SQL PIVOT SELECT FROM LIST (IN SELECT)

Question

Is it possible to do a PIVOT and select list from a table, instead of using single values?

Like this (incorrect syntax error):

SELECT *
FROM (
    SE         


        

Answer 1

It Can be done.

DECLARE @idList varchar(500)
SET @idList = COALESCE(@idList + ',', '') + id
FROM m


DECLARE @sqlToRun varchar(1000)
SET @sqlToRun = '
SELECT * 
FROM ( 
    SELECT RepID, MilestoneID, ResultID FROM RM 
) AS src 
PIVOT ( 
    MAX(ResultID) FOR MilestoneID IN  ('+ @idList +')  
) AS pvt'   

EXEC (@sqlToRun)

Answer 2

If dynamic SQL is out then I'm afraid the answer is no, it can't be done. The parser needs to know the values up front to perform the pivot to columns.