1SELECT "" as Serial,
2 "" as Object_ID,
3 "" as ObjectDEsc,
4 "" as Object_Num,
5 "--(UNKNOWN -- )" as DropList
6UNION
7 SELECT CAST(p.Serial AS UNSIGNED INTEGER) as Serial,
8 p.Object_ID,
9 p.Part_ID,
10 st.Description AS ObjectDesc,
11 s.Object_Num,
12 concat(Serial,' (',st.Desc,' #',s.Object_Num,')') as DropList
13 FROM Parts p LEFT JOIN Objects s ON p.Object_ID = s.Object_ID
14 LEFT JOIN ObjectTypes st ON s.ObjectType_ID = st.ObjectType_ID