Oracle SQL组无法正常工作

我正在运行一个查询，以返回每周已完成作业的数量计数，根据单独的财务期间表将周细分为4周，但该查询未返回正确的计数

以下是代码示例：

select (SELECT (fp.financialperiod || ' week ' ||
ceil(floor((wo.actfinish - p.periodstart+1))/7))
        FROM maximo.financialperiods fp
       WHERE TRUNC (wo.actfinish) BETWEEN fp.periodstart
                                      AND fp.periodend) fin_period,
wo.wo8 as assetgroup,
Count(wo.wonum)
from maximo.workorder wo
where (TRUNC (wo.actfinish) BETWEEN TO_DATE (:startdate, 'DD/MM/YYYY')
                                    AND TO_DATE (:enddate, 'DD/MM/YYYY'))
group by wo.actfinish,
wo.wo8

---

我怀疑原因是您需要按第一列进行聚合。根据查询的结构，使用子查询最容易做到这一点：

select fin_period, wo.wo8, count(wo.wonum) as cnt
from (select (SELECT (fp.financialperiod || ' week ' || ceil(floor((wo.actfinish -    p.periodstart+1))/7))
              FROM maximo.financialperiods fp
              WHERE TRUNC (wo.actfinish) BETWEEN fp.periodstart AND fp.periodend
             ) as fin_period,
             wo.wo8 as assetgroup, wo.wonum
      from maximo.workorder wo
      where TRUNC(wo.actfinish) BETWEEN TO_DATE (:startdate, 'DD/MM/YYYY')
                                    AND TO_DATE (:enddate, 'DD/MM/YYYY')
     ) t
group by fin_period, wo.wo8;

---

请给出一些示例数据和一些示例结果，解释为什么这些结果不是您想要/期望的结果。这不起作用，因为fp.financialperiod是子查询中的对象，而不是主查询

select fin_period, wo.wo8, count(wo.wonum) as cnt
from (select (SELECT (fp.financialperiod || ' week ' || ceil(floor((wo.actfinish -    p.periodstart+1))/7))
              FROM maximo.financialperiods fp
              WHERE TRUNC (wo.actfinish) BETWEEN fp.periodstart AND fp.periodend
             ) as fin_period,
             wo.wo8 as assetgroup, wo.wonum
      from maximo.workorder wo
      where TRUNC(wo.actfinish) BETWEEN TO_DATE (:startdate, 'DD/MM/YYYY')
                                    AND TO_DATE (:enddate, 'DD/MM/YYYY')
     ) t
group by fin_period, wo.wo8;