Você tentou:
SELECT pname from [TableName] WHERE quantity >= 10
EDITAR:
SELECT pname from Parts
INNER JOIN Shipments
ON Parts.ForeignKey = Shipments.ForeignKey
WHERE quantity >= 10
SELECT pname from [TableName] WHERE quantity >= 10
SELECT pname from Parts
INNER JOIN Shipments
ON Parts.ForeignKey = Shipments.ForeignKey
WHERE quantity >= 10