Application of most recent date...

Hi all..

I noticed 2 tables and sub_note and sample data is...
create table note(note_date date,pmry_id number,sub_id number not null)

insert into note(note_date,pmry_id,sub_id) values('12/30/2008 02:12:52',282,1)
insert into note(note_date,pmry_id,sub_id) values('12/23/2008 10:12:24',282,1)
insert into note(note_date,pmry_id,sub_id) values('12/22/2008 01:12:11',282,1)
insert into note(note_date,pmry_id,sub_id) values('12/22/2008 09:12:56',282,1)
insert into note(note_date,pmry_id,sub_id) values('12/19/2008 01:12:54',282,1)
insert into note(note_date,pmry_id,sub_id) values('12/22/2008 09:12:56',282,2)
insert into note(note_date,pmry_id,sub_id) values('12/22/2008 09:12:57',282,2)

create table sub_note(sub_id number not null,sub_name varchar2(100))

insert into sub_note(sub_id,sub_name) values(1,'Product')
insert into sub_note(sub_id,sub_name) values(2,'Expectations')
How can select the most recent date of product and the more recent date for the expectations... to join these 2 tables of...

Thanks in advance...

Hello

Use MAX and GROUP BY:

SELECT       sn.sub_name
,       MAX (n.note_date)     AS latest_note_date
FROM       note          n
JOIN       sub_note     sn     ON n.sub_id     = sn.sub_id
WHERE       n.sub_name IN ('Product',     'Expectations')
GROUP BY  sn.sub_name;

Tags: Database

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    user4587979 wrote:
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    Yes, but I had more than 2 tables with item_characteristics, type_characteristics

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    ******************************************************/

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