Question

您好我选择并且效果很好：

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值为1如果不相等则应为0，

我该怎么办？

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

但我在网上收到错误： ELSE 0 END作为Issue_Division_Result

ORA-00920：无效的关系运算符：（

Answer 1

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 --

Answer 2

这么简单，你可以在这里使用 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

Answer 3

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，无论如何，您的代码将更加清晰。

Answer 4

在一行中，答案如下；

[当COLUMN_NAME ='VALUE'然后以'SHOW_THIS'否则为'SHOW_OTHER'结束时使用别名的情况]

如果语句在select（ORACLE）

4 个答案: