Мисля, че имате предвид, че ако stock > 1000
след това друг цвят not green
.
SELECT Beer.Beer,
Beer.Brewery,
Beer.Style,
Beer.ABV,
Beer.Hops,
Beer.SRM,
Sum(BeerStock.Quantity) totalQuantity,
CASE WHEN Sum(BeerStock.Quantity) < 0 THEN ''
WHEN Sum(BeerStock.Quantity) BETWEEN 0 AND 999 THEN 'Red'
WHEN Sum(BeerStock.Quantity) BETWEEN 1000 AND 4999 THEN 'Yellow'
WHEN Sum(BeerStock.Quantity) BETWEEN 5000 AND 9999 THEN 'GREEN'
WHEN Sum(BeerStock.Quantity) >= 10000 THEN 'Another Color'
END
FROM Beer
INNER JOIN BeerStock
ON Beer.Beer = BeerStock.Beer
-- Where ..other conditions..
но ако наистина имаш предвид това,
SELECT Beer.Beer,
Beer.Brewery,
Beer.Style,
Beer.ABV,
Beer.Hops,
Beer.SRM,
Sum(BeerStock.Quantity) totalQuantity,
CASE WHEN Sum(BeerStock.Quantity) < 0 THEN ''
WHEN Sum(BeerStock.Quantity) BETWEEN 0 AND 999 THEN 'Red'
WHEN Sum(BeerStock.Quantity) BETWEEN 1000 AND 4999 THEN 'Yellow'
WHEN Sum(BeerStock.Quantity) >= 5000 THEN 'GREEN'
END
FROM Beer
INNER JOIN BeerStock
ON Beer.Beer = BeerStock.Beer
-- Where ..other conditions..
Още нещо, Вие също трябва да използвате GROUP BY
клауза или в противен случай ще върнете само един запис, дори ако имате различни записи,
SELECT Beer.Beer,
Beer.Brewery,
Beer.Style,
Beer.ABV,
Beer.Hops,
Beer.SRM,
Sum(BeerStock.Quantity) totalQuantity,
CASE WHEN Sum(BeerStock.Quantity) < 0 THEN ''
WHEN Sum(BeerStock.Quantity) BETWEEN 0 AND 999 THEN 'Red'
WHEN Sum(BeerStock.Quantity) BETWEEN 1000 AND 4999 THEN 'Yellow'
WHEN Sum(BeerStock.Quantity) BETWEEN 5000 AND 9999 THEN 'GREEN'
WHEN Sum(BeerStock.Quantity) >= 10000 THEN 'Another Color'
END
FROM Beer
INNER JOIN BeerStock
ON Beer.Beer = BeerStock.Beer
-- Where ..other conditions..
GROUP BY Beer.Beer,
Beer.Brewery,
Beer.Style,
Beer.ABV,
Beer.Hops,
Beer.SRM