Dynamic Pivot SQL Server Not Showing Value - sql

Question

I have the following table:
oCode oDateTime oValue
---------------------------------------------
A 2017-01-01 10
B 2017-01-01 20
C 2017-01-01 5
I want to have the following result:
oDateTime A B C
------------------------------------------------
2017-01-01 10 20 5
If Static Pivot, I would use the following code:
select
*
from
(
select
sTag
, sDateTime
, sValue
from #condesarsp
) src
pivot
(
sum(sValue)
for sTag in ([X1], [X2], [X3])
) piv
order by sDateTime;
But unluckily, The oValue is not shown. Its just showing null value. Is there a typo on the code above?
After, I want to have dynamic pivot. So I don't need to define the column, It's just generate from oCode value.
Need help, thank you.

Answer 1

First, you would required to specify max() function rather than sum() and other sTag has value should be [A], [B], [C] rather than [X1]..[X3]
select *
from
(
select
oCode, oDateTime, oValue
from table
) src pivot(
max(oValue)
for ocode in ([A], [B], [C])
) piv
order by 1;

Answer 2

Ya there is some mistakes in your query. You have to give the oCode like A,B,C instead of [X1], [X2], [X3]. Like this:
for sTag in (A, B, C)
So the corrected code is:
select
*
from
(
select
oCode
, oDateTime
, oValue
from condesarsp
) src
pivot
(
sum(oValue)
for oCode in (A, B, C) -- This line is changed.
) piv
order by oDateTime;
Follow the link for demo:
http://sqlfiddle.com/#!18/06a9d/3
Dynamic Query:
DECLARE #cols AS NVARCHAR(MAX),
#query AS NVARCHAR(MAX)
SET #cols = STUFF((SELECT distinct ',' + QUOTENAME(c.oCode)
FROM condesarsp c
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set #query = 'SELECT oDateTime, ' + #cols + ' from
(
select oCode
,oDateTime
,oValue
from condesarsp
) x
pivot
(
sum(oValue)
for oCode in (' + #cols + ')
) p '
execute(#query);
Follow the link to the demo:
http://sqlfiddle.com/#!18/06a9d/7