declare @table as table
 (id int)
 
 INSERT INTO @table

 
SELECT 100 UNION ALL
SELECT 101 UNION ALL
SELECT 102 UNION ALL
SELECT 103 UNION ALL
 SELECT 104 
 
 
 SELECT STUFF((SELECT ',' + CAST(id AS VARCHAR (3))  FROM @table t1  ORDER BY t1.id  FOR XML PATH('')),1,1,'')