>Given a SQL2008 table structure:
>
>Id, ColumnId, RowId
>1 1 1
>2 1 2
>3 2 1
>4 2 2
>
>How do I convert it to:
>
>Row, Column1 Column2
> 1 1 3
> 2 2 4
>
>In case it's relevant the values are all GUIDS rather than ints and there will be more columns (and, obviously, rows)
>(Sorry about the spacing....)

I think Linq approach is better as I said in my previous message. Using pivot is not appealing because it is simply an expansion of a syntax like:

sum( iif( ColumnID = 1, 1,0) ) as Column1,
sum( iif( ColumnID = 2, 1,0) ) as Column2

It provides typing ease, but doesn't offer performance. Doing the pivoting yourself it is faster.
Cetin