REF partitioning is affecting on complex queries

Hi,
I am having 7 tables consider A,B,C,D,E,F,G. whereas A is master table and others are dependent on table A. columnA is referential key for all tables. Table A is having one DateRange column.
I have successfully created range partitioning with partitioning key is DateRange. and Refeernce partitioning on other tables with column referring to ColumnA with foreign key.
Also created local indexes on partitioned key DateRange.
Problem is that, while fetching complex queries for reports, it is taking more time as compared to non partitioning structure. Is ref partitioning affecting on complex queries, queries returning more rows ??? Please suggest me about it.
Thanks,
Avinash.

Did I miss anything ?Depends on what you've read about it sofar and why you decided to implement it.
http://www.oracle-base.com/articles/11g/partitioning-enhancements-11gr1.php#reference_partitioning
"The following conditions and restrictions apply to reference partitioning:
The child table must specify a referential integrity constraint defined on the table being created. This constraint must be in ENABLE VALIDATE NOT DEFERRABLE state (the default) and refer to a primary or unique key on the parent table.
The foreign key columns referenced in constraint must be NOT NULL.
The constraint cannot use the ON DELETE SET NULL clause.
The parent table referenced must be an existing partitioned table. All partitioning methods except interval partitioning are supported.
The foreign key cannot contain any virtual columns.
The referenced primary key or unique constraint on the parent table cannot contain any virtual columns.
Reference partitioning cannot be used for index-organized tables, external tables, or domain index storage tables.
A chain of reference partitioned tables can be created, but constraint used can't be self-referencing.
The ROW MOVEMENT setting for both tables must match.
Reference partitioning cannot be specified in a CREATE TABLE ... AS SELECT statement."

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OBIEE generates complex queries

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Thanks guys. Bad design could be a reason.. but we're using Oracle's own product called BI-APPS and I expect that to be perfect...:-)
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WITH
SAWITH0 AS (select sum(T258218.LINE_AMT * T258218.GLOBAL1_EXCHANGE_RATE) as c1,
T551303.PROJECT_NUMBER as c2,
T258218.PURCH_ORDER_NUM as c3
from
W_PROJECT_D T551303 /* Dim_W_PROJECT_D_Project */ ,
W_PURCH_COST_F T258218 /* Fact_W_PURCH_COST_F */
where ( T258218.DELETE_FLG = 'N' and T258218.PROJECT_WID = T551303.ROW_WID and T551303.PROJECT_NUMBER = '101491' )
group by T258218.PURCH_ORDER_NUM, T551303.PROJECT_NUMBER),
SAWITH1 AS (select distinct SAWITH0.c2 as c1,
SAWITH0.c3 as c2,
SAWITH0.c1 as c3,
SAWITH0.c1 as c4,
SAWITH0.c1 as c5
from
SAWITH0),
SAWITH2 AS (select distinct SAWITH1.c1 as c1,
SAWITH1.c2 as c2,
SAWITH1.c3 as c3
from
SAWITH1),
SAWITH3 AS (select sum(T258218.LINE_AMT * T258218.GLOBAL1_EXCHANGE_RATE) as c1,
T551303.PROJECT_NUMBER as c2,
T258218.PURCH_ORDER_NUM as c3
from
W_PROJECT_D T551303 /* Dim_W_PROJECT_D_Project */ ,
W_PURCH_COST_F T258218 /* Fact_W_PURCH_COST_F */
where ( T258218.DELETE_FLG = 'N' and T258218.PROJECT_WID = T551303.ROW_WID and T551303.PROJECT_NUMBER = '101491' )
group by T258218.PURCH_ORDER_NUM, T551303.PROJECT_NUMBER),
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SAWITH3.c3 as c2,
SAWITH3.c1 as c3,
SAWITH3.c1 as c4,
SAWITH3.c1 as c5
from
SAWITH3),
SAWITH5 AS (select sum(SAWITH4.c4) as c4,
SAWITH4.c1 as c5
from
SAWITH4
group by SAWITH4.c1),
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T551303.PROJECT_NUMBER as c2,
T258218.PURCH_ORDER_NUM as c3
from
W_PROJECT_D T551303 /* Dim_W_PROJECT_D_Project */ ,
W_PURCH_COST_F T258218 /* Fact_W_PURCH_COST_F */
where ( T258218.DELETE_FLG = 'N' and T258218.PROJECT_WID = T551303.ROW_WID and T551303.PROJECT_NUMBER = '101491' )
group by T258218.PURCH_ORDER_NUM, T551303.PROJECT_NUMBER),
SAWITH7 AS (select distinct SAWITH6.c2 as c1,
SAWITH6.c3 as c2,
SAWITH6.c1 as c3,
SAWITH6.c1 as c4,
SAWITH6.c1 as c5
from
SAWITH6),
SAWITH8 AS (select sum(SAWITH7.c5) as c3
from
SAWITH7)
select SAWITH2.c1 as c1,
SAWITH2.c2 as c2,
SAWITH2.c3 as c3,
SAWITH5.c4 as c4,
SAWITH8.c3 as c5
from
SAWITH2,
SAWITH5,
SAWITH8
where ( nvl(SAWITH2.c1 , 'q') = nvl(SAWITH5.c5 , 'q') and nvl(SAWITH2.c1 , 'z') = nvl(SAWITH5.c5 , 'z') )
Basically the query is:
select sum(T258218.LINE_AMT * T258218.GLOBAL1_EXCHANGE_RATE) as c1,
T551303.PROJECT_NUMBER as c2,
T258218.PURCH_ORDER_NUM as c3
from
W_PROJECT_D T551303 /* Dim_W_PROJECT_D_Project */ ,
W_PURCH_COST_F T258218 /* Fact_W_PURCH_COST_F */
where ( T258218.DELETE_FLG = 'N' and T258218.PROJECT_WID = T551303.ROW_WID and T551303.PROJECT_NUMBER = '101491' )
group by T258218.PURCH_ORDER_NUM, T551303.PROJECT_NUMBER
but this query is repeated multiple times. It looks like a self join - but why is OBIEE generating such a complex query? And can it be affected?
Edited by: user10984315 on 18-Mar-2011 08:29
Edited by: user10984315 on 18-Mar-2011 08:30

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Some of the places from where i learn new and exiting stuff ever day are
[Asktom.oracl.com |http://asktom.oracle.com/pls/asktom/f?p=100:1:146758316283624]
[forums.oracle.com|http://forums.oracle.com/forums/main.jspa?categoryID=84]
[Richard footes oracle blog|http://richardfoote.wordpress.com/]
[Oracle Document is always there|http://tahiti.oracle.com/]
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Moved to performance forum by moderator
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Edited by: Matt on Jan 21, 2009 6:54 PM

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Hi Inderjyot Singh ( Kaamin and other friends)
Thanks a lot to all of you , for your mails regarding the question I
have posted. The discussion has been really helpful .
Regarding your thought from your recent mail..,
"What if you drag a UserVisible SO that belongs to application 'A1'
into a reference partition with services for application 'A2'??"
This also does not work out. I have tried all combinations of User
visible and Environment visible objects to put them in the same
reference partitioning ( or the way U suggested above. No way U can put
both of them together).
Now I am trying to do the same ref.partitioning by changing the User
visibility (of one service object) to Environment visibility and trying
to put things together in the same reference partition.( for
experimental purposes)
Both environment visible service objects option also does not seem to be
easy ( for deploying purposes ), you have to compromise on some good
design issues and the side effects are right now not predictable, Just
to understand them, I am trying this option.
Once I am done with it, I will share the results with U all.
Let us meet in the next discussion.
Thirumurthi
Get Your Private, Free Email at http://www.hotmail.com

Did I miss anything ?Depends on what you've read about it sofar and why you decided to implement it.
http://www.oracle-base.com/articles/11g/partitioning-enhancements-11gr1.php#reference_partitioning
"The following conditions and restrictions apply to reference partitioning:
The child table must specify a referential integrity constraint defined on the table being created. This constraint must be in ENABLE VALIDATE NOT DEFERRABLE state (the default) and refer to a primary or unique key on the parent table.
The foreign key columns referenced in constraint must be NOT NULL.
The constraint cannot use the ON DELETE SET NULL clause.
The parent table referenced must be an existing partitioned table. All partitioning methods except interval partitioning are supported.
The foreign key cannot contain any virtual columns.
The referenced primary key or unique constraint on the parent table cannot contain any virtual columns.
Reference partitioning cannot be used for index-organized tables, external tables, or domain index storage tables.
A chain of reference partitioned tables can be created, but constraint used can't be self-referencing.
The ROW MOVEMENT setting for both tables must match.
Reference partitioning cannot be specified in a CREATE TABLE ... AS SELECT statement."

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REF partitioning is affecting on complex queries

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