Question

在oracle中编译代码时出错，错误是ORA-00979：不是GROUP BY表达式，我想知道如何解决这个问题，因为函数ORDER BY，而不是我使用GROUP BY和 SUM不服务我。

SELECT
            INVOICE.CUS_CODE,

            CUSTOMER.CUS_BALANCE,

            SUM(LINE.LINE_UNITS * LINE.LINE_PRICE )AS "TOTAL PURCHASES"

FROM
            INVOICE, CUSTOMER, LINE

WHERE
            CUSTOMER.CUS_CODE = INVOICE.CUS_CODE  AND INVOICE.INV_NUMBER= LINE.INV_NUMBER

GROUP BY
            INVOICE.CUS_CODE

Answer 1

根据WW的建议，您需要将CUS_BALANCE添加到group by子句中。

试试这个，

SELECT invoice.cus_code,
       customer.cus_balance,
       sum(line.line_units * line.line_price )AS "TOTAL PURCHASES"
FROM   invoice, customer, line
WHERE  customer.cus_code = invoice.cus_code  
AND    invoice.inv_number= line.inv_number
GROUP BY invoice.cus_code, customer.cus_balance;

ORA-00979：不是GROUP BY

1 个答案: