Question

我正在使用SQL Server 2012。

我有一个名为|Id | SiteId| IsNormal| DateReview | ObjectId |FrequencyId|InspectItemId | |3379| 5| True | 2016-09-08 00:00:00.000| 1019 | 1 | 16 | |3380| 5| True | 2016-09-08 00:00:00.000| 1019 | 1 | 20 | |3381| 5| False | 2016-09-08 00:00:00.000| 1020 | 1 | 16 | |3382| 5| True | 2016-09-08 00:00:00.000| 1020 | 1 | 54 |的表：

IsNormal

bit是DamageEvents列。

此表名为| Id | ExternalId | Subject | CMT | | 1 | 3379 | damage5 | some comment7 | | 2 | 3380 | damage3 | some comment3 | | 3 | 3382 | damage4 | some comment5 | | 4 | 3381 | damage1 | some comment4 |：

ExternalId

DamageEvents表中的SELECT InspectionReviews.Id, InspectionReviews.SiteId, InspectionReviews.IsNormal, InspectionReviews.DateReview, InspectionReviews.ObjectId, InspectionReviews.FrequencyId, InspectionReviews.InspectItemId, DamageEvents.ExternalId, DamageEvents.Subject, DamageEvents.CMT, FROM InspectionReviews INNER JOIN DamageEvents ON InspectionReviews.Id = DamageEvents.ExternalId列是外键。

我在两个表之间写了一个内连接：

|Id  | SiteId| IsNormal|     DateReview            | ObjectId |FrequencyId|InspectItemId | ExternalId | Subject |     CMT       |
|3379|  5    |  True   |    2016-09-08 00:00:00.000|    1019  |     1     |     16       |    3379    | damage5 | some comment7 |
|3380|  5    |  True   |    2016-09-08 00:00:00.000|    1019  |     1     |     20       |    3380    | damage3 | some comment3 |
|3381|  5    |  False  |    2016-09-08 00:00:00.000|    1020  |     1     |     16       |    3381    | damage4 | some comment5 |
|3382|  5    |  True   |    2016-09-08 00:00:00.000|    1020  |     1     |     54       |    3382    | damage1 | some comment4 |

我得到的结果：

ObjectId

实施内部联接后，我需要按| Id | SiteId| IsNormal| DateReview | ObjectId |FrequencyId|InspectItemId | Subject | CMT | |3379,3380| 5 | True | 2016-09-08 00:00:00.000| 1019 | 1 | 16,20 | damage5 | some comment7,some comment3 | |3381,3382| 5 | False | 2016-09-08 00:00:00.000| 1020 | 1 | 16,54 | damage4 | some comment5,some comment4 |进行分组。这是理想的结果：

ObjectId

我需要在IsNormal之后对（上连接）上面的表进行分组，如果在分组表中至少有一行s = "bobobobobobsdfsdfbob" count = s.count("bob") print(count)为false，则它必须为False。

我该如何实施？

Answer 1

您可以使用以下查询：

; with cte as (
SELECT  InspectionReviews.Id,
        InspectionReviews.SiteId,
        InspectionReviews.IsNormal,
        InspectionReviews.DateReview,
        InspectionReviews.ObjectId,                 
        InspectionReviews.FrequencyId, 
        InspectionReviews.InpectItemId, 
        DamageEvents.ExternalId, 
        DamageEvents.Subject,
        DamageEvents.CMT

FROM    #inspectionreviews InspectionReviews INNER JOIN
        #damageevents DamageEvents ON InspectionReviews.Id = DamageEvents.ExternalId
)
select objectid, min(convert(int,IsNormal)) as IsNormal , stuff ((
select ',' + convert(varchar(5),Id) from cte where objectid = t.objectid 
for xml path('')
),1,1,'') as Id
, stuff ((
select ',' + convert(varchar(5),inpectitemid) from cte where objectid = t.objectid 
for xml path('')
),1,1,'') as InspectItemId
, stuff ((
select ',' + subject from cte where objectid = t.objectid 
for xml path('')
),1,1,'') as Subject
, stuff ((
select ',' + CMT from cte where objectid = t.objectid 
for xml path('')
),1,1,'') as CMT,
max(frequencyid) as FrequencyId,
max(SiteId) as SiteId
from cte t group by objectid

Answer 2

愿这个帮助 -

select
    ObjectId,
    Id = Stuff( (select ',' + convert(varchar(100), Id) 
                 from InspectionReviews     
                  where ObjectId = ir.ObjectId for xml path('')), 1, 1, ''),
    IsNormal = Min(convert(int, IsNormal))
from
    InspectionReviews ir
group by
    ObjectId

如何在内连接后对表进行分组？

2 个答案: