Help on Dispyaing Missing Time in a day

Question

Thanks in Advance
I want to display my output and insert missing time records
Original Query
In the above query 9:01 and 9:03 are missing for same date
SQL> SELECT * FROM MISSING_TIME;
DATE_TIME DESCRIPTION1 DESCRIPT2
9/25/2003 9:00:00 AM test1 test2
9/25/2003 9:00:00 AM test2 test3
9/25/2003 9:02:00 AM test1 test2
9/25/2003 9:02:00 AM test2 test3
9/25/2003 9:04:00 AM test1 test2
9/25/2003 9:04:00 AM test2 test3
6 rows selected
My Output
I want to display my output and insert missing time records(9:01 and 9:03) as follows
DATE_TIME     DESCRIPTION1     DESCRIPT2
9/25/2003 9:00:00 AM     test1     test2
9/25/2003 9:00:00 AM     test2     test3
9/25/2008 9:01:00 AM     Missing Time1     Missing Time 1
9/25/2008 9:01:00 AM     Missing Time2     Missing Time2
9/25/2003 9:02:00 AM     test1     test2
9/25/2003 9:02:00 AM     test2     test3
9/25/2008 9:03:00 AM     Missing Time1     Missing Time 1
9/25/2008 9:03:00 AM     Missing Time2     Missing Time2
9/25/2003 9:04:00 AM     test1     test2
9/25/2003 9:04:00 AM     test2     test3
create table missing_time(date_time date,description1 varchar2(30),descript2 varchar2(30));
insert into missing_time(date_time,description1,descript2)
values(to_date('2003/09/25 9:00', 'yyyy/mm/dd hh24:mi:ss'),'test1','test2');
insert into missing_time(date_time,description1,descript2)
values(to_date('2003/09/25 9:00', 'yyyy/mm/dd hh24:mi:ss'),'test2','test3');
insert into missing_time(date_time,description1,descript2)
values(to_date('2003/09/25 9:02', 'yyyy/mm/dd hh24:mi:ss'),'test1','test2');
insert into missing_time(date_time,description1,descript2)
values(to_date('2003/09/25 9:02', 'yyyy/mm/dd hh24:mi:ss'),'test2','test3');
insert into missing_time(date_time,description1,descript2)
values(to_date('2003/09/25 9:04', 'yyyy/mm/dd hh24:mi:ss'),'test1','test2');
insert into missing_time(date_time,description1,descript2)
values(to_date('2003/09/25 9:00', 'yyyy/mm/dd hh24:mi:ss'),'test2','test3');

Answer 1

My query is a below
SQL> SELECT * FROM MISSING_TIME;
DATE_TIME DESCRIPTION1 DESCRIPT2
9/25/2003 9:00:00 AM test1 test2
9/25/2003 9:00:00 AM test2 test3
9/25/2003 9:02:00 AM test1 test2
9/25/2003 9:02:00 AM test2 test3
9/25/2003 9:04:00 AM test1 test2
9/25/2003 9:04:00 AM test2 test3
When i use your query I am getting table or view doesn't exists
SQL>
WITH     missing_time_n     AS
     SELECT     m.*
     ,     ROW_NUMBER () OVER
               (     PARTITION BY     TRUNC (date_time, 'MI')
                    ORDER BY     date_time
                    ,          description1
                    ,          descript2
               )     AS r_num
     FROM     missing_time     m
--     WHERE     ...     -- If needed
,     extrema     AS
     SELECT     MIN (date_time)     AS earliest_date_time
     ,     MAX (date_time)     AS latest_date_time
     FROM     missing_time_n
,     all_minutes     AS
     SELECT     earliest_date_time +
          (     (LEVEL - 1) /
               (24 * 60)
          )     AS date_time
     FROM     extrema
     CONNECT BY     LEVEL <= 1 +
               (     (latest_date_time - earliest_date_time) *
                    (24 * 60)
,     two_rows     AS
     SELECT     LEVEL     AS n
     ,     'Missing Time ' || TO_CHAR (LEVEL)     AS description
     FROM     dual
     CONNECT BY     LEVEL <= 2
SELECT     NVL (mn.date_time,     am.date_time)
,     NVL (mn.description1,     tr.description)
,     NVL (mn.descript2,     tr.description)
FROM          all_minutes     am
CROSS JOIN     two_rows     tr
FULL OUTER JOIN     missing_time_n     mn     ON     am.date_time     = TRUNC (mn.date_time, 'MI')
                         AND     tr.n          = mn.r_num
ORDER BY     mn.date_time
,          am.date_time
,          mn.r_num
,          tr.n
ORA-00942: table or view does not exist