Not a singlenot a single-group group 函数 ORA-00937: Oracle

【问题标题】：Not a singlenot a single-group group function ORA-00937: OracleNot a singlenot a single-group group 函数 ORA-00937: Oracle
【发布时间】：2022-09-23 21:44:37
【问题描述】：

我可以在最高级别做什么来更改此错误
ORA-00937: 不是单组组函数 00937. 00000 - “不是单组群功能” *原因：
*行动：行错误：3 列：5

     select
       year,
       Net_TWRR_PERIOD,
     round(((CASE WHEN MOD(SUM(CASE WHEN     
(   Net_TWRR_PERIOD ) <0 then 1 else 0  end ), 2 )=1                                                       THEN -1 ELSE 1 END *    EXP(SUM(LN(ABS(Net_TWRR_PERIOD)))))-1)*100,2)

    from (select
      year,

       round(((CASE WHEN MOD(SUM(CASE WHEN (Net_TWRR ) <0 then 1 else 0 end ), 2 )=1    THEN -1          ELSE 1 END *    EXP(SUM(LN(ABS(Net_TWRR)))))-1)*100,2) as Net_TWRR_PERIOD
      from

       (select ( net_rate_of_return / 100 + 1) as Net_TWRR,

     year

     from eom
    WHERE   id =  \'2\'
                       and start_date < \'09-September-2022\'
      ) group by year order by year)

标签： oracle

【解决方案1】：

你有外部查询：

select year,
       Net_TWRR_PERIOD,
       round(
        (
          CASE
          WHEN MOD(SUM(CASE WHEN Net_TWRR_PERIOD < 0 then 1 else 0 end ), 2)=1
          THEN -1
          ELSE 1
          END
          * EXP(SUM(LN(ABS(Net_TWRR_PERIOD))))
          -1
        ) * 100,
        2
      )
from  ( ... )

其中混合了聚合列和非聚合列，并且您没有 GROUP BY 子句（在该外部查询中）。您需要确保所有列都聚合或包含在GROUP BY 中。

因此，将外部查询更改为：

select year,
       Net_TWRR_PERIOD,
       round(
        (
          CASE
          WHEN MOD(SUM(CASE WHEN Net_TWRR_PERIOD < 0 then 1 else 0 end ), 2)=1
          THEN -1
          ELSE 1
          END
          * EXP(SUM(LN(ABS(Net_TWRR_PERIOD))))
          -1
        ) * 100,
        2
      )
from  ( ... )
GROUP BY year, Net_TWRR_PERIOD

【讨论】：