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[英]How to get distinct count of values of all the columns of a table based on where condition in sql server?
[英]How to find count of column, based on 3 distinct values of 3 columns in Sql server?
我需要計算每個建築物,每個樓層和每個區域的房間數量..(如下圖所示)
我嘗試過使用distinct和group by,但是我沒有得到必需的結果。
你沒有提供你已經修改的實際SQL,但是這樣的東西應該可以工作(顯然有正確的字段/表名)
SELECT BuildingNo, Floor, Zone, COUNT(Rooms) AS NoOfRooms
FROM myTable
GROUP BY BuildingNo, Floor, Zone
ORDER BY BuildingNo, Floor, Zone
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