Query based on date partition

Question

Hi,
I am trying to output only a successful job during the past 24 hrs of each day. If there is job that has an outcome of a success and a failure within the last
24 hrs for each day, I want to only output the successful one. If there are no success for the same job, I will output the last attempted failed job.
Here are my columns:
current output:
JOB_ID     JOBDATE               GROUP     PATH          OUTCOME          FAILED     LEVEL     ASSET
3400908     7/27/2012 10:01:18 AM     polA     target1          Success          0     incr     clone1
3400907     7/27/2012 10:01:09 AM     polA     target1          Failed          0     incr     clone1
3389180     7/23/2012 10:01:14 AM     polA     target1          Failed          1     incr     clone1
3374713     7/23/2012 10:01:03 AM     polA     target1          Success          0     incr     clone1
3374712     7/22/2012 11:24:32 AM     polA     target1          Success          0     Full     clone1
3367074     7/22/2012 11:24:00 AM     polA     target1          Failed          1     Full     clone1
3167074     7/21/2012 10:01:13 AM     polA     target1          Success          0     incr     clone1
336074     7/21/2012 10:01:08 AM     polA     target1          Success          0     incr     clone1
desired output:
JOB_ID     JOBDATE               GROUP     PATH          OUTCOME          FAILED     LEVEL     ASSET
3400908     7/27/2012 10:01:18 AM     polA     target1          Success          0     incr     clone1
3374713     7/23/2012 10:01:03 AM     polA     target1          Success          0     incr     clone1
3374712     7/22/2012 11:24:32 AM     polA     target1          Success          0     Full     clone1
3167074     7/21/2012 10:01:13 AM     polA     target1          Success          0     incr     clone1
Here is a code I am trying to use without success:
select *
from
   (selectjob_id, jobdate, group, path, outcome, Failed, level, asset,
          ROW_NUMBER() OVER(PARTITION BY group, path, asset ORDER BY jobdate desc) as rn
               from job_table where jobdate between trunc(jobdate) and trunc(jobdate) -1 )
   where rn = 1
   order by jobdate desc;Thanks,
-Abe

Answer 1

Hi, Abe,
You're on the right track, using ROW_NUMBER to assign numbers, and picking only #1 in the main query. The main thing you're missing is the PARTITION BY clause.
You want to assign a #1 for each distinct combination of group_id, path, asset and calendar day , right?
Then you need to PARTITION BY group_id, path, asset and calendar day . I think you realized that when you named this thread "Query Based *on date partition* ".
The next thing is the analytic ORDER BY clause. To see which row in each partition gets assigned #1, you need to order the rows by outcome ('Success' first, then 'Failed'), and after that, by jobdate (latest jobdate first, which is DESCending order).
If so, this is what you want:
WITH     got_r_num     AS
     SELECT  j.*     -- or list columns wanted
     ,     ROW_NUMBER () OVER ( PARTITION BY  group_id     -- GROUP is not a good column name
                               ,                    path
                         ,             asset
                         ,             TRUNC (jobdate)
                               ORDER BY          CASE  outcome
                                             WHEN  'Succcess'
                                     THEN  1
                                     ELSE  2
                                         END 
                         ,             jobdate     DESC
                       )      AS r_num
     FROM    job_table  j
     WHERE     outcome     IN ('Success', 'Failed')
--     AND     ...     -- Any other filtering, if needed
SELECT     *       -- or list all columns except r_num
FROM     got_r_num
WHERE     r_num     = 1
;If you'd care to post CREATE TABLE and INSERT statements for the sample data, then I could test it.
It looks like you posted multiple copies of this thread.  I'll bet that's not your fault; this site can cause that.  Even though it's not your fault, please mark all the duplicate versions of this thread as "Answered" right away, and continue in this thread if necessary.
Edited by: Frank Kulash on Jul 28, 2012 11:47 PM
This site is flakier than I thought! I did see at least 3 copies of this same thread earlier, but I don't see them now.