When all this is playing you can start thinking about what to get out of this, but now things are much easier. E.g. create a query with all the tables and count how many attend-records that employee has...which tells you how many times he/she has attended. Us that query as a source for a report and you can show each employees attendance...and attendance divided on number of courses in % will show the frequency of attendance.
A general rule is never save data in a database which is summed up somehow. Always calculate when you need it...or else you can end up with a situation where the number has not been updated and thereby is wrong....
Good luck! You have a lot of fun and frustration waiting for you :)