Insert query results into temp table - sql

Question

I've recently learned from here how to do PIVOT in SQL, and I actually took an example from the other question on here. It works perfectly.
However, I want to perform additional joins, after the query, but I am unable to insert into temporary table the results of query? How may I do that?
Create table
CREATE TABLE yt
([Store] int, [Week] int, [xCount] int)
;
INSERT INTO yt
([Store], [Week], [xCount])
VALUES
(102, 1, 96),
(101, 1, 138),
(105, 1, 37),
(109, 1, 59),
(101, 2, 282),
(102, 2, 212),
(105, 2, 78),
(109, 2, 97),
(105, 3, 60),
(102, 3, 123),
(101, 3, 220),
(109, 3, 87);
Perform pivoting query
DECLARE #cols AS NVARCHAR(MAX),
#query AS NVARCHAR(MAX)
select #cols = STUFF((SELECT ',' + QUOTENAME(Week)
from yt
group by Week
order by Week
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set #query = 'SELECT store,' + #cols + ' from
(
select store, week, xCount
from yt
) x
pivot
(
sum(xCount)
for week in (' + #cols + ')
) p '
execute(#query)
The result is
store 1 2 3
101 138 282 220
102 96 212 123
105 37 78 60
109 59 97 87
But Id like to have it in #temp table, and I tried placing INTO #temp before 'Execute Query' and before FROM statement within Query.
Any idea? I am aware of SELECT * INTO #temp FROM BlaBla but seems its diff with Queries.

Answer 1

You can create a global temp table dynamically
declare #tblName nvarchar(10)
set #tblName = N'##Temp' + cast(##spid as nvarchar(5))
declare #tblCreate nvarchar(max)
SET #tblCreate = N'create table ' + #tblName + ' ('
+ REPLACE(#cols,',',' int,') + N' int)'
EXECUTE sp_executesql #tblCreate
And then edit your #query to insert into the table.
set #query = 'INSERT INTO ' + #tblName + ' SELECT store,' + #cols + ' from
(
select store, week, xCount
from yt
) x
pivot
(
sum(xCount)
for week in (' + #cols + ')
) p;
drop table ' + #tblName
execute(#query)

Answer 2

The problem you're facing with select ... into #temp inside the execute is that the table gets created, but due to being in separate scope, it gets dropped immediately when the execute ends, so your procedure can't see it.
Your code will work, if you create the table before calling execute and just use insert into. You can check this in SQL Fiddle. This just causes the problem that if your query is dynamic, how to create the table so that it fits the query.
Trying to create logic where you dynamically adjust the number of columns in SQL is not simple to do, and really isn't something you should be doing. Better way would be to handle that in your presentation layer.

Answer 3

DECLARE #cols AS NVARCHAR(MAX),
#query AS NVARCHAR(MAX)
select #cols = STUFF((SELECT ',' + QUOTENAME(Week)
from yt
group by Week
order by Week
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set #query = 'SELECT store,' + #cols + ' Into ##tempyt from
(
select store, week, xCount
from yt
) x
pivot
(
sum(xCount)
for week in (' + #cols + ')
) p '
DROP TABLE IF EXISTS ##tempyt;
execute(#query);
select * from TempDB.sys.##tempyt