SQL - 没有分组的计数

Question

从3小时开始，我试图计算不同的列而不对它们进行分组。 我尝试使用连接或子选择查询，但因为我是SQL的新手，所以我没有解决该怎么做。

所以这是我的SQL查询：

SELECT [Destination ID], 
       [ProjectID], 
       [Campaign ProjectId]
FROM Raw_Data;

如何在一个SQL查询中计算目标ID，项目ID和Campaign项目ID，并显示表中的每个ID。

这里有一个例子，输出应该如何：

Screenshot

我正在使用MS Access。

如果有人可以帮助我的话会很棒。

非常感谢！

Answer 1

如果我理解你的话，你可以试试这个：

SELECT 
    [Destination ID], 
    (SELECT COUNT([Destination ID]) 
        FROM Raw_Data AS T2 
        WHERE T2.[Destination ID] = T1.[Destination ID]) AS DestCount,
    [ProjectID], 
    (SELECT COUNT([ProjectID]) 
        FROM Raw_Data AS T3 
        WHERE T3.[ProjectID] = T1.[ProjectID]) AS ProjectCount,
    [Campaign ProjectId],
    (SELECT COUNT([Campaign ProjectId]) 
        FROM Raw_Data AS T4 
        WHERE T4.[Campaign ProjectId] = T1.[Campaign ProjectId]) AS CampaignCount 
FROM Raw_Data AS T1;

修改

使用较新的Access版本，您可以尝试：

SELECT 
    T1.[Destination ID], 
    T2.[DestCount],
    T1.[ProjectID], 
    T3.[ProjectCount],
    T1.[Campaign ProjectId],
    T4.[CampaignCount] 
FROM (((Raw_Data AS T1 
        INNER JOIN 
        (
        SELECT [Destination ID], COUNT([Destination ID]) AS DestCount 
        FROM Raw_Data 
        GROUP BY [Destination ID]
        ) 
        AS T2 ON 
        T1.[Destination ID] = T2.[Destination ID])
        INNER JOIN 
        (
        SELECT [ProjectID], COUNT([ProjectID]) AS ProjectCount
        FROM Raw_Data
        GROUP BY [ProjectID]
        )
        AS T3
        ON T1.[ProjectID] = T3.[ProjectID])
        INNER JOIN 
        (
        SELECT [Campaign ProjectID], COUNT([Campaign ProjectID]) AS CampaignCount
        FROM Raw_Data
        GROUP BY [Campaign ProjectID]
        )
        AS T4
        ON T1.[Campaign ProjectID] = T4.[Campaign ProjectID])

我无法在较新的Access版本上对此进行测试，只需了解这可行。