It can be done in one way or another, but the question is why?
- If your ID is an autonumber PK field it's not really supposed to be used as meaningful data.
- putting multiple values in a field is not a grand idea either, in most cases. Only once in many years of Access have I ever encountered a situation where it was the solution.
- with multiple values in a field comes the hassle of trying to do anything with the group or its elements
what it basically does is record how many times the user logged in.
Not according to what you're showing. That is ID 1 and ID 3 (basically, records 1 and 3), which is meaningless.
Is what you show the real goal and setup or are you disguising the real situation? I ask because this happens a lot in forums.
BTW, ID makes a poor field name as you will find out when you end up with a bunch of them.
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.