T-SQL Dynamic table create - sql

Question

So this is kind of a follow on from my last question
I have a string that looks like this:
Acc_id,Field label,Data point
I'd like to create a table from the above string using somthing like
CREATE TABLE #temp
(Acc_id NVARCHAR(MAX),
Field label REAL,
Data point REAL)
The commas seperate the columns - it needs to be dynamic so if more columns appear they get created in the table.
UPDATE:
this is what I have thus far from the net but i need to make the first column NVARCHAR and the rest REAL rather than the other way round.
declare #path NVARCHAR(MAX)
SET #path = 'c:\temp\Book2.txt'
declare #execSQL nvarchar(1000)
declare #tempstr varchar(1000)
declare #col varchar(1000)
declare #table nvarchar(1000)
-- Create a temp table to with one column to hold the first row of the csv file
CREATE TABLE #tbl (line VARCHAR(1000))
SET #execSQL =
'BULK INSERT #tbl
FROM ''' + #path + '''
WITH (
FIELDTERMINATOR ='','',
FIRSTROW = 1,
ROWTERMINATOR = ''\n'',
LASTROW = 1
)
'
EXEC sp_executesql #stmt=#execSQL
update #tbl set line = REPLACE(line,' ','_') where line like '% %'
SET #col = ''
SET #tempstr = (SELECT TOP 1 RTRIM(REPLACE(Line, CHAR(9), ',')) FROM #tbl)
DROP TABLE #tbl
WHILE CHARINDEX(',',#tempstr) > 0
BEGIN
SET #col=#col + LTRIM(RTRIM(SUBSTRING(#tempstr, 1, CHARINDEX(',',#tempstr)-1))) + ' varchar(100),'
SET #tempstr = SUBSTRING(#tempstr, CHARINDEX(',',#tempstr)+1, len(#tempstr))
END
SET #col = #col + #tempstr + ' real'
IF Object_id('tempdb..##temptable') IS NOT NULL
DROP TABLE #temptable
SET #table = 'create table ##temptable (' + #col + ')'
EXEC sp_executesql #stmt=#table
-- Load data from csv
SET #execSQL =
'BULK INSERT ##temptable
FROM ''' + #path + '''
WITH (
FIELDTERMINATOR ='','',
FIRSTROW = 2,
ROWTERMINATOR = ''\n''
)
'
EXEC sp_executesql #stmt=#execSQL
Thank you
Rob

Answer 1

The Following works perfectly for what I want to do
declare #path NVARCHAR(MAX)
SET #path = 'c:\temp\Book2.txt'
declare #execSQL nvarchar(1000)
declare #tempstr varchar(1000)
declare #col varchar(1000)
declare #table nvarchar(1000)
-- Create a temp table to with one column to hold the first row of the csv file
IF Object_id('tempdb..#tbl') IS NOT NULL
DROP TABLE #tbl
CREATE TABLE #tbl (line VARCHAR(1000))
SET #execSQL =
'BULK INSERT #tbl
FROM ''' + #path + '''
WITH (
FIELDTERMINATOR ='','',
FIRSTROW = 1,
ROWTERMINATOR = ''\n'',
LASTROW = 1
)
'
EXEC sp_executesql #stmt=#execSQL
update #tbl set line = REPLACE(line,' ','_') where line like '% %'
SET #col = ''
SET #tempstr = (SELECT TOP 1 RTRIM(REPLACE(Line, CHAR(9), ',')) FROM #tbl)
DROP TABLE #tbl
SET #col=#col + LTRIM(RTRIM(SUBSTRING(#tempstr, 1, CHARINDEX(',',#tempstr)-1))) + ' nvarchar(max),'
SET #tempstr = SUBSTRING(#tempstr, CHARINDEX(',',#tempstr)+1, len(#tempstr))
WHILE CHARINDEX(',',#tempstr) > 0
BEGIN
SET #col=#col + LTRIM(RTRIM(SUBSTRING(#tempstr, 1, CHARINDEX(',',#tempstr)-1))) + ' nvarchar(max),'
SET #tempstr = SUBSTRING(#tempstr, CHARINDEX(',',#tempstr)+1, len(#tempstr))
END
SET #col = #col + #tempstr + ' real'
IF Object_id('tempdb..##temptable') IS NOT NULL
DROP TABLE ##temptable
SET #table = 'create table ##temptable (' + #col + ')'
EXEC sp_executesql #stmt=#table
-- Load data from csv
SET #execSQL =
'BULK INSERT ##temptable
FROM ''' + #path + '''
WITH (
FIELDTERMINATOR ='','',
FIRSTROW = 2,
ROWTERMINATOR = ''\n''
)
'
EXEC sp_executesql #stmt=#execSQL
select * from ##temptable

Answer 2

I would suggest doing a while loop and concatenating a string together for your table creation. This can beuseful for parsing through delimiter-separated lists. Something similar to the below should get you started.
set #IDList='Field1,Field2,Field3,'
set #i=1
set #pos = patindex('%,%' , #IDList)
while #pos <> 0 begin
-- Loop through Elements
set #CurrentID= isnull(left(#IDList, #pos-1),null)
set #SQLConstructor=#SQLConstructor+',sum('+#CurrentID+') as Column'+#si
--- Reset loop
set #IDList = stuff(#IDList, 1, #pos, '')
set #pos = patindex('%,%' , #IDList)
set #i=#i+1
end