Question

我有UNION ALL查询，它给出了多行结果集的结果我想总结只有具有某些条件的行的值为真例如：

ELECT P_ID pid,   P_COUNT pcount  from
 ( 
   SELECT  pid, ROUND(SUM(pcount*1)) pcount  , OBJ_ID objId 
   FROM  SEARCH_H  
   WHERE  objId = '1' and  pstart <= ADD_MONTHS(TO_DATE('05/01/2018 12:00 AM', 'MM/DD/YYYY HH12:MI AM'), -3)   
   GROUP BY  objId,  pid          

 UNION ALL  

   SELECT  pid,  ROUND(SUM(  pcount*2)) pcount ,  OBJ_ID objId 
   FROM  SEARCH_H   
   WHERE  objId ='1' and pstart > TO_DATE('05/01/2018 12:00 AM', 'MM/DD/YYYY HH12:MI AM')  
   GROUP BY  objId,  pid  

 ) results
 ORDER BY pcount desc ;

现在表格是：

P_ID(VARCHAR2),
OBJ_ID(VARCHAR2), 
P_COUNT(NUMBER),
pstart(TIMESTAMP)

数据

1,1,1,05/01/2018 12:00
1,2,1,05/01/2018 12:00
33,2,1,05/01/2018 12:00
1,1,1,05/01/2018 12:00

1,1,1,06/01/2018 12:00
1,2,1,06/01/2018 12:00
1,2,1,06/01/2018 12:00
33,1,1,06/01/2018 12:00

所以结果将是：

1,9
33,3

到目前为止，我的搜索结果如下：我的问题是每个人分别选择其结果所以现在我的结果是：

我真的被困在这里......

Answer 1

我认为您需要在主查询中进行分组（再次），如：

SELECT P_ID pid, sum(pcount) from
 ( 
   SELECT  pid, ROUND(SUM(pcount*1)) pcount  , OBJ_ID objId 
   FROM  SEARCH_H  
   WHERE  objId = '13089' and  pstart <= ADD_MONTHS(TO_DATE(
     '05/01/2018 12:00 AM', 'MM/DD/YYYY HH12:MI AM'), -3)   
   GROUP BY  objId,  pid          

 UNION ALL  

   SELECT  pid,  ROUND(SUM(  pcount*2)) pcount ,  OBJ_ID objId 
   FROM  SEARCH_H   
   WHERE  objId ='13089' and pstart > TO_DATE(
     '05/01/2018 12:00 AM', 'MM/DD/YYYY HH12:MI AM')  
   GROUP BY  objId,  pid  

 ) results
 group by pid
 ORDER BY pcount desc ;

Answer 2

我认为您不需要UNION ALL（或任何类型的UNION），因为我认为您正在努力实现这一目标。

我有一些问题需要理解你的问题，但如果我说得对，也许这就是你要找的：

select p_id, obj_id, round(sum(p_count)) p_count
from (
    select  p_id, obj_id,
       case
          when pstart <= add_months(to_date('05/01/2018 12:00 AM', 'MM/DD/YYYY HH12:MI AM'), -3)  then p_count*1
          when pstart >  to_date('05/01/2018 12:00 AM', 'MM/DD/YYYY HH12:MI AM')                  then p_count*2
       end p_count
    from search_h       
    )
group by p_id, obj_id
order by p_count desc;

如何将列的值与所有列的总和

2 个答案: