Acces Query Hulp (Opgelost)

SELECT curs_dat AS Datum, COUNT(curs_dat) AS Aantal
FROM cursus
GROUP BY curs_dat
HAVING COUNT(curs_dat) >=1;

SELECT curs_dat AS Datum, COUNT(curs_dat) AS Aantal
FROM cursus
GROUP BY curs_dat
HAVING COUNT(curs_dat) >=1;