SELECT empRef_ID , mkt_route_ID=
STUFF((SELECT '/ ' + cast(mkt_route_ID as varchar)
FROM table_2 b
WHERE b.sl_No = a.sl_No
FOR XML PATH('')), 1, 2, ''),sl_No
FROM table_2 a
GROUP BY empRef_ID,sl_No
SELECT empRef_ID , mkt_route_ID=
STUFF((SELECT '/ ' + cast(mkt_route_ID as varchar)
FROM table_2 b
WHERE b.sl_No = a.sl_No
FOR XML PATH('')), 1, 2, ''),sl_No
FROM table_2 a
GROUP BY empRef_ID,sl_No