SQL Pivot Problem - multiple aggregates?

Question

I have the following data returned buy a simple SQL query. The Number of sites could change, but X,Y,Z are fixed (they are different types of accidents, and the data stored represents the number of occurances)

| Site | X | Y | Z |
--------------------
   A      1   2   3
   B      4   5   6
   C      7   8   9

I need to get it to the following format

| A | B | C |
--------------
   1   4   7
   2   5   8
   3   6   9

I have this so far

select * 
from Example
pivot 
(
Max(X)
for site in ([A],[B],[C])
) as p

But I think I need multiple aggregates (for X, Y and Z).

Here is a quick script to create the base data

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Example](
     [Site] [nvarchar](50) COLLATE Latin1_General_CI_AS NOT NULL,
     [X] [int] NOT NULL,
     [Y] [int] NOT NULL,
     [Z] [int] NOT NULL
) ON [PRIMARY]

insert into Example(Site, X,Y,Z) Values ('A',1,2,3)
insert into Example(Site, X,Y,Z) Values ('B',4,5,6)
insert into Example(Site, X,Y,Z) Values ('C',7,8,9)

Any help really welcome as I am stuck!

Mark

user359040 · Accepted Answer · 2010-10-29 11:07:14Z

1

You need to UNPIVOT your data, before rePIVOTing it about the accident site - like so:

select * 
from Example
unpivot 
(
numbers 
for type in (x,y,z)
) as p
pivot 
(
Max(numbers)
for site in ([A],[B],[C])
) as q

answered Oct 29, 2010 at 11:07

user359040

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