Question

我必须在SQL Server 2012中运行查询，以根据请求状态从表中选择数据。

我正在使用查询而不包括获取当前数据周的where条件。

没有where条件的查询

select * from (SELECT ReqStatus,[priority] 
FROM WEEKDATA
group by ReqStatus,[priority] ,Raisedon

)p
pivot (
    Count([priority])
    For [priority] IN(Critical,High,Medium,Low)
 )
as pvt

结果

|ReqStatus | Critical| High| Medium| Low 
|----------|---------|-----|-------|----
| Approved |    1    |  0  |   0   | 0
| Assigned |    2    |  0  |   0   | 0
| Closed   |    2    |  1  |   1   | 1
| Rejected |    0    |  1  |   0   | 0

当我在当前周数据的查询中包含where条件时

使用Where条件查询

select * from (SELECT ReqStatus,[priority] 
FROM WEEKDATA
    where DATENAME(wk,Raisedon)=DATENAME(wk,GETUTCDATE())
    group by ReqStatus,[priority] ,Raisedon

    )p
    pivot (
        Count([priority])
        For [priority] IN(Critical,High,Medium,Low)
     )
    as pvt

实际结果

|ReqStatus | Critical| High| Medium| Low 
|----------|---------|-----|-------|----
| Assigned |    1    |  0  |   0   | 0
| Closed   |    0    |  0  |   1   | 0

我得到了上述结果，因为在本周我只有两个状态＆＃34;分配＆＃34;，＆＃34;关闭＆＃34;在我的桌子上。但我还需要其他请求状态，例如＆＃34;已批准＆＃34;，＆＃34;拒绝＆＃34;在列表中，列中包含0值，即“严重”，“高”，“中”，“低”。

For Instance，

预期结果

|ReqStatus | Critical| High| Medium| Low 
|----------|---------|-----|-------|----
| Approved |    0    |  0  |   0   | 0
| Assigned |    1    |  0  |   0   | 0
| Closed   |    0    |  0  |   1   | 0
| Rejected |    0    |  0  |   0   | 0

Answer 1

您可以将CTE与UNION ALL一起使用，以添加值为0的状态。

;WITH CTE_wd AS
(
    SELECT ReqStatus,[priority] 
    FROM WEEKDATA
    where DATENAME(wk,Raisedon)=DATENAME(wk,GETUTCDATE())
    group by ReqStatus,[priority] ,Raisedon
)   
select * from (SELECT ReqStatus,[priority] 
FROM CTE_wd
UNION ALL
SELECT DISTINCT w.ReqStatus , '' AS [priority]
FROM WEEKDATA AS w
LEFT JOIN CTE_wd AS wd ON wd.ReqStatus = w.ReqStatus
WHERE wd.ReqStatus IS NULL
)p
pivot (
    Count([priority])
    For [priority] IN(Critical,High,Medium,Low)
 )
as pvt

在SQL Server

1 个答案: