At 2021-01-25T14:17:42-05:00, James B. Byrne <byrnejb(at)harte-lyne(dot)ca> sent:
> postgres : STATEMENT: INSERT INTO public.stock(
> stock_num, manu_code, description, unit_price, unit, unit_descr)
> VALUES (3, "SHM", "aluminum Bat", 180.00, "case", "12/case");
> postgres : ERROR: 42703: column "SHM" does not exist at character 105
> postgres : LOCATION: errorMissingColumn, parse_relation.c:3194
You're using double-quotes rather than single-quotes for string values.
"SHM" = column
'SHM' = string value