SQL計數或聚合錯誤

Question

這裏是論壇新手。我的問題是，如何獲得一列的數量並根據案例陳述呈現？我已經搜索了論壇並找到了與獲得計數，金額和總計有關的答案，但沒有發現任何與案例陳述的附加條件有關的問題。以下是我目前的代碼。該代碼可以正常工作，但不會根據需要返回信息。

例如可以說在一個特定的程序中有5個不同的站點有10次訪問。我怎樣才能得到的輸出顯示爲這樣：

visits e4pv.site_providing_service_name, State location program_name 
2 a b c d 
2 b b c d 
2 c b c d 
2 d b c d 
2 e b c d 

和查詢是：

select distinct 
count (e4pv.people_id) as visits,--field is not numeric 
e4pv.site_providing_service_name, 
e4pv.actual_date, 
CASE 

when --case_out_locations_based_on_states 

end as State,  
CASE 
when rcis.program_name in ('') 
    then rcis.managing_office_name 
when rcis.program_name not in ('') 
    then rcis.profile_name 
end as location,rcis.program_name, e4pv.event_name 
from dbo.rpt_events_4people_view as e4pv 
join dbo.rpt_critical_info_script as rcis with (nolock) on 
e4pv.people_id = rcis.people_id and 
e4pv.site_providing_service = rcis.managing_office_id 
left outer join dbo.program_modifier_enrollment_view as pmev with(nolock) on 
    rcis.people_id = pmev.people_id 
where 
rcis.program_name not in ('')       
and e4pv.event_name in ('') 
and date between '07/01/2015' and '06/30/2016' 
GROUP BY 
e4pv.people_id, 
e4pv.site_providing_service_name, 
e4pv.actual_date, 
rcis.managing_office_name, 
rcis.profile_name, 
rcis.program_name 

感謝您的幫助

更新過的語法

我已經更新的語法建議使用子查詢並將小組聲明添加到小組中，但仍然無法獲得結果。該代碼導致錯誤，如組附近的語法錯誤等。

select visits, State, location, rcis.program_name, e4pv.event_name 
from (
select distinct 
count(e4pv.people_id) as visits, 
e4pv.actual_date, 
    CASE 
    --cities mapped to states 
    end as State,  
    CASE 
when rcis.program_name in ('') 
    then rcis.managing_office_name 
when rcis.program_name not in ('') 
    then rcis.profile_name 
     end as location, 
    rcis.program_name, 
    e4pv.event_name 

    from dbo.rpt_events_4people_view as e4pv 

    join dbo.rpt_critical_info_script as rcis with (nolock) on 
    e4pv.people_id = rcis.people_id and 
    e4pv.site_providing_service = rcis.managing_office_id 

    where 
    rcis.program_name not in ('')        
    and e4pv.event_name in ('A') 

     ) 

    GROUP BY 

    count(e4pv.people_id), 
    rcis.profile_name, 
    rcis.program_name, 
     e4pv.event_name 

Answer 1

我建議您在臨時表中添加更多信息與示例記錄。然而，這段代碼可以幫助你更清楚地建立你的想法來幫助你，或者你可以推斷出你的想法。 - 假設：總行希望看到的人拜訪與他有關

declare @table table (namee varchar(50),id int, stateeVisit varchar(5)) 
insert @table select 'Gordin' ,1 , 'CA' 
insert @table select 'LingOff' ,2 , 'NY' 
insert @table select 'Ane' ,3 , 'CA' 
insert @table select 'Faheem' ,4 , 'PH' 
insert @table select 'George' ,5 , 'WA' 
--sample records added 

; WITH CTE_AfterCase as (
select 
    namee, 
    id, 
    stateeVisit, 
    VisitToCoast = CASE WHEN stateeVisit in ('CA','WA') THEN 'WESTCOAST' ELSE   stateeVisit END 
from @table), 
-- added conditional column in column table expression 
CTE_GroupedVisitCount as (
    select 
     A.VisitToCoast 
     ,A.stateeVisit as Statee 
     ,count(A.id) as visitcount 

    from CTE_AfterCase A 
    group by 
     A.VisitToCoast 
     ,A.stateeVisit 

     ) 
-- grouped the required data 
     select g.visitcount  ,rawdata.stateeVisit,rawdata.namee,rawdata.id,g.VisitToCoast from  CTE_GroupedVisitCount g 
     left join @table rawdata on g.statee = rawdata.stateeVisit 
-- showed the grouping info with each record 

希望它有助於

Answer 2

這聽起來像所有你需要做不同的狀態，其辦公區（西海岸或東海岸）是由你的小組改變什麼。您需要將完全分組，您希望在結果中看到的組，而不是您用來創建它們的所有字段。因此，您必須按照它們在選擇中顯示（沒有別名）的方式將您的病例報告複製到組中，或者您可以使用您擁有的選項，選擇people_id而不是對其進行計數（並完全刪除組），並將其包裝在一個可以計數的圖層中。這樣，如果您需要更新您的案例聲明以獲取位置信息，它只會在一個地方。

select count(people_id) visits, state, program_name [etc.] 
from (your existing query with no count, and no group by) x 
group by state, program_name, [etc.]