Question

我在下面做错了什么？

select D_OPERATION_DATE, count(*)
from 
(select to_char(D_OPERATION_DATE, 'MON') D_OPERATION_DATE, SUM (N_OPERATION_FEE) from SBM_BILLING_RESULT where c_operation_type='Commit' and C_RESULT_STATUS='SUCCESS')
group by D_OPERATION_DATE;

错误：   ORA-00937：不是单组组功能   00937. 00000 - “不是单组小组的功能”   *原因：
  *行动：   行错误：13列：17

任何线索？

Answer 1

您在内部语句中使用'sum（）'与单个列名'to_char（D_OPERATION_DATE，'MON'）'。在这种情况下，你需要'GROUP BY to_char（D_OPERATION_DATE，'MON'）'到内部语句的结尾。

    select D_OPERATION_DATE, count(*) 
from (
    select to_char(D_OPERATION_DATE, 'MON') D_OPERATION_DATE, SUM (N_OPERATION_FEE) 
    from SBM_BILLING_RESULT 
    where c_operation_type='Commit' and C_RESULT_STATUS='SUCCESS' 
    GROUP BY to_char(D_OPERATION_DATE, 'MON')
    )
group by D_OPERATION_DATE;

需要sqlplus查询帮助，执行时收到错误

1 个答案: