SQL Query assistance using Pivot - sql

Question

I have a table as follows:
PriorityText Priority LoRes Partial Unknown N_A HiRes
------------------------------------------------------------------
Very High 5 0.0612 0.0000 0.0612 0.0612 0.2041
High 4 0.1429 0.0000 0.1633 0.0000 0.1633
Medium 3 0.0000 0.0000 0.1020 0.0000 0.0408
Low-Medium 2 0.0000 0.0000 0.0000 0.0000 0.0000
Low 1 0.0000 0.0000 0.0000 0.0000 0.0000
I am tying to transpose the tbale into this:
PriorityText Low Low-Medium Medium High Very High
--------------------------------------------------------
Priority 1 2 3 4 5
LoRes 0 0 0 0.1429 0.0612
Partial 0 0 0 0 0
Unknown 0 0 0.102 0.1633 0.0612
N_A 0 0 0 0 0.0612
HiRes 0 0 0.0408 0.1633 0.2041
I am using SQL 2008. I am habing trouble coming up with the SQL syntax to perform a pivot on the data.
Can someone please share a SQL snippet that will solve this for me?
I have used the following to successfully pivot one row, but I do not know how to make it do all my rows.
SELECT VeryHigh AS VeryHigh,
High AS High,
Medium AS Medium,
[Low-Medium] AS [Low-Medium],
Low AS Low
FROM (SELECT [PriorityText], [LoRes], [Low-Medium], [Medium], [High], [VeryHigh]
FROM #tbTemp) p
PIVOT (SUM(LoRes) FOR [PriorityText] in ([VeryHigh], [High], [Medium], [Low-Medium], [Low])) pvt
My test data in my table is as follows:
Priority PriorityText LoRes Partial Unknown N_A HiRes
1 VeryHigh 0.05 11 54 0 9
2 High 0.14 22 54 0 3
3 Medium 0.07 33 65 0 7
4 Low-Medium 0.01 44 87 0 4
5 Low 0 55 9 0 0
NULL NULL NULL NULL NULL NULL NULL
Thank for any help!!

Answer 1

You need to UNPIVOT data and then re-PIVOT values using desired column heads:
SELECT pvt.*
FROM
(
SELECT unpvt.PriorityText
,unpvt.PriorityText2
,unpvt.MyValueMyValue
FROM SourceTable src
UNPIVOT( MyValueMyValue FOR PriorityText2 IN ([Priority],[LoRes],[Partial],[Unknown],[N_A],[HiRes]) ) unpvt
) src2
PIVOT( MAX(src2.MyValueMyValue) FOR src2.PriorityText IN ([Low],[Low-Medium],[Medium],[High],[Very High]) ) pvt

Answer 2

This solution is kind of ugly, but i think it will do what you are asking for and is pretty straight forward.
There are more elegant and dynamic ways to transpose data with dynamic sql and with xml.
for example http://sql-tricks.blogspot.com/2011/04/sql-server-rows-transpose.html
-- POPULATE SAMPLE DATA
DECLARE #tbTemp table (PriorityText varchar(50), Priority float, LoRes float, Partial float, Unknown float, N_A float, HiRes float)
insert into #tbTemp (PriorityText,Priority,LoRes,Partial,Unknown,N_A, HiRes)
values
('Very High',5,0.0612,0.0000,0.0612,0.0612,0.2041),
('High',4,0.1429,0.0000,0.1633,0.0000,0.1633),
('Medium',3,0.0000,0.0000,0.1020,0.0000,0.0408),
('Low-Medium',2,0.0000,0.0000,0.0000,0.0000,0.0000),
('Low',1,0.0000,0.0000,0.0000,0.0000,0.0000)
;
with sourcetable ([Key],ColumnName,Value) -- Transposing into key/value-pair for each column
as
(
select 'Priority', PriorityText, Priority from #tbTemp
union all
select 'LoRes', PriorityText, LoRes from #tbTemp
union all
select 'Partial', PriorityText, Partial from #tbTemp
union all
select 'Unknow', PriorityText, Unknown from #tbTemp
union all
select 'N_A', PriorityText, N_A from #tbTemp
union all
select 'HiRes', PriorityText, HiRes from #tbTemp
)
select
grouptable.PriorityText,
(select Value from sourcetable
where sourcetable.ColumnName = 'Low'
and sourcetable.[Key] = grouptable.PriorityText) as Low,
(select Value from sourcetable
where sourcetable.ColumnName = 'Low-Medium'
and sourcetable.[Key] = grouptable.PriorityText) as [Low-Medium],
(select Value from sourcetable
where sourcetable.ColumnName = 'Medium'
and sourcetable.[Key] = grouptable.PriorityText)as Medium,
(select Value from sourcetable
where sourcetable.ColumnName = 'High'
and sourcetable.[Key] = grouptable.PriorityText) as High,
(select Value from sourcetable
where sourcetable.ColumnName = 'Very High'
and sourcetable.[Key] = grouptable.PriorityText) as [Very High]
from (
select 'Priority' as PriorityText
union all
select 'LoRes' as PriorityText
union all
select 'Partial' as PriorityText
union all
select 'Unknow' as PriorityText
union all
select 'N_A' as PriorityText
union all
select 'HiRes' as PriorityText
) grouptable -- Creating each row