我有以下查詢:SUM基於不同類型
SELECT
ISNULL(DrugName,'Sub Total:') as Drug,
SUM(COUNT) as Count,
Percentage
FROM
(
SELECT
DrugName,
DrugCategoryName,
COUNT(*) as Count,
CONVERT(DECIMAL(10,2),COUNT(*) * 100.0/SUM(COUNT(*)) over()) as Percentage
FROM
Visit V
INNER JOIN Drug D on
V.DrugID = D.DrugID
INNER JOIN DrugCategory DC on
D.DrugCategoryID = DC.DrugCategoryID
GROUP BY GROUPING SETS
((DrugName, DrugCategoryName))
) a
GROUP BY GROUPING SETS
((DrugName, DrugCategoryName, Percentage), (DrugCategoryName))
其結果如下:
Drug Count Percentage
Amphetamines 401 4.24
Benzodiazapine 435 4.60
Biodone 459 4.85
Sub Total: 1295 NULL
Brown Heroin 436 4.61
Buprenorphine 396 4.18
Cocaine 444 4.69
Did not inject 404 4.27
Endone 450 4.75
Fentanyl Patch 404 4.27
Heroin 1365 14.42
Heroin & Cocaine 448 4.73
Ice/Crystal/Meth 889 9.39
Sub Total: 5236 NULL
Kapanol 427 4.51
Methadone 430 4.54
Methadone Syrup 394 4.16
Morphine 417 4.41
MS Contin 438 4.63
MS Mono 424 4.48
Other Amphetamines 404 4.27
Sub Total: 2934 NULL
什麼我也需要做的是計算小計百分比,所以例如第一個小計總計爲1295,因此計算基於1295 + 5236 + 2934的百分比並獲得13.68%的值,以此類推其他小計總計行。
這怎麼能動態完成,所以無論小計總量是多少,它都能正確計算出來?
你嘗試過做SELECT ISNULL(DrugName, '小計:' )as Drug, SUM(COUNT)as Count, SUM(Percentage)/ SUM(COUNT)AS perc ...然後全部和以前一樣 – Cato
是的,我感謝@Cato - 沒有好處。 – Philip
您將需要在那裏通過DrugCategoryName'訂購。 – shawnt00