Summary Report with 4 Dimensions and 5 Facts

Hello OBIEE Czars:
I have a problem.
I am trying to make a summary report with 4 Dimensions and 5 Facts.
Out of that only 2 Dimensions are Confirmed.
Now when I try to bring in all the facts, I get view display error.
I searched forum for similar issues.
So I have tried following so far.
1) Add other dimensions as source and set level to Total for those dims.
- After doing this, I dont get view display error, but I get blank rows for couple of facts.
2) I am already aggregating all the measures.
Please help me out.
This forum has been very helpful so far.
Thanks.
~Vinay

Hi
This method seems fine until you run a request that includes a filter on an unconformed dimension.
The SQL itself should be quite straightforward (see below) but the BI Server instance does not seem to be joining this data correctly after posting the 2 separate queries to the database.
SELECT
x.dim1, x.dim2
x.fact1_agg_measure
y.fact2_agg_measure
FROM
SELECT
dim1, dim2
SUM(fact1.measure) fact1_agg_measure
FROM
dim1,
dim2, --UNCONFORMED+
fact1
WHERE
.... .... join fact1 to dimensions as normal
AND dim2 = 'BUSINESS_IDENTFIER'
GROUP BY
dim1, dim2
) x,
SELECT
dim1
SUM(fact2.measure) fact2_agg_measure
FROM
dim1,
fact2
WHERE
.... .... join fact2 to dimensions as normal
GROUP BY
dim1
) y
WHERE
x.dim1 = y.dim1
The result set returned in Answers is firstly a correctly aggregated record plus ALL rows from the second query above ??
Just wondering if anyone else has come across this issue?
cheers
Tony

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Please Mark This As Answer if it solved your issue
Please Vote This As Helpful if it helps to solve your issue
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Hello Copter,
Even I had modeled it by reading this link before. In the situation explained by me dimension D1 is doing the job of table Rules ( as explained in link). The model is fine.
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+919880890405

Hi,
first of all, there is no need for the column sales_date in your fact table. Use the time_id for date reference.
In your dimensions, use surrogate keys that are generated in your dwh. Do not use ids from your source as surrogate keys!
You may use the ids from the source as business keys, if the names are not unique.
Load your fact table from source table sales. Join all dimensions to get the surrogate keys of product, store and time.
Write the surrogate dim keys into the fact table along with unit_sales and amount_sales.
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Please Mark This As Answer if it solved your issue
Please Mark This As Helpful if it helps to solve your issue
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Hello.
I have datawarehouse in snowflake schema. All dimensions are SCD2, the columns are like that:
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>
I have datawarehouse in snowflake schema. All dimensions are SCD2, the columns are like that:
ID (PK) SID NAME ... START_DATE END_DATE IS_ACTUAL
1 1 XXX 01.01.2000 01.01.2002 0
2 1 YYX 02.01.2002 01.01.2004 1
3 2 SYX 02.01.2002 1
4 3 AYX 02.01.2002 01.01.2004 0
5 3 YYZ 02.01.2004 1
On this table there are relations from other dimension and fact table.
Need I create foreign keys for relation?
>
Are you still designing your system? Why did you choose NOT to use a Star schema? Star schema's are simpler and have some performance benefits over snowflakes. Although there may be some data redundancy that is usually not an issue for data warehouse systems since any DML is usually well-managed and normalization is often sacrificed for better performance.
Only YOU can determine what foreign keys you need. Generally you will create foreign keys between any child table and its parent table and those need to be created on a primary key or unique key value.
>
And if I do, on what columns? SID (serial ID) is not unique. If I create on ID, I have to get SID and actual row in any query.
>
I have no idea what that means. There isn't any way to tell from just the DDL for one dimension table that you provided.
It is not clear if you are saying that your fact table will have a direct relationship to the star-flake dimension tables or only link to them through the top-level dimensions.
Some types of snowflakes do nothing more than normalize a dimension table to eliminate redundancy. For those types the dimension table is, in a sense, a 'mini' fact table and the other normalized tables become its children. The fact table only has a relation to the main dimension table; any data needed from the dimensions 'child' tables is obtained by joining them to their 'parent'.
Other snowflake types have the main fact table having relations to one or more of the dimensions 'child' tables. That complicates the maintenance of the fact table since any change to the dimension 'child' table impacts the fact table also. It is not recommended to use that type of snowflake.
See the 'Snowflake Schemas' section of the Data Warehousing Guide
http://docs.oracle.com/cd/B28359_01/server.111/b28313/schemas.htm
>
Snowflake Schemas
The snowflake schema is a more complex data warehouse model than a star schema, and is a type of star schema. It is called a snowflake schema because the diagram of the schema resembles a snowflake.
Snowflake schemas normalize dimensions to eliminate redundancy. That is, the dimension data has been grouped into multiple tables instead of one large table. For example, a product dimension table in a star schema might be normalized into a products table, a product_category table, and a product_manufacturer table in a snowflake schema. While this saves space, it increases the number of dimension tables and requires more foreign key joins. The result is more complex queries and reduced query performance. Figure 19-3 presents a graphical representation of a snowflake schema.

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How to load data to dimensions and fact table is it simialr to sql server

How to load data to dimensions and fact table in a data ware house environment, is it simialr to sql server, oracle?
Never migrated or loaded data to datawarehouse server.
I have an interview and am really confused if they ask anything related to the dataware house side elements.
Coudl you please if you don't mind provide me some steps and dimension and fact table info, an example only.
Atleast for my knowledge.
Thank you very much for the helpful info.

Some discussions in previous forums should help you
http://forums.sdn.sap.com/thread.jspa?threadID=2019448
http://forums.sdn.sap.com/thread.jspa?threadID=1908902
In the SAP tutorial, you can see a sample example of making fact tables.
http://help.sap.com/businessobject/product_guides/boexir32SP1/en/xi321_ds_tutorial_en.pdf
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Summary Report with 4 Dimensions and 5 Facts

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