Outer join not working

Hello everybody,
I have a folder based on materialized view (Detailed folder). There is another folder which is based on a table (master folder). i have created a jooin and select option as "outer join on master folder". The join is not working properly. Am i doing asomething wrong. Discoverer version is 10.1.2 and database version is 10.2.0.3. i have been creating outer joins among folders based on tables but i am not sure about whats wrong this time??? materalized view defination is as follows:
CREATE MATERIALIZED VIEW MW
BUILD IMMEDIATE
REFRESH FORCE
START WITH SYSDATE
NEXT TRUNC(SYSDATE+1)+1/4
WITH PRIMARY KEY
AS
SELECT * FROM VIEW
Thanx for your help
Regards,
Najeeb

So, let me see if I got this...
You have a table and a materialized view. There is a join between the two, where the table is the master, and the MV is the detail. The join is set to be an outer join on master. Ultimately, you want to see the values in the MV where the join condition is NULL.
What boggles me is that you say the query runs fine in the database, but not in Disco. This could mean that there is a condition in the BA or in the worksheet. But, if that were the case, the condition should show up in the SQL generated by Disco.
It looks like the where clause is the problem. NULL is never equal to anything, so when APPROVEDBY is null, the where clause should fail and no data returned. This explains Disco's behavior, but not SQL's.
Something to try: Create a calculation in the materialized view folder of the business area like:
NVL(APPROVEDBY, -1)
I am assuming that all of your IDs are positive. Then modify the join to use the calculated column. This should convert the NULLS to values, and the report should work.

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Hey thanks for the reply, but the problem is not solved.
I am already using ( fileds, value) like table in my where condition and the select statement was working properly.
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Hello Friends,
I have two ODSes , one for planned data (zplan) and other is billing z ods (zsd_o03).
now the situation is such that in my planned ODS for one sold to party .
SOLD TO        MATERRIAL CALMONT     PLANNED QUANTIY
14315            100                06.2007           54
14315            200                06.2007           20
14315            300                06.2007           30
14315            400                06.2007           10
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14315           100           06.2007                  20
14315           200           06.2007                  30
And my Bex ouput should be like
SOLD TO        MATERIAL CALMONT        planned             ACTUAL QUANTIY
14315            100                06.2007           54                                 20
14315            200                06.2007           20                                30
14315            300                06.2007           30                                  0
14315            400                06.2007           10                                0
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Calmonth.
First i tried using Inner joing option , but the bottom two lines were not ciming , so used left outer join , and activated and recreated the query but still its showiong me the output same as inner join .. i.e
14315            100                06.2007           54                                 20
14315            200                06.2007           20                                30
So i checked by writing a ABAP code in Se38 , but there its showing me the correct result ..
So please anybody help me out because iam thinking that infoset is the right way to do this kind of reporting , or esle shall i make one ODS and populate it through this ABAP code..
Thanks in advance.

Hi , can anybody help me in this regard..
Thanks ..

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Again I have a very difficult problem for which I ask Your help, but this time I am better prepared than last time and can deliver sample data of my (hopefully not too much) simplified example:
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title          varchar2(128)
create table People(
pk_id          number          not null primary key,
name          varchar2(128)
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fk_subjects_id     number,
fk_people_id     number,
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insert into Subjects(pk_id, title) values (2, 'Shopping ingredients')
insert into Subjects(pk_id, title) values (3, 'Preparations')
insert into Subjects(pk_id, title) values (4, 'Cooking for beginners')
insert into Subjects(pk_id, title) values (5, 'Eating for pros')
insert into Subjects(pk_id, title) values (6, 'Dishwashing for everyone')
insert into Subjects(pk_id, title) values (7, 'Digesting for experts')
insert into Subjects(pk_id, title) values (8, 'Becoming hungry again...')
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insert into Results(pk_id, fk_subjects_id, fk_people_id, result) values (2, 2, 1, 4)
insert into Results(pk_id, fk_subjects_id, fk_people_id, result) values (3, 3, 1, 3)
insert into Results(pk_id, fk_subjects_id, fk_people_id, result) values (4, 9, 1, 5)
insert into Results(pk_id, fk_subjects_id, fk_people_id, result) values (5, 1, 2, 4)
insert into Results(pk_id, fk_subjects_id, fk_people_id, result) values (6, 2, 2, 1)
insert into Results(pk_id, fk_subjects_id, fk_people_id, result) values (7, 3, 2, 5)
insert into Results(pk_id, fk_subjects_id, fk_people_id, result) values (8, 4, 2, 2)
insert into Results(pk_id, fk_subjects_id, fk_people_id, result) values (9, 5, 2, 3)
insert into Results(pk_id, fk_subjects_id, fk_people_id, result) values (10, 6, 2, 2)
insert into Results(pk_id, fk_subjects_id, fk_people_id, result) values (11, 7, 2, 1)
insert into Results(pk_id, fk_subjects_id, fk_people_id, result) values (12, 4, 3, 3)
insert into Results(pk_id, fk_subjects_id, fk_people_id, result) values (13, 5, 3, 5)
insert into Results(pk_id, fk_subjects_id, fk_people_id, result) values (14, 7, 3, 1)
insert into Results(pk_id, fk_subjects_id, fk_people_id, result) values (15, 8, 3, 5)
insert into Results(pk_id, fk_subjects_id, fk_people_id, result) values (16, 9, 3, 1)
Please imagine this as an university for amateur cooks. Now I want to present them their performance record/"scorecard", for every student, only with her or his marks. On this performance record there should be a list of all 9 subjects possible to pass, and where students got a result, that result should be filled in. I thought that should be possible to achieve with something like this:
SELECT PEOPLE.NAME, SUBJECTS.TITLE, RESULTS.RESULT FROM RESULTS
JOIN PEOPLE ON PEOPLE.PK_ID = RESULTS.FK_PEOPLE_ID
JOIN SUBJECTS ON SUBJECTS.PK_ID = RESULTS.FK_SUBJECTS_ID
WHERE RESULTS.FK_PEOPLE_ID = 2
But also using (LEFT|RIGHT|FULL) OUTER JOINs here does not help me to get what I want, I always only get
NAME TITLE RESULT
Cloe Choosing a recipe 4
Cloe Shopping ingredients 1
Cloe Preparations 5
Cloe Cooking for beginners 2
Cloe Eating for pros 3
Cloe Dishwashing for everyone 2
Cloe Digesting for experts 1
But I want:
NAME TITLE RESULT
Cloe Choosing a recipe 4
Cloe Shopping ingredients 1
Cloe Preparations 5
Cloe Cooking for beginners 2
Cloe Eating for pros 3
Cloe Dishwashing for everyone 2
Cloe Digesting for experts 1
Cloe Becoming hungry again...
Cloe Redo from start
Without having to fill in empty rows for all students which did not take all exams yet.
Is it possible? If so, how?
Thank You very much in advance and Happy Easter to everyone! :-)
With kind regards,
Chriss
Edited by: user9355711 on 01.04.2010 07:01
Edited by: user9355711 on 01.04.2010 07:28
Edited by: user9355711 on 01.04.2010 07:29

Also;
var n number
exec :n := 2;
PL/SQL procedure successfully completed
n
2
select ppl.name, sub.title, res.result
from subjects sub, people ppl, results res
where sub.pk_id = res.fk_subjects_id(+)
   and ppl.pk_id = :n
   and res.fk_people_id(+) = :n
order by sub.title;
NAME       TITLE                         RESULT
Cloe       Becoming hungry again...
Cloe       Choosing a recipe                  4
Cloe       Cooking for beginners              2
Cloe       Digesting for experts              1
Cloe       Dishwashing for everyone           2
Cloe       Eating for pros                    3
Cloe       Preparations                       5
Cloe       Redo from start
Cloe       Shopping ingredients               1

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http://artisconsulting.com/Blogs/GregGalloway

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