$w@t (11/27/2013)
Try this
declare @ColumnNameList VARCHAR(MAX)
SELECT @ColumnNameList = COALESCE(@ColumnNameList +',' ,'') + ColumnName
FROM
<<table name>>
select @ColumnNameList
While this works for the specific case described by the OP, indexing on the table might impact the order the rows are concatenated in. I suggest you take a look at the link provided by Sean to Wayne Sheffield's article for a much more generally useful solution.
My thought question: Have you ever been told that your query runs too fast?
My advice:
INDEXing a poor-performing query is like putting sugar on cat food. Yeah, it probably tastes better but are you sure you want to eat it?
The path of least resistance can be a slippery slope. Take care that fixing your fixes of fixes doesn't snowball and end up costing you more than fixing the root cause would have in the first place.
Need to UNPIVOT? Why not CROSS APPLY VALUES instead?[/url]
Since random numbers are too important to be left to chance, let's generate some![/url]
Learn to understand recursive CTEs by example.[/url]
[url url=http://www.sqlservercentral.com/articles/St