Need help for a query

Question

Dear all,
I have data in a table with 3 columns.
Tabke name---test & columns are ....
Proeductioncode varchar2(5);
revisionno varchar2(3);
dateadopted char(8);
SELECT PRODUCTIONCODE,
REVISIONNO,
dateadopted
FROM test
where
productioncode ='CI50E';
output should be
productioncode revisionno dateadopted
     CI50E     004     20110125     
     CI50E     001     20101104     
     CI50E     003     20110320     
     CI50E     002     20101214     
My requirement is
I wanna display records which are dateadopted is > sysdate and
one record which is less than sysdate, which is the max(<sysdate)..
from the data above, the output should be
CI50E     003     20110320     
CI50E     004     20110125     
Please help me get this output. we need to write it in a select query.

Answer 1

Sorry I don't have a database available to test - missed to join by productioncode :( grouping by revisionno caused more than one row being returned :(
No need to send data. I added a data providing subquery. Will take shot when I get to the database, but I might not be able to post from the office
with
/* generating test data */
test as
(select 'CI50E' productioncode,'004' revisionno,'20110125' dateadopted from dual union all /* 003 if increasing by date */
select 'CI50E','001','20101104' from dual union all
select 'CI50E','003','20110320' from dual union all                                        /* 004 if increasing by date */
select 'CI50E','002','20101214' from dual union all
select 'XI50Y','001','20110220' from dual union all
select 'XI50Y','002','20110220' from dual union all
select 'XI50Y','003','20110304' from dual 
/* end of test data generation */
SELECT productioncode,revisionno,dateadopted
  FROM (select productioncode,revisionno,dateadopted
          from test a
         where (dateadopted > to_char(sysdate,'yyyymmdd'))
            or dateadopted = (select max(dateadopted)
                                from test
                               where productioncode = a.productioncode
                                 and dateadopted < to_char(sysdate,'yyyymmdd')
ORDER BY PRODUCTIONCODERegards
Etbin
Edited by: Etbin on 20.2.2011 21:58
did some alignment
Edited by: Etbin on 21.2.2011 7:39
missing right parenthesis added, group by clause removed since there is just a single product
Edited by: Etbin on 21.2.2011 7:52
some more data edit