<ITEMS><ITEM SEQ="0" INDNO="50814" DRN="N00230000004816012012" CR_GUID="FB64CD73-8048-4775-81F2-969AE2AB442C" DR_GUID="8025D121-E3B6-4479-A393-CDDC5BEB53C0" CR_ACC="" DR_ACC="" AMOUNT="0" DATE="20120202" /></ITEMS>
create table YourTable
(
XMLColumn xml
)
insert into YourTable values
('<ITEMS><ITEM SEQ="0" INDNO="50814" DRN="N00230000004816012012" CR_GUID="FB64CD73-8048-4775-81F2-969AE2AB442C" DR_GUID="8025D121-E3B6-4479-A393-CDDC5BEB53C0" CR_ACC="" DR_ACC="" AMOUNT="0" DATE="20120202" /></ITEMS>')
select I.N.value('@DRN', 'varchar(50)') as DRN
from YourTable as T
cross apply T.XMLColumn.nodes('/ITEMS/ITEM') as I(N)
| DRN |
-------------------------
| N00230000004816012012 |