select o.name, xl.name, 'SYS', nvl(xl.dir, xt.default_dir)
from sys.external_location$ xl, sys.obj$ o, sys.external_tab$ xt
where o.owner# = userenv('SCHEMAID')
and o.obj# = xl.obj#
and o.obj# = xt.obj#
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SELECT O.NAME , XL.NAME , 'SYS' , NVL(XL.DIR , XT.DEFAULT_DIR)
FROM SYS.EXTERNAL_LOCATION$ XL , SYS.OBJ$ O , SYS.EXTERNAL_TAB$ XT
WHERE O.OWNER# = USERENV('SCHEMAID')
AND O.OBJ# = XL.OBJ#
AND O.OBJ# = XT.OBJ#