Problem of Uncertain no. of columns

Question

Hi,
I have a requirement where I have to insert data into a pre-defined table (with 'x'  no. of columns) from dynamically generated SELECT statements (through a proc) . example, 
INSERT INTO Table 
EXEC Proc
Problem is, that some of those SELECT statements may not have 'x' no. of columns. Any idea will be really helpful.
I have tried some hit and trial but all in vein.
'In Persuit of Happiness' and ..... learning SQL.

Answer 1

Ok. you've two options in that case
1. use a temporary table with same structure as SP output and populate it as below
INSERT #Temp
EXEC Proc...
Now use temp table to fill your table
INSERT YourTable (col1,col2,col3,..)
SELECT Col1,NULL,Col2,...
FROM #Temp
fill missing columns with NULL values
2. use a direct select based on distributed query
INSERT YourTable (Col1,Col2,Col3,..)
Select Col1,NULL,Col2,..
from
OPENROWSET('SQLOLEDB','Data Source=Servername;Trusted_Connection=yes;
Integrated Security=SSPI','Execute yourdbname..Proc')
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