Запрос не работает правильно

Question

КОД ОШИБКИ ORA-00923: ключевое слово FROM не найдено там, где ожидается

  SELECT invoice_no,
         item_no
         SUM (
              invoice_ship_handle
            + invoice_tax
            + invoice_deposit
            + item_unit_price * item_qty_shipped)
            AS "Total Item Cost"
    FROM invoices_s, items_sold_s
GROUP BY item_no, invoice_no
ORDER BY SUM (
              invoice_ship_handle
            + invoice_tax
            + invoice_deposit
            + item_unit_price * item_qty_shipped) DESC;

Answer 1

Вам не хватает запятой между item_no и sum выражением:

  SELECT invoice_no,
         item_no,
         -- Here^
         SUM (
              invoice_ship_handle
            + invoice_tax
            + invoice_deposit
            + item_unit_price * item_qty_shipped)
            AS "Total Item Cost"
    FROM invoices_s, items_sold_s
GROUP BY item_no, invoice_no
ORDER BY SUM (
              invoice_ship_handle
            + invoice_tax
            + invoice_deposit
            + item_unit_price * item_qty_shipped) DESC;