Sql 修改Select语句以对单个字段求和

我有下面的select语句，它提取了我需要的所有数据，但我正在尝试修改它，以便按生产日期的班次汇总拒绝

SELECT B.PROD_DATE,B.SHIFT,B.REJECTS
FROM REJECTS B 
LEFT OUTER JOIN HIST_ILLUM_PART C ON B.HIST_ILLUM_PART_ID = C.ID
LEFT OUTER JOIN HIST_ILLUM_RT A ON A.ID = C.HIST_ILLUM_RT_ID
WHERE
B. REJECT_CODE NOT in ('START','SETUP','QC')
AND B.PROD_DATE >= SYSDATE - 8
ORDER BY SHIFT, PROD_DATE

我试过了

   SELECT B.PROD_DATE,B.SHIFT,SUM(B.REJECTS)

我收到以下错误：ORA-00937：没有单个组函数

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是否需要子查询？

在进行聚合时，将GROUPBY子句添加到查询中。在伪代码中，它意味着对于B.PROD_DATE和B.SHIFT的每个不同组，获得该组的所有B.REJECTS的总和

SELECT B.PROD_DATE,B.SHIFT,SUM(B.REJECTS) AS REJECTS
FROM REJECTS B 
LEFT OUTER JOIN HIST_ILLUM_PART C ON B.HIST_ILLUM_PART_ID = C.ID
LEFT OUTER JOIN HIST_ILLUM_RT A ON A.ID = C.HIST_ILLUM_RT_ID
WHERE
B. REJECT_CODE NOT in ('START','SETUP','QC')
AND B.PROD_DATE >= SYSDATE - 8
GROUP BY B.PROD_DATE,B.SHIFT
ORDER BY SHIFT, PROD_DATE

---

在进行聚合时，将GROUPBY子句添加到查询中。在伪代码中，它意味着对于B.PROD_DATE和B.SHIFT的每个不同组，获得该组的所有B.REJECTS的总和

SELECT B.PROD_DATE,B.SHIFT,SUM(B.REJECTS) AS REJECTS
FROM REJECTS B 
LEFT OUTER JOIN HIST_ILLUM_PART C ON B.HIST_ILLUM_PART_ID = C.ID
LEFT OUTER JOIN HIST_ILLUM_RT A ON A.ID = C.HIST_ILLUM_RT_ID
WHERE
B. REJECT_CODE NOT in ('START','SETUP','QC')
AND B.PROD_DATE >= SYSDATE - 8
GROUP BY B.PROD_DATE,B.SHIFT
ORDER BY SHIFT, PROD_DATE

可能的重复可能的重复