Question

我正在尝试加入两个查询，其中唯一的区别在于子句 RECIP like '44%' ==> RECIP not like '44%' 并具有唯一的输出

   select FIELD1, FIELD2, FIELD3-PART, sum(c) from
   ( select FIELD1, FIELD2, SUBSTR(FIELD3, 1, 2) as FIELD3-PART, count(*) as c from
    table
   where timestamp between sysdate - interval '120' minute and sysdate - interval '2' minute 
   FIELD3 is not null and FIELD3 like '44%'
   group by FIELD1, FIELD2, FIELD3)
   group by FIELD1, FIELD2, FIELD3-PART
   HAVING ((sum(c) > '150' and SUBSTR(ORIG, 1,6)='333441')  
   or (sum(c) > '100' and SUBSTR(FIELD2, 1,6)='333442')      
   or (sum(c) > '250' and SUBSTR(FIELD2, 1,6)='333443')
   or (sum(c) > '10' and SUBSTR(FIELD2, 1,6)='333444'));
   
   select FIELD1, FIELD2, FIELD3-PART, sum(c) from
   ( select FIELD1, FIELD2, SUBSTR(FIELD3, 1, 2) as FIELD3-PART, count(*) as c from
    table
   where timestamp between sysdate - interval '120' minute and sysdate - interval '2' minute 
   FIELD3 is not null and FIELD3 not like '44%'
   group by FIELD1, FIELD2, FIELD3)
   group by FIELD1, FIELD2, FIELD3-PART
   HAVING ((sum(c) > '150' and SUBSTR(ORIG, 1,6)='333441')  
   or (sum(c) > '100' and SUBSTR(FIELD2, 1,6)='333442')      
   or (sum(c) > '250' and SUBSTR(FIELD2, 1,6)='333443')
   or (sum(c) > '10' and SUBSTR(FIELD2, 1,6)='333444'));

我知道肯定有更“优雅”的方式来执行查询并获得我需要的输出，但我不是 sql 专家，实际上这两个查询工作得很好。谢谢卢卡斯

Answer 1

您可以将查询更新为 -

select FIELD1,
       FIELD2,
       FIELD3-PART,
       sum(c)
  from (select FIELD1,
               FIELD2,
               SUBSTR(FIELD3, 1, 2) as FIELD3-PART,
               count(*) as c
          from table
         where timestamp between sysdate - interval '120' minute and sysdate - interval '2' minute 
           -- AND FIELD3 is not null        -- No need to use this line as LIKE predicate automatically filters null values.
           and FIELD3 like '44%'
         group by FIELD1, FIELD2, SUBSTR(FIELD3, 1, 2))
 group by FIELD1, FIELD2, FIELD3-PART
HAVING sum(c) > '50' 
   and SUBSTR(ORIG, 1,6) IN ('333441', '333442', '333443', '333444');

我仍然怀疑您的查询是否有效，因为没有任何东西叫做 ORIG（在 HAVING 子句中使用），我可以在您的查询中看到。

ORACLE 将两个查询合二为一

1 个答案: