Topic: ID User
Some ideas for my problem, I hope you can help me, Thank you for your time and support!
I made a database for the registration of certain units, the database works perfectly, but I have a problem when a user registers a unit since he does not put his employee number, he invents a non-existing employee number, any idea how to be able to control, that they put their assigned employee number.
Example: Valid employee number 2461
Example: Invalid employee number 9999979
Thank you so much!!