TSQL: Need to have new column instead of next row - sql-server

Question

Sorry if I asked in wrong way, I am new to SQL.
I have one temp table where I am inserting values after joining different tables
then,I came across where I need to update that temp table with 3 field( colm1 as datetime,colm2 datetime,colm3 money)
for this i created field in temp table .
now,
select colm1,colm2,sum(colm3)
from OrginalTable
where userid=#userid
group by colm1,colm2
lets suppose this gives result like:
here after updating into Temp table, if multiple data then i need to do like below till 15 times:
Colm1,Com2,Colm3, colm1,colm2,colm3,
instead of creating new row I need this to be displayed as new field with in 1 row
execution result should be all in 1 row.
I am really confused whether I can do what is expected or not, if there is way please somebody give me examples or make it solution to this.
Lastly, appreciate your help

Answer 1

You could use UNPIVOT and then Dynamic PIVOT
DEMO
Setup:
create table temp (
col1 integer, col2 integer, col3 integer
)
insert into temp values (1, 1, 1000);
insert into temp values (1, 2, 500);
insert into temp values (2, 3, 800);
insert into temp values (2, 4, 700);
insert into temp values (3, 1, 1100);
UNPIVOT Query: You need a row_number to create a fake column name. But then overwrite the row to 1 for everyone, so all columns appear in a single row
WITH cte as (
SELECT row_number() over (order by col1, col2) as rn,
col1, col2, col3
FROM temp
)
SELECT 1 as rn,
'c_' +
CAST(rn AS VARCHAR(16)) + '_' +
myCol as myCol,
myVal
INTO temp2
FROM
(SELECT rn, col1, col2, col3
FROM cte) p
UNPIVOT
(myVal FOR myCol IN
(col1, col2, col3)
)AS unpvt;
SELECT * FROM temp2;
Dynamic Pivot:
DECLARE #cols AS NVARCHAR(MAX),
#query AS NVARCHAR(MAX);
SET #cols = STUFF((SELECT distinct ',' + QUOTENAME(c.myCol)
FROM temp2 c
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set #query = 'SELECT rn, ' + #cols + ' from
(
select rn
, myCol
, myVal
from temp2
) x
pivot
(
max(myVal)
for myCol in (' + #cols + ')
) p ';
EXEC sp_executesql #query
Output: Unpivot and Dynamic Pivot results

Answer 2

that sound like something you should do on your UI layer not for db.
Otherwise you need something like
SELECT t1.*, t2.*, ....... , t15.*
FROM yourTable as t1,
yourTable as t2,
......
yourTable as t15
WHERE t1.col1 >= t2.col1 and t1.col2 > t2.col2
AND t2.col1 >= t3.col1 and t2.col2 > t3.col2
....
AND t14.col1 >= t14.col15 and t14.col2 > t15.col2
The problem is you need to know there are 15 rows, so if that number change your query wont work.
That is why you should do it on UI instead