Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > microsoft.public.sqlserver.programming > #31350 > unrolled thread

Ordering the columns in a pivot table

Back to article view | Back to microsoft.public.sqlserver.programming

Contents

  Ordering the columns in a pivot table John Hall <foundarecord@gmail.com> - 2020-04-11 09:00 -0700
    Re: Ordering the columns in a pivot table Erland Sommarskog <esquel@sommarskog.se> - 2020-04-12 13:59 +0200

#31350 — Ordering the columns in a pivot table

I have a data table with these 3 columns 
SELECT [TestID],[ParameterID],[TextValue]
  FROM [ParameterEntries]

select TestID, [1] as Param1, [2] as Param2, [3] as Param3, [4] as Param4, [5] as Param5
from (select TestID, TextValue,
    row_number() over(partition by TestID order by ParameterID) rnk
  from ParameterEntries WHERE TestID = (SELECT TOP 1 TestID FROM Subgroups WHERE CharID = 502107)
) p
pivot(max(TextValue) for rnk in ([1], [2], [3], [4], [5])) piv

TestID  Param1          Param2  Param3  Param4  Param5
502014	20147338	3w	2.14	1.49	1.73

SELECT [PartID], [ParameterID], [PresentOrder]
  FROM [ParametersUsed]
  WHERE PartID = (SELECT PartID FROM CharList WHERE CharID = 502107)
  ORDER BY PresentOrder

TestID  ParameterID  PresentOrder
502014	154	     1
502014	502009	     2
502014	502022	     3
502014	502023	     4
502014	502024	     5

How do I put the Param1, Param2, Param3... in PresentOrder?

[toc] | [next] | [standalone]

#31352

SELECT PE.TestID,
       MIN(CASE PU.PresentOrder WHEN 1 THEN PE.TextValue END) AS Param1,
       MIN(CASE PU.PresentOrder WHEN 2 THEN PE.TextValue END) AS Param2,
       MIN(CASE PU.PresentOrder WHEN 3 THEN PE.TextValue END) AS Param3,
       MIN(CASE PU.PresentOrder WHEN 4 THEN PE.TextValue END) AS Param4,
       MIN(CASE PU.PresentOrder WHEN 5 THEN PE.TextValue END) AS Param5
FROM   ParametersEntries PE
JOIN   ParametersUser PU ON PE.TestID = PU.TestID
GROUP  BY PE.TestID

You may note that I don't use the PIVOT keyward. The above method with CASE 
is a lot more flexible and easier to understand. 

[toc] | [prev] | [standalone]

Back to top | Article view | microsoft.public.sqlserver.programming

csiph-web