How can I return the last date by the last 12 months (SQL Access)

Question

I don't know how to return the last date of the month. Currently I have only this SQL statement which returns the last 12 months:

SELECT *
FROM KENNZAHL
WHERE ID=325 And Datum>=DateAdd("m",-12,Date())
ORDER BY Datum DESC;

It is good, but I need only the last date of these 12 months. Do anyone has an idea?

ps: I'm using ms access 2010.

for example:

Result:

ID  | Datum
325 | 2017-01-31
325 | 2016-12-31
325 | 2016-11-30
325 | 2016-10-31
325 | 2016-09-31
.....

Answer 1

The maximum date per month:

SELECT MAX(Datum)
FROM KENNZAHL
WHERE ID=325 And Datum>=DateAdd("m",-12,Date())
GROUP BY YEAR(Datum), MONTH(Datum)
ORDER BY YEAR(Datum) DESC, MONTH(Datum) DESC;

Answer 2

If there´s only one entry with that last date you could use

SELECT TOP 1 *
FROM KENNZAHL
WHERE ID=325
ORDER BY Datum DESC;