Question

I have a query that returns users by first name, last name, user id and a date they’ve completed an event.

I want the query to only return one row per user, but some users have completed the same event on multiple dates. I can’t use a distinct becuase the dates are distinct, and I can’t use a group by for the same reason.

how can I have the query return only the latest date on which the event was completed?

Answer 1

You should use group by , and do a MAX on the date field

Something like…

Select firstname, lastname, userid, max(datecompleted) 
from events
group by firstname, lastname, userid

depending on your data structure.