Tell me Wilson's date of registration.
select date_of_registration from students where personal_name = "Wilson"
Tell me the date of his latest logon.
select date_of_latest_logon from students where personal_name = "Wilson"
How about the dates of the latest logon of the students with family name "Jaskolski" or "Langosh"?
select date_of_latest_logon from students where family_name = "Jaskolski" or family_name = "Langosh"