avanzata SQL Server Ordina per

Question

Sto cercando di fare un ordine avanzato con con query SQL

Ho un database che viene utilizzato per monitorare i flussi di lavoro e le loro attività associate

Le attività precedenti (che sono stati completati) sono in uno stato closed. Hanno sia un Active_Date e Closed_Date set

L'attività attuale è in uno stato active. Esiste un insieme Active_Date, ma la Closed_Date è NULL

Per ogni ECR.item_number ci sarà una sola attività nello stato active

desidero ordinare da

1. ECR.item_number ma desidero la per essere basato su quale attività nello stato active in ordine decrescente
2. A.ACTIVE_DATE

Query:

SELECT 
    ECR.item_number, 
    ECR.title, 
    convert(VARCHAR(10),ECR.CREATED_ON,120) AS [Date CR Created], 
    convert(VARCHAR(10),A.ACTIVE_DATE,120) AS [Activity Activated], 
    convert(VARCHAR(10),A.CLOSED_DATE,120) AS [Activity Closed], 
    A.STATE, 
    A.NAME AS [Activity Name], 

    (CASE 
     WHEN 
      (A.STATE='Closed') 
     THEN 
      DATEDIFF(DAY, A.ACTIVE_DATE, A.CLOSED_DATE)  
    END) AS [DAYS ACTIVITY (WAS) OPEN], 

    (CASE 
     WHEN 
      (A.STATE='Active') 
     THEN 
      DATEDIFF(DAY, A.ACTIVE_DATE, Getdate()) 
    END) AS [DAYS ACTIVITY HAS BEEN OPEN] 

FROM 
    innovator.ecr AS ECR 
    INNER JOIN innovator.workflow AS WF 
     ON CR.id = WF.source_id 
    INNER JOIN innovator.workflow_process AS WFP 
     ON WF.related_id = WFP.id 
    INNER JOIN innovator.workflow_process_activity AS WPA 
     ON WFP.id = WPA.source_id 
    INNER JOIN innovator.activity AS A 
     ON WPA.related_id = A.id 

--Shown for clarity 
ORDER BY 
    ECR.ITEM_NUMBER, 
    [Activity Activated] 

dati di ritorno del campione

|-----------+-----------+-------------------+-----------------------+-----------------------+-------------------+-------------------------------+-------------------------------| 
|CR Number | Title | Date CR Created | Activity Name  | Activity Activated | Activity Closed | DAYS ACTIVITY (WAS) OPEN | DAYS ACTIVITY HAS BEEN OPEN | 
|-----------+-----------+-------------------+-----------------------+-----------------------+-------------------+-------------------------------+-------------------------------| 
|CR-000119 | ITEM 1 | 4/12/2012  | Submit CR   | 4/12/2012   | 31/01/2013  | 58       | 0       | 
|CR-000119 | ITEM 1 | 4/12/2012  | Check CR   | 31/01/2013   | 13/02/2013  | 13       | 0       | 
|CR-000119 | ITEM 1 | 4/12/2012  | Review CR   | 13/02/2013   | 21/02/2013  | 8       | 0       | 
|CR-000119 | ITEM 1 | 4/12/2012  | Technical Review | 21/02/2013   | 28/02/2013  | 7       | 0       | 
|CR-000119 | ITEM 1 | 4/12/2012  | CRB Meeting   | 28/02/2013   | NULL   | NULL      | 11       | 
|CR-00| ITEM 2 | 6/12/2012  | Check CR   | 6/12/2012   | 21/12/2012  | 15       | 0       | 
|CR-00| ITEM 2 | 6/12/2012  | Submit CR   | 6/12/2012   | 6/12/2012  | 0       | 0       | 
|CR-00| ITEM 2 | 6/12/2012  | Review CR   | 21/12/2012   | 17/01/2013  | 27       | 0       | 
|CR-00| ITEM 2 | 6/12/2012  | Technical Review | 17/01/2013   | 6/03/2013  | 48       | 0       | 
|CR-00| ITEM 2 | 6/12/2012  | CRB Meeting   | 6/03/2013   | NULL   | NULL      | 5       | 
|CR-000136 | ITEM 3 | 11/01/2013  | Submit CR   | 11/01/2013   | 15/01/2013  | 4       | 0       | 
|CR-000136 | ITEM 3 | 11/01/2013  | Check CR   | 15/01/2013   | 16/01/2013  | 1       | 0       | 
|CR-000136 | ITEM 3 | 11/01/2013  | Review CR   | 16/01/2013   | 21/01/2013  | 5       | 0       | 
|CR-000136 | ITEM 3 | 11/01/2013  | Technical Review | 21/01/2013   | 25/01/2013  | 4       | 0       | 
|CR-000136 | ITEM 3 | 11/01/2013  | CRB Meeting   | 25/01/2013   | 31/01/2013  | 6       | 0       | 
|CR-000136 | ITEM 3 | 11/01/2013  | Technical Review | 31/01/2013   | 27/02/2013  | 27       | 0       | 
|CR-000136 | ITEM 3 | 11/01/2013  | CRB Meeting   | 27/02/2013   | NULL   | NULL      | 12       | 
|-----------+-----------+-------------------+-----------------------+-----------------------+-------------------+-------------------------------+-------------------------------| 

Risultato desiderato

|-----------+-----------+-------------------+-----------------------+-----------------------+-------------------+-------------------------------+-------------------------------| 
|CR Number | Title | Date CR Created | Activity Name  | Activity Activated | Activity Closed | DAYS ACTIVITY (WAS) OPEN | DAYS ACTIVITY HAS BEEN OPEN | 
|-----------+-----------+-------------------+-----------------------+-----------------------+-------------------+-------------------------------+-------------------------------| 
|CR-000136 | ITEM 3 | 11/01/2013  | Submit CR   | 11/01/2013   | 15/01/2013  | 4       | 0       | 
|CR-000136 | ITEM 3 | 11/01/2013  | Check CR   | 15/01/2013   | 16/01/2013  | 1       | 0       | 
|CR-000136 | ITEM 3 | 11/01/2013  | Review CR   | 16/01/2013   | 21/01/2013  | 5       | 0       | 
|CR-000136 | ITEM 3 | 11/01/2013  | Technical Review | 21/01/2013   | 25/01/2013  | 4       | 0       | 
|CR-000136 | ITEM 3 | 11/01/2013  | CRB Meeting   | 25/01/2013   | 31/01/2013  | 6       | 0       | 
|CR-000136 | ITEM 3 | 11/01/2013  | Technical Review | 31/01/2013   | 27/02/2013  | 27       | 0       | 
|CR-000136 | ITEM 3 | 11/01/2013  | CRB Meeting   | 27/02/2013   | NULL   | NULL      | 12       | 
|CR-000119 | ITEM 1 | 4/12/2012  | Submit CR   | 4/12/2012   | 31/01/2013  | 58       | 0       | 
|CR-000119 | ITEM 1 | 4/12/2012  | Check CR   | 31/01/2013   | 13/02/2013  | 13       | 0       | 
|CR-000119 | ITEM 1 | 4/12/2012  | Review CR   | 13/02/2013   | 21/02/2013  | 8       | 0       | 
|CR-000119 | ITEM 1 | 4/12/2012  | Technical Review | 21/02/2013   | 28/02/2013  | 7       | 0       | 
|CR-000119 | ITEM 1 | 4/12/2012  | CRB Meeting   | 28/02/2013   | NULL   | NULL      | 11       | 
|CR-00| ITEM 2 | 6/12/2012  | Check CR   | 6/12/2012   | 21/12/2012  | 15       | 0       | 
|CR-00| ITEM 2 | 6/12/2012  | Submit CR   | 6/12/2012   | 6/12/2012  | 0       | 0       | 
|CR-00| ITEM 2 | 6/12/2012  | Review CR   | 21/12/2012   | 17/01/2013  | 27       | 0       | 
|CR-00| ITEM 2 | 6/12/2012  | Technical Review | 17/01/2013   | 6/03/2013  | 48       | 0       | 
|CR-00| ITEM 2 | 6/12/2012  | CRB Meeting   | 6/03/2013   | NULL   | NULL      | 5       | 
|-----------+-----------+-------------------+-----------------------+-----------------------+-------------------+-------------------------------+-------------------------------| 

Answer 1

In questo scenario trovo ECR.item_number nello stato attivo e assegnare questa data per il intero gruppo ECR.item_number mediante la clausola MAX() OVER(). Ulteriore ordinamento (crescente) sulla nuova colonna con il numero di posizione 10 nell'istruzione SELECT. Inoltre è possibile utilizzare alias come la colonna di ordinamento al posto del numero di posizione 10 in SELECT

SELECT ECR.item_number, 
     ECR.title, 
     convert(VARCHAR(10),ECR.CREATED_ON,120) AS [Date CR Created], 
     convert(VARCHAR(10),A.ACTIVE_DATE,120) AS [Activity Activated], 
     convert(VARCHAR(10),A.CLOSED_DATE,120) AS [Activity Closed], 
     A.STATE, 
     A.NAME AS [Activity Name], 
    (CASE WHEN (A.STATE='Closed') 
      THEN DATEDIFF(DAY, A.ACTIVE_DATE, A.CLOSED_DATE)  
    END) AS [DAYS ACTIVITY (WAS) OPEN], 
    (CASE WHEN (A.STATE='Active') 
     THEN DATEDIFF(DAY, A.ACTIVE_DATE, Getdate()) 
    END) AS [DAYS ACTIVITY HAS BEEN OPEN], 
    MAX(CASE WHEN A.CLOSED_DATE IS NULL THEN A.ACTIVE_DATE END) OVER (PARTITION BY ECR.item_number) 
FROM innovator.ecr AS ECR 
    INNER JOIN innovator.workflow AS WF 
     ON CR.id = WF.source_id 
    INNER JOIN innovator.workflow_process AS WFP 
     ON WF.related_id = WFP.id 
    INNER JOIN innovator.workflow_process_activity AS WPA 
     ON WFP.id = WPA.source_id 
    INNER JOIN innovator.activity AS A 
     ON WPA.related_id = A.id 
ORDER BY 10 ASC, ECR.ITEM_NUMBER, A.ACTIVE_DATE ASC 

semplice demo su SQLFiddle

Answer 2

La chiave di questo è quello di ottenere la data della Active di attività per ogni elemento. Questo può essere fatto utilizzando funzioni analitiche:

[DateOfActiveActivity] = MIN(CASE WHEN A.CLOSED_DATE IS NULL THEN A.ACTIVE_DATE END) OVER(PARTITION BY ECR.item_number) 

Quindi, per integrare questo nella vostra query che si può usare:

WITH CTE AS 
( SELECT [CRNumber] = ECR.item_number, 
      ECR.title, 
      [DateCRCreated] = CAST(ECR.CREATED_ON AS DATE), 
      [ActivityActivated] = CAST(A.ACTIVE_DATE AS DATE), 
      [ActivityClosed] = CAST(A.CLOSED_DATE AS DATE), 
      A.STATE, 
      [ActivityName] = A.NAME, 
      [DAYSACTIVITYOPEN] = CASE WHEN A.STATE = 'Closed' THEN DATEDIFF(DAY, A.ACTIVE_DATE, A.CLOSED_DATE) END, 
      [DAYSACTIVITYHASBEENOPEN] = CASE WHEN A.STATE = 'Active' THEN DATEDIFF(DAY, A.ACTIVE_DATE, GETDATE()) END, 
      [DateOfActiveActivity] = MIN(CASE WHEN A.CLOSED_DATE IS NULL THEN A.ACTIVE_DATE END) OVER(PARTITION BY ECR.item_number) 
    FROM innovator.ecr AS ECR 
      INNER JOIN innovator.workflow AS WF 
       ON CR.id = WF.source_id 
      INNER JOIN innovator.workflow_process AS WFP 
       ON WF.related_id = WFP.id 
      INNER JOIN innovator.workflow_process_activity AS WPA 
       ON WFP.id = WPA.source_id 
      INNER JOIN innovator.activity AS A 
       ON WPA.related_id = A.id 
) 
SELECT [CR Number] = [CRNumber], 
     Title, 
     [Date CR Created] = CONVERT(VARCHAR(10), DateCRCreated, 120), 
     [Activity Activated] = CONVERT(VARCHAR(10), ActivityActivated, 120), 
     [Activity Closed] = CONVERT(VARCHAR(10), ActivityClosed, 120), 
     [STATE], 
     [Activity Name] = ActivityName, 
     [DAYS ACTIVITY (WAS) OPEN] = [DAYSACTIVITYOPEN], 
     [DAYS ACTIVITY HAS BEEN OPEN] = [DAYSACTIVITYHASBEENOPEN] 
FROM CTE 
ORDER BY DateOfActiveActivity ASC, ActivityActivated, ActivityClosed; 

Demo with sample data on SQL Fiddle