Question

我已经发布了两个关于我的问题的问题，而我几乎就在那里。

这是我以前的帖子：

use array/variable in sql-query
extend SQL result - add row if not exist

通过一个例子更容易解释它，所以这是一个虚构的例子：

我的表看起来像这样（我只显示我需要的行，此表包含+ 100k行）

status  PGID    nvarchar5               nvarchar10  CatId   tp_ID   isActive
IT      NULL    Information technology  NULL        1       1       1
HR      NULL    Human Recource          NULL        1       2       1
FIN     NULL    Finance                 NULL        1       3       1
New        1    NULL                    1354        2       10001   1
New        1    NULL                    464         2       10002   1
New        1    NULL                    13465       2       10003   1
Active     1    NULL                    79846       2       10004   1
Deleted    1    NULL                    132465      2       10005   1
New        2    NULL                    79847       2       10006   1
New        2    NULL                    341         2       10007   1
Deleted    2    NULL                    465         2       10008   1
Deleted    2    NULL                    132         2       10009   1
Deleted    2    NULL                    465         2       10010   1
Deleted    2    NULL                    1           2       10011   1
New        3    NULL                    465         2       10012   1
New        3    NULL                    1465        2       10013   1
New        3    NULL                    132         2       10014   1
NULL    NULL    NULL                    NULL        3       20136   1
NULL    NULL    NULL                    NULL        4       22165   1
NULL    NULL    NULL                    NULL        3       24566   1

我使用此查询：

SELECT stat.status
      ,d.[PGID] as PGID
      ,pg.[nvarchar5] as PGName
      ,COUNT(d.[nvarchar10])
FROM 
    (select distinct [status]
     from [content].[dbo].[USRData] 
     where  CatId = '1') stat cross Join
      [content].[dbo].[USRData]  d INNER JOIN
      [content].[dbo].[USRData]  pg on d.[PGID] = pg.[tp_ID]
where d.CatId = '1'
      AND d.[nvarchar10] is not null
      AND stat.status is not null
      AND d.[isActive] = 1
      AND pg.[CatId] = '2'
group by stat.status, 
         pg.[nvarchar5], 
         d.[PGID]
order by PGName

然后我得到了这个结果：

status  PGID    nvarchar5               total
new     1       Information technology  5
active  1       Information technology  5
deleted 1       Information technology  5
new     2       Human Recource          6
active  2       Human Recource          6
deleted 2       Human Recource          6
new     3       Finance                 3
active  3       Finance                 3
deleted 3       Finance                 3

但我希望得到这样的结果：

status  PGID    nvarchar5               total
new     1       Information technology  3
active  1       Information technology  1
deleted 1       Information technology  1
new     2       Human Recource          2
active  2       Human Recource          0
deleted 2       Human Recource          4
new     3       Finance                 3
active  3       Finance                 0
deleted 3       Finance                 0

我不是SQL的专业人士。也许这是愚蠢的事情，但我被卡住了...欢迎任何帮助！：）

Answer 1

我注意到，在您正在寻找的结果中，total列中的行数少于给定的结果，可能是由于重复行，我猜CROSS JOIN负责为此，你为什么不在INNER JOIN

上尝试status

(select distinct [status]
     from [content].[dbo].[USRData] 
      where  CatId = '1') stat 
     INNER JOIN [content].[dbo].[USRData]  d on stat.[status]=d.[status]
     INNER JOIN [content].[dbo].[USRData]  pg on d.[PGID] = pg.[tp_ID]

count（）中的错误数字

1 个答案: