SELECT Rating, SUM(Poids)
FROM Test
WHERE Portefeuille = 'NameTest' AND LaDate = #20/10/2021#
GROUP BY Rating
ORDER BY CASE WHEN Rating = 'AAA' THEN 1
WHEN Rating = 'AA+' THEN 2
WHEN Rating = 'AA' THEN 3
WHEN Rating = 'A+' THEN 4
WHEN Rating = 'A' THEN 5
WHEN Rating = 'A-' THEN 6
ELSE 7
Why the above SQL String throw an error :
Run-time error รจ-2147467259 (80004005)': Unrecognized keyword WHEN.