查询未正确运行

Question

  

错误代码ORA-00923：找不到FROM关键字

  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

您在item_no和sum表达式之间缺少逗号：

  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;