55

嗨，我只是选择并且效果很好：

select 'CARAT Issue Open' issue_comment, i.issue_id, i.issue_status, i.issue_title, i.ISSUE_summary ,i.issue_description, i.severity,
gcrs.Area_name, gcrs.sector_name,

substr(gcrs.stream_name,1,case when instr(gcrs.stream_name,' (')=0 then 100 else instr(gcrs.stream_name,' (')-1 end) ISSUE_DIVISION,

case when gcrs.STREAM_NAME like 'NON-GT%' THEN 'NON-GT' ELSE gcrs.STREAM_NAME END as ISSUE_DIVISION_2


from table(f_carat_issues_as_of('31/MAR/2013')) i
inner join v_gcrs_with_stream gcrs on i.segment_id = gcrs.segment_id

where UPPER(ISSUE_STATUS) like '%OPEN%'

现在我想调用两列：ISSUE_DIVISION 和 ISSUE_DIVISION_2

如果它们在新列中相等，则应为值 1 如果不相等则应为 0，

我该怎么做 ？

我的完整代码：

select 'CARAT Issue Open' issue_comment, i.issue_id, i.issue_status, i.issue_title, i.ISSUE_summary ,i.issue_description, i.severity,
gcrs.Area_name, gcrs.sector_name,

substr(gcrs.stream_name,1,case when instr(gcrs.stream_name,' (')=0 then 100 else instr(gcrs.stream_name,' (')-1 end) ISSUE_DIVISION,

case when gcrs.STREAM_NAME like 'NON-GT%' THEN 'NON-GT' ELSE gcrs.STREAM_NAME END as ISSUE_DIVISION_2


from table(f_carat_issues_as_of('31/MAR/2013')) i
inner join v_gcrs_with_stream gcrs on i.segment_id = gcrs.segment_id

where UPPER(ISSUE_STATUS) like '%OPEN%' and 

CASE WHEN ISSUE_DIVISION = ISSUE_DIVISION_2 THEN 
     CASE WHEN  ISSUE_DIVISION is null then "Null Value found"
     Else 1 End
ELSE 0 END As Issue_Division_Result

但我在线收到错误：ELSE 0 END As Issue_Division_Result

ORA-00920: 无效的关系运算符 :(

4

4 回答 4

85 
SELECT (CASE WHEN ISSUE_DIVISION = ISSUE_DIVISION_2 THEN 1 ELSE 0 END) AS ISSUES
    --  <add any columns to outer select from inner query> 
  FROM
 (  -- your query here --
   select 'CARAT Issue Open' issue_comment, ...., ..., 
          substr(gcrs.stream_name,1,case when instr(gcrs.stream_name,' (')=0 then 100 else  instr(gcrs.stream_name,' (')-1 end) ISSUE_DIVISION,
          case when gcrs.STREAM_NAME like 'NON-GT%' THEN 'NON-GT' ELSE gcrs.STREAM_NAME END as ISSUE_DIVISION_2
     from ....
    where UPPER(ISSUE_STATUS) like '%OPEN%'
 )
 WHERE... -- optional --
于 2013-03-25T14:15:38.610 回答
15

如此简单，您可以在此处使用case语句。

CASE WHEN ISSUE_DIVISION = ISSUE_DIVISION_2 THEN 
         CASE WHEN  ISSUE_DIVISION is null then "Null Value found" //give your option
         Else 1 End
ELSE 0 END As Issue_Division_Result
于 2013-03-25T12:21:55.660 回答
0

使用该变量，Oracle 在没有 INTO 的情况下不支持 SQL。使用正确命名的变量，您的代码无论如何都会更加清晰。

于 2014-06-04T05:32:06.477 回答
0

在一行中，答案如下；

[ CASE WHEN COLUMN_NAME = 'VALUE' THEN 'SHOW_THIS' ELSE 'SHOW_OTHER' END as ALIAS ]

于 2020-04-29T12:45:19.990 回答