get the latest dates
HelloI have a simple question... .i do not know why I m brain dead today...
I m trying to get the date limit for the id of each
with test_data as(
select '001'id, 'xyz'name, '1/1/2009'start_date from dual union all
select '001', 'abc', '1/2/2099' from dual union all
select '001', 'def', '1/3/2009' from dual union all
select '001', 'ghi', '1/4/2009' from dual union all
select '001', 'jkl', '1/5/2009' from dual
)
The output i m looking for just one record with latest date
with result as
(
select '001', 'jkl', '1/5/2009' from dual
)
i tried this
select id,name, greatest(start_date) from test_data
group by id,name,start_date
It gives me output ...which i m not lookg for
with t as
(
select '001', 'abc', '1/3/2009' from dual union all
select '001', 'ghi', '1/4/2009' from dual union all
select '001', 'jkl', '1/5/2009' from dual
)select * from t
I was wondering if we have any function in oracle PL/SQL to do this kind of thingsAny suggestion is greatly appreciated! Thanks much sio!
Published by: user642297 on March 12, 2010 12:21
SQL> with test_data as(
2 select '001'id, 'xyz'name, '1/1/2009'start_date from dual union all
3 select '001', 'abc', '1/2/2099' from dual union all
4 select '001', 'def', '1/3/2009' from dual union all
5 select '001', 'ghi', '1/4/2009' from dual union all
6 select '001', 'jkl', '1/5/2009' from dual union all
7 select '002', 'ghi', '1/4/2009' from dual
8 )
9 select id, max(start_date), max(name) keep (dense_rank first order by start_date desc)
10 from test_data
11 group by id;
ID MAX(STAR MAX
--- -------- ---
001 1/5/2009 jkl
002 1/4/2009 ghi
Max
http://oracleitalia.WordPress.com
Tags: Database
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