SQL - Group viele Kategorien in wenige Kategorien

Question

Ich habe eine Abfrage. Es gibt Zeilen zurück, wobei eine Spalte eine Statusspalte und eine Spalte eine Spalte für die verstrichene Zeit ist. Es gibt ~ 8 Statuskategorien. Ich möchte bestimmte Status und ihre verstrichenen Zeiten in ~ 3 Kategorien zusammenfassen. Hat jemand eine Idee, wie ich das machen kann?

Hier ist die aktuelle Abfrage, die Einträge in Bins am Tag teilt. Hier

declare @STARDTZ as datetime2 
declare @LASTDTZ as datetime2 

declare @STARTDT as datetime2 
declare @LASTDT as datetime2 

set @LASTDT = getdate() 
set @STARTDT = DATEADD(dd,-7,getdate()) 

SET @STARDTZ = DATEADD(dd, DATEDIFF(dd, 0, @STARTDT), 0) --set the start time to 12am (zero) given input datetime 
SET @LASTDTZ = DATEADD(dd, DATEDIFF(dd, 0, @LASTDT), 0) --set the stop time to 12am (zero) given input stoptime 
; 
with dates(dt) as (select @STARDTZ union all select dateadd(day,1,dt) from dates where dt < @LASTDTZ) 
select t.Name 
,case when t.StartDT>=d.dt then t.StartDT else d.dt end as StartDT 
,case when datediff(day,LastDT,dt)=0 then t.LastDT else dateadd(day,1,d.dt) end as LastDT 
,datediff(millisecond,case when t.StartDT>=d.dt then t.StartDT else d.dt end 
,case when datediff(day,LastDT,dt)=0 then t.LastDT else dateadd(day,1,d.dt) end)/60000.0 as IntervalMin 
,t.FullName 
,DATEADD(dd, DATEDIFF(dd, 0, dt), 0) as DateBin 

from 
(
    SELECT 
    CoatingChamberStates.Name as Name 
    ,c.StartDT as StartDT 
    ,c.LastDT as LastDT 
    ,c.IntervalMin 
    ,CoatingChambers.FullName 
    ,DATEADD(dd, DATEDIFF(dd, 0, StartDT), 0) as DateBin 

    FROM [REO].[dbo].CoatingChamberStateLogs as c 
    INNER JOIN CoatingChamberStates on c.CoatingChamberStatesID = CoatingChamberStates.CoatingChamberStatesID 
    INNER JOIN CoatingChambers on c.CoatingChambersID = CoatingChambers.CoatingChambersID 

    where c.StartDT >= @STARDTZ 
    and c.LastDT <= @LASTDTZ 


) as t 

join dates d on d.dt >= cast(t.StartDT as date) and d.dt<=cast(t.LastDT as date) 

group by DateBin, StartDT, Name, dt, LastDT, FullName 

ist, was es gibt:

Name StartDT LastDT IntervalMin FullName DateBin 
UNKNOWN 2017-04-28 00:05:31.1335380 2017-04-28 11:36:40.1200328 691.1497833 SPECTOR7    2017-04-28 00:00:00.000 
UNKNOWN 2017-04-28 00:06:31.6555661 2017-04-28 00:07:31.5121862 0.9976166 LOTUS3     2017-04-28 00:00:00.000 
IDLE 2017-04-28 00:07:31.5121862 2017-04-28 11:53:39.7066464 706.1365666 LOTUS3     2017-04-28 00:00:00.000 
UNKNOWN 2017-04-28 00:50:32.1654631 2017-04-28 00:51:32.0670071 0.9983666 LOTUS1     2017-04-28 00:00:00.000 
RUN_PARTS 2017-04-28 00:51:32.0670071 2017-04-28 00:53:32.0966491 2.0004833 LOTUS1     2017-04-28 00:00:00.000 
IDLE 2017-04-28 00:53:32.0966491 2017-04-28 05:50:36.3819295 297.0714166 LOTUS1     2017-04-28 00:00:00.000 
RUN_OTHER 2017-04-28 00:53:32.1747858 2017-04-28 12:03:40.0639753 670.1314833 OXFORD2     2017-04-28 00:00:00.000 
IDLE 2017-04-28 01:00:32.3043454 2017-04-28 02:26:33.3361640 86.0172000 SPECTOR1    2017-04-28 00:00:00.000 
IDLE 2017-04-28 01:50:32.8690160 2017-04-28 07:07:37.3384170 317.0744833 IONTECH     2017-04-28 00:00:00.000 
IDLE 2017-04-28 01:57:32.9759673 2017-04-28 02:36:33.6234811 39.0108000 LOTUS8     2017-04-28 00:00:00.000 
IDLE 2017-04-28 02:04:33.0037095 2017-04-28 03:10:33.8922959 66.0148166 LOTUS6     2017-04-28 00:00:00.000 
UNKNOWN 2017-04-28 02:12:33.2932821 2017-04-28 02:13:33.1640310 0.9978500 SPECTOR6    2017-04-28 00:00:00.000 
IDLE 2017-04-28 02:12:33.3089156 2017-04-28 05:27:36.3023807 195.0499000 SPECTOR8    2017-04-28 00:00:00.000 
RUN_PARTS 2017-04-28 02:13:33.1640310 2017-04-28 02:31:33.4447516 18.0046666 SPECTOR6    2017-04-28 00:00:00.000 
RUN_TEST 2017-04-28 02:26:33.3361640 2017-04-28 03:43:34.4053900 77.0178166 SPECTOR1    2017-04-28 00:00:00.000 
IDLE 2017-04-28 02:31:33.4447516 2017-04-28 04:27:35.0346386 116.0265000 SPECTOR6    2017-04-28 00:00:00.000 

ich die verstrichenen Zeiten für bestimmte Kategorien in 3 Kategorien kombinieren will: „Leerlauf“, „Laufen“ und „Abfall“, so zum Beispiel "run_parts" und "run_test" würden zu "running" zusammengefasst.

Macht das Sinn? Wie kann ich das angehen? Vielen Dank!

Answer 1

können Sie verwenden, um einen case Ausdruck, die Namen in die Eimer sortieren Sie in der abgeleiteten Tabelle wollen:

with dates(dt) as (select @stardtz union all select dateadd(day,1,dt) from dates where dt < @lastdtz) 
    select 
    t.Name 
    ,case when t.Startdt>=d.dt then t.Startdt else d.dt end as Startdt 
    ,case when datediff(day,Lastdt,dt)=0 then t.Lastdt else dateadd(day,1,d.dt) end as Lastdt 
    ,datediff(millisecond,case when t.Startdt>=d.dt then t.Startdt else d.dt end 
    ,case when datediff(day,Lastdt,dt)=0 then t.Lastdt else dateadd(day,1,d.dt) end)/60000.0 as IntervalMin 
    ,t.FullName 
    ,dateadd(day, datediff(day, 0, dt), 0) as DateBin 
    from (
    select 
    case when CoatingChamberStates.Name in ('run_parts','run_test') then 'running' 
     when CoatingChamberStates.Name = 'unknown' then 'waste' 
     else CoatingChamberStates.Name 
     end as Name 
    ,c.Startdt as Startdt 
    ,c.Lastdt as Lastdt 
    ,c.IntervalMin 
    ,CoatingChambers.FullName 
    ,dateadd(day, datediff(day, 0, Startdt), 0) as DateBin 
    from [reo].[dbo].CoatingChamberStateLogs as c 
     inner join CoatingChamberStates 
     on c.CoatingChamberStatesid = CoatingChamberStates.CoatingChamberStatesid 
     inner join CoatingChambers 
     on c.CoatingChambersid = CoatingChambers.CoatingChambersid 
    where c.Startdt >= @stardtz 
     and c.Lastdt <= @lastdtz 
    ) as t 
    join dates d 
     on d.dt >= cast(t.Startdt as date) 
    and d.dt<=cast(t.Lastdt as date) 
    group by DateBin, Startdt, dt, Lastdt, FullName, t.Name 

oder Sie können select und group by ein case Ausdruck statt t.Name:

with dates(dt) as (select @stardtz union all select dateadd(day,1,dt) from dates where dt < @lastdtz) 
    select 
    case when t.Name in ('run_parts','run_test') then 'running' 
     when t.Name = 'unknown' then 'waste' 
     else t.Name 
     end as Name 
    ,case when t.Startdt>=d.dt then t.Startdt else d.dt end as Startdt 
    ,case when datediff(day,Lastdt,dt)=0 then t.Lastdt else dateadd(day,1,d.dt) end as Lastdt 
    ,datediff(millisecond,case when t.Startdt>=d.dt then t.Startdt else d.dt end 
    ,case when datediff(day,Lastdt,dt)=0 then t.Lastdt else dateadd(day,1,d.dt) end)/60000.0 as IntervalMin 
    ,t.FullName 
    ,dateadd(day, datediff(day, 0, dt), 0) as DateBin 
    from (
    select 
    CoatingChamberStates.Name as Name 
    ,c.Startdt as Startdt 
    ,c.Lastdt as Lastdt 
    ,c.IntervalMin 
    ,CoatingChambers.FullName 
    ,dateadd(day, datediff(day, 0, Startdt), 0) as DateBin 
    from [reo].[dbo].CoatingChamberStateLogs as c 
     inner join CoatingChamberStates 
     on c.CoatingChamberStatesid = CoatingChamberStates.CoatingChamberStatesid 
     inner join CoatingChambers 
     on c.CoatingChambersid = CoatingChambers.CoatingChambersid 
    where c.Startdt >= @stardtz 
     and c.Lastdt <= @lastdtz 
    ) as t 
    join dates d 
     on d.dt >= cast(t.Startdt as date) 
    and d.dt<=cast(t.Lastdt as date) 
    group by DateBin, Startdt, dt, Lastdt, FullName 
    , case when t.Name in ('run_parts','run_test') then 'running' 
      when t.Name = 'unknown' then 'waste' 
     else t.Name 
     end