SELECT emailAddress, Answer, datestamp FROM ( SELECT DISTINCT emailAddress, Answer, datestamp, ROW_NUMBER() OVER(PARTITION BY emailAddress ORDER BY datestamp DESC) as RowNum FROM I220040_Polling_Subindustries ) t2 WHERE RowNum = 1
SELECT emailAddress, Answer, datestamp FROM ( SELECT DISTINCT emailAddress, Answer, datestamp, ROW_NUMBER() OVER(PARTITION BY emailAddress ORDER BY datestamp DESC) as RowNum FROM I220040_Polling_Subindustries ) t2 WHERE RowNum = 1