Oracle 加入CTE时出错

我有2个CTE。当我尝试加入他们时，我会收到一条错误消息“ORA-01789:”。我如何合并2个CTE。是否有其他方法来获得所需的结果

WITH IMPORT_CTE 
AS  ((select A.*
FROM IMPORT_REGISTRY_ERROR_LOG_1 A
INNER JOIN (select distinct POD_ID,CONFLICTED_POD_ID,ERROR_CODE
             FROM IMPORT_REGISTRY_ERROR_LOG_1 
             GROUP BY POD_ID,CONFLICTED_POD_ID,ERROR_CODE
             HAVING COUNT(*) > 1) B
on  A.POD_ID = B.POD_ID AND A.CONFLICTED_POD_ID = B.CONFLICTED_POD_ID AND A.ERROR_CODE = B.ERROR_CODE  ) order by a.pod_id desc)
select t1.*
from IMPORT_CTE t1
where t1.insert_date =(select max(t2.insert_date)
                        from IMPORT_CTE t2
                       where t2.POD_ID =t1.POD_ID)


WITH IMPORT_CTE1 
AS  ((select A.*
FROM IMPORT_REGISTRY_ERROR_LOG_1 A
INNER JOIN (select distinct POD_ID,CONFLICTED_POD_ID,ERROR_CODE
             FROM IMPORT_REGISTRY_ERROR_LOG_1 
             GROUP BY POD_ID,CONFLICTED_POD_ID,ERROR_CODE
             HAVING COUNT(*) > 1) B
on  A.POD_ID = B.POD_ID AND A.CONFLICTED_POD_ID = B.CONFLICTED_POD_ID AND A.ERROR_CODE = B.ERROR_CODE  ) order by a.pod_id desc)
select t1.insert_date 
from IMPORT_CTE1 t1
where t1.insert_date =(select min(t2.insert_date)
                        from IMPORT_CTE1 t2
                       where t2.POD_ID =t1.POD_ID)

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在每个查询中都有一组额外的括号。第一个显然应该是：

WITH IMPORT_CTE AS
      (select A.*
         FROM IMPORT_REGISTRY_ERROR_LOG_1 A
         INNER JOIN (select distinct POD_ID,CONFLICTED_POD_ID,ERROR_CODE
                       FROM IMPORT_REGISTRY_ERROR_LOG_1 
                       GROUP BY POD_ID,CONFLICTED_POD_ID,ERROR_CODE
                       HAVING COUNT(*) > 1) B
           on A.POD_ID = B.POD_ID AND
              A.CONFLICTED_POD_ID = B.CONFLICTED_POD_ID AND
              A.ERROR_CODE = B.ERROR_CODE
         order by a.pod_id desc)
select t1.*
  from IMPORT_CTE t1
  where t1.insert_date = (select max(t2.insert_date)
                            from IMPORT_CTE t2
                            where t2.POD_ID = t1.POD_ID)

第二个也有类似的问题

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祝你好运。

你忘了告诉你想要的结果你要加入他们吗？@Prdp想要的结果是加入两个查询。但是我不能使用union加入，因为在两个查询中提取的列数都是有限的different@AlexPoole我试着使用union all加入，但它不起作用，因为我能看到CTE是一样的，所以你想要一个针对CTE的单一查询，这是你现在拥有的两个联合体-那么你得到了最小和最大日期？关于列数的错误似乎很明显。你为什么要和一个工会合作？