I can't figure this out in postgresql
:
SELECT Week1.Material, Week1.VALa, Week1.MVGavgprice, concat(Week1.Material, Week1.VALa)
FROM "Week1"
ERROR:
missing FROM-clause entry for table "week1" LINE 1: SELECT Week1.Material, Week1.VALa, Week1.MVGavgprice, concat... ^ SQL state: 42P01 Character: 8