Building Dimensions and Cubes in 11.1

Hi Experts,
Can anyone provide me a weblink or atleast steps as to how to create a Dimensions and Cubes in OWB 11.1.
For practice purpose i am accessing HR User. In there i have selected Locations and Countries table and is using it to create the Place_Dim (Place Dimension)
Issues:
1. What are Levels and Heirarchiies
(In ROLAP its asking me to use the surrogate Key i both the levels)
2. It is asking me to bound it to table or view. I have never seen any help regarding in bounding and out bounding in the tool.
Please help.
Regards,
Ravi Remje

Many Thanks Dave for your help. The links are very helpfull.
I have a silly doubt in my mind. Kindly apologize for my dumbness.
Concerns:
I went through the OWB tool and came to the conclusion that the DIMENSIONS and CUBES are logical object. However, if i want to use it as a Physical table, is it any way as in how we can use the simple tables as different types of dimensions and facts by changing their loading type. Is it any possible way to implement the same feature for DIMENSION and CUBE objects. I dont want them to be used as views but as a table.
Please help.
Regards,
Ravi Remje

Similar Messages

How to import SH Sample Dimensions and Cubes with OWB Client

Hi, is there a functionality to import the Dimensions and Cubes from the sample to reuse and manipulate them within the OWB Client?
I can add Dimensions in the Enterprise Manager but mapping should be difficult- right?
Specs: DB 10g rel2, OWB 10.1.0.4

dimension - either define a table on your own, or use the data modeler and physically define a new dimension.
Cube - same as above.
as for levels and hierarchies, this can also be done in the data modeler. You can specify keys, levels, attributes, measures...all that stuff for dims and facts. There many tabs on the lower half of the dimension modeler screen that control this.
Check out the oracle by examples for easy tutorials.

Using dimension and cube operator

hi
I am facing problem in using this dimension and cube operator..
Actually I want to create a sales data with dimensions as time,customer and product
After creating a dimension in owb I get a table created attached with it same is the case with cube operator
so where should I store my measures in the cube or the table created and where to store the data about dimensions in the table created.
and finally how to use them in mapping to retrieve the data stored
Thanks

It sounds like you are not getting any matching keys for loading into the cube.
Do you have a time dimension created by OWB in the cube? The key used by the cube operator for an OWB time dimension is a formatted number. The time dimension keys are stored as follows;
Day Level - YYYYMMDD
Month Level - YYYYMM
Week Level - YYYYWW
Quarter - YYYYQ
Year - YYYY
If you have a source that has a SQL date datatype for example and want to construct the key for a cube's time dimension at the day level something like the following expression can be used to construct the time reference from a SQL date...
to_number(to_char( time_key, 'YYYYMMDD'))
It may not be this but just a thought.
Cheers
David

Can CWM2 API creating dimensions and cube reference a view

Can CWM2 API creating dimensions and cube reference a view instead of a table.
Can the following API reference a view instead of table
For creating dimensions
CWM2_OLAP_TABLE_MAP.MAP_DIMTBL_HIERLEVEL
CWM2_OLAP_TABLE_MAP.MAP_DIMTBL_HIERLEVELATTR
For creating cubes
CWM2_OLAP_TABLE_MAP.MAP_FACTTBL_LEVELKEY
CWM2_OLAP_TABLE_MAP.MAP_FACTTBL_MEASURE

Hi!
Yes!
And I am using views sometimes.
I am reading at this moment also the following...
maybe someone can explain me this sentence...
MULTIPLE FACT TABLES:
"The CWM2 APIs also support multiple fact tables per cube. In this case, the data
associated with a given combinations of hierarchies can be stored in a separate fact
table. All the fact tables associated with a cube must have the same column
structure."
I get a fetch error message..'cause of this.
What does it mean by "the same column
structure" ???
ODDS

OWB 11.2.0.1 dimension and cube operators + ODBC target database

Hi,
We are considering using OWB to populate a netezza data mart making use of the dimension and cube operators.
Could we use OWB for this/is it supported in this manner or do we need to use another ETL tool/workaround.
Understand OWB supports ODBC as target.
Any advice much appreciated.
Thanks

Hi
You can have ODBC targets but the cube/dim operators use MERGE loading type so its not a tested/supported case using the operators with Netezza. It has been optimized for Oracle.
Cheers
David

Cannot find object after creating dimension and cube.

I need to develop a project using olap api to get olap data.
My db release is 10.1.0.2, owb is 10.1.0.4.
After i create dimension and cube in owb, I cannot find any object i have created in owb. Except that in OEM, after i click the button dimension, there comes an message as that the dimension does not have complete metadata or was created by old release and OEM will create a metadata for it. After that, I can find the dimension in AWM and get the imformation using olap api.
However, there is no measure button in OEM, I cannot find the measures in measure folder. So that i cannot get the information of the MdmMeasureDimension using olap api.
Can somebody help me with this issue? Thanks!

With OWB 10.1 and prior releases to get OLAP metadata for a dimension or cube you must have used the OWB transfer wizard to deploy the OLAP metadata. This bridge basically creates and executes a script with all of the CWM calls to create the OLAP dimension and cube metadata.
When you deployed the dimension from OWB in 10.1 it only created the 'create dimension DDL' for the object.
Cheers
David

How to change column names in dimension and cube views?

whenever AWM creates a view on a dimension or cube, it creates columns for long and short description with full name
forexanmpel, it creates like
CREATE OR REPLACE VIEW OLAPTRAIN.CHANNEL_VIEW
AS
SELECT
"DIM_KEY",
"LEVEL_NAME",
"MEMBER_TYPE",
"DIM_ORDER",
"LONG_DESCRIPTION",
"SHORT_DESCRIPTION",
"ALL_CHANNELS_LONG_DESCRI",
"ALL_CHANNELS_SHORT_DESCR",
"CLASS_LONG_DESCRIPTION",
"CLASS_SHORT_DESCRIPTION",
"CHANNEL_LONG_DESCRIPTION",
"CHANNEL_SHORT_DESCRIPTIO",
"CHANNEL_TYPE",
"CHANNEL_CHANNEL_TYPE",
"CHANNEL_ALL_CHANNELS_ID",
"CHANNEL_CLASS_ID",
"CHANNEL_CHANNEL_ID"
FROM TABLE(CUBE_TABLE('"OLAPTRAIN"."CHANNEL"') );
what is the way to customize the column name? for example for class level, how can we say insterad of long_description and short_description, use LONG and SHORT simply?
i also see the size of long and short descriptions are set to varchar2(60) and varchar2(20), is there a way to change that for each level in AWM?
Thanks

Hi there,
I don't think there is a way to control the column names within the OLAP product itself, but if this is something you really want to do, have you tried creating your own views?
As you can see, the syntax is pretty simple
Thanks,
Stuart Bunby
OLAP Blog: http://oracleOLAP.blogspot.com
OLAP Wiki: http://wiki.oracle.com/page/Oracle+OLAP+Option
OLAP on OTN: http://www.oracle.com/technology/products/bi/olap/index.html
DW on OTN : http://www.oracle.com/technology/products/bi/db/11g/index.html

Dimensions and Cubes Process OK / database 'Process Full' fails

Hello,
I am having trouble processing SSAS database (SQL 2008R2).
Within BIDS environment I can process all dimensions and two cubes - no problem. But when I try to process the database (Process Full – Sequential/ All in one transaction), I keep getting errors about one specific dimension (however the very same dimension
is processed separately just fine).
Any ideas why this would happen?
Thanks,
Lana

Thanks so much for all your replies! Your help is greatly appreciated
J
Here is the error message I am getting (it is the same for bunch of other attributes of the same dimension called
Item):
Errors in the OLAP storage engine: An error occurred while the dimension, with the ID of 'Item', Name of 'Item' was being processed.
Errors in the OLAP storage engine: An error occurred while the 'Product Group' attribute of the 'Item' dimension from the 'InvCube' database was being processed.
OLE DB error: OLE DB or ODBC error: Operation canceled; HY008.
Errors in the OLAP storage engine: A duplicate attribute key has been found when processing: Table: 'dbo_Item', Column: 'Colour', Value: ''. The attribute is 'Colour'.
Keep in mind that the Key for this dimension is called ItemID and there are no duplicates (I checked). Before processing the cube, I have dozens of procedures (within SSIS package that brings the data into DW) that are checking if all the
keys (FK columns on Fact table) exist within dim tables (PK columns). I also do not allow NULLs or blanks for the dim keys within Fact tables, I replace them with
special “DimName-000” Keys that, again, exist within dim tables.
What I am trying to figure out… why I can process Item dimension just fine on its own (I also process all the other dimensions OK), after that I can process both cubes that are using this (and other) dimension(s) … and I can browse the cubes, getting breakdown
by Item / Colour / Product Group, etc... So, everything seems to work perfectly. However, when I try to process the whole database (with all previously processed dimensions and both cubes - there are only two cubes for now, to make is simple), the process
fails, giving me an error about duplicate attribute key for this specific Item dimension.
Any thoughts?
Thanks again!

How to get DIMENSION and CUBE data into JDeveloper???

i have build cube and dimension using oracle analytical workspace manager (AWM),
how i can get the cube and dimension data using jdeveloper 11gR2??
does anybody know?
any extension? or what??

The simplest thing is to use JDBC (java.sql package) to access the cube and dimension views through SQL. Something like this (with appropriate error handling).
String sql = "SELECT dim_key FROM product_view";
Statement statement = connection.createStatement();
ResultSet rs = statement.executeQuery(sql);
while (rs.next())
// Process row here
rs.close();
statement.close(); If your requirements are more complicated or you feel adventurous, then you can use the Java OLAP API. This is the code used by the data viewer in AWM. (Look for olap_api.jar in your database installation -- olap\api\lib\olap_api.jar my windows instance.)

Are fact tables and cubes same in OWB?

Dear all
A simple question. How can I create a star schema (that is, with a fact table and dimensions) using OWB?
OWB has options to create cubes, but as per my understanding a cube is not a fact table.
Cube contains pre-computed data where as fact table contains normal data with references to dimensions.
Please correct me if I am wrong.
thanks in advance

These are just different levels of abstraction.
"Cube" is the highest level of abstraction referring to the overall package of data.
"Star schema" is how cubes are modelled showing the relationships from a fact entity to the dimension entities.
Relational and OLAP are different methods of physical implementation.
In OWB, to promote sharing of dimensions across cubes to avoid inconsistency the idea is you define and build the dimensions independently. Then you define the "cubes" as measures and references to the dimensions. When you build the "cube" you pass in business identifiers from the source data which OWB will use to link the measures to the applicable dimension data. Due to the wonders of inner joins anyone reading the "cube" will only see dimension data related to the data in that cube!
Using OWB you do not need to be concerned with the physical implementation when you use the dimension and cube operators as those operators know what to do.

Failed to build the OLAP cubes (Project Server 2013)

We are receiving errors when attempting to build our OLAP cubes. We've attempted to install the 2008 version of the SQL server native client 2008 but still the error appears. Please advise.
Configuration:
Project Server 2013
SharePoint 2012
SQL Server 2012
Error Message:
===== Initiating OLAP database build process =====
[1/7/2014 2:00 AM] Cube build request message has been added to the Project Server queue ===== Verifying and running pre-build server event handler =====
[1/7/2014 2:00 AM] Verifying and running pre-build server event handler ===== Determining database and OLAP database structure =====
[1/7/2014 2:00 AM] Cube build initialization started ===== Building database and cubes =====
[1/7/2014 2:00 AM] Cube build session started ===== Verifying and running post-build server event handler =====
[1/7/2014 2:00 AM] Verifying and running post-build server event handler ===== Processing OLAP database =====
[1/7/2014 2:00 AM] Process OLAP database session started ===== Process Completed =====
[1/7/2014 2:00 AM] Failed to build the OLAP cubes. Error: Failed to process the Analysis Services database OLAP_FTF on the XYZ server. Error: Errors in the back-end database access module. The provider 'SQLNCLI10' is not registered.
The following system error occurred: Class not registered Errors in the high-level relational engine. A connection could not be made to the data source with the DataSourceID of 'Project Reporting data source', Name of 'Project Reporting
data source'.
Errors in the OLAP storage engine: An error occurred while the dimension, with the ID of 'Project List', Name of 'Project List' was being processed.
Errors in the OLAP storage engine: An error occurred while the 'Start Date' attribute of the 'Project List' dimension from the 'OLAP_FTF' database was being processed.
Internal error: The operation terminated unsuccessfully.
Server: The current operation was cancelled because another operation in the transaction failed.

Hi Importek,
Please have a look to a similar threads that has been answered.
http://social.msdn.microsoft.com/Forums/en-US/a2696e29-e68e-45a8-8dae-fa8fa5640575/receive-the-following-error-when-trying-to-build-cube-errors-in-the-highlevel-relational-engine?forum=sqlanalysisservices
http://social.technet.microsoft.com/Forums/projectserver/en-US/420958bd-4613-451c-ac06-a1f149f64da9/problem-when-trying-to-build-the-cube?forum=projectserver2010general
Finally an article by Brian Smith:
http://blogs.msdn.com/b/brismith/archive/2007/07/16/yet-another-olap-error-message-the-longest-yet.aspx
This might be an issue of the SQL instance alias.
Hope this helps.
Guillaume Rouyre - MBA, MCP, MCTS

Build Dimension in Essbase App

Hi
I am new to essbase applications, and I am trying to load members to a products dimension created in a block storage essbase application, using version 11.1.2.1 but I am getting the error
\\ Member TotalProducts Not Found In Database
TotalProducts,ProductsA,Prod1
\\ Member TotalProducts Not Found In Database
TotalProducts,ProductsA,Prod2
here is the steps I am following
-Created a simple file for loading dimension members as
TotalProducts,ProductsA,Prod1
TotalProducts,ProductsA,Prod2
TotalProducts,ProductsB,Prod3
TotalProducts,ProductsB,Prod4
-Open EAS console and browse to data prep editor
-Select Dimension build file
-Set data source properties as comma (source file is saved as CSV)
-Dimension build settings , select products dimension and use generation reference
-Associate the outline
-Field properties, select each field and select products dimension and add generation number
I confirm that I can see the generations added as field headers as Gen2Products, Gen3Products,Gen4Products and I can validate the rule successfully
Saving the file, right click the database,load data, select data file and rule file but i get the error below and no members added
\\ Member TotalProducts Not Found In Database
TotalProducts,ProductsA,Prod1
\\ Member TotalProducts Not Found In Database
TotalProducts,ProductsA,Prod2
any suggestions, thanks in advance

Read the chapter Building Dimensions and Loading Data (http://docs.oracle.com/cd/E17236_01/epm.1112/esb_dbag/ddlintro.html )
Saving the file, right click the database,load data, select data file and rule file but i get the error below and no members addedWhat Mode are you selecting when you perform Data Load, I'm sure you chose "Load Only", use "Build Only" and see whether it works.

Essbase Dimension build error and Unable to Stop/Start Application

Hi All,
I am trying to build the dimendion in the ASO application it is throwing the Error meaasage " Dimension Biuld failed , ther may be problem in allocating memory".
While i am trying to and Start/Stop my respective Application it is throwing the below error meaasge
I tried to debug this issue by checking the Locked objects, and asked my Admin to close my sessions forcebully if any running and also checking all rules files . But i didn't get any clue/solution from them.
Please help me out from this issue
***ess-dev.ASOAPP     Stop application     April 15, 2009 4:15:08 PM IST     Failed***
***Error: 1013018 Cannot unload database [Sample] while user [ASDF] is performing database operation. Wait for user [ASDF] to complete the operation, or ask the user to abort it. Log out all users and then unload the database.***
***     MaxL Command     April 15, 2009 4:40:52 PM IST***
***Error: 1053012: Object [Sample] is locked by user [ASDF]***
***Error: 1013100: User [ASDF] is Active on Database [Sample]***
***Error: 1013132: Cannot build dimensions. There are other active users on database [Sample]***
***Error: 1241101: Unexpected Essbase error 1013132***
***Error: 1053013: Object [Sample] unlocked by user [ASDF]***
***     MaxL Command     April 15, 2009 4:43:28 PM IST***
***Error: 1270040: Data load buffer [2] does not exist***
Regards

Hi,
Thanks for your answer friend. My admin has successfully killed my session forcebully. And he doubted that i may not have enough rights to Stop/Start application and he provided me the required rights. After that also the error is repeating as below. we two are not getting where we went wrong.
ss-dev.ASOAPP     Stop application     April 15, 2009 8:19:35 PM IST     Failed
Error: 1013018 Cannot unload database [Sample] while user [ASDF] is performing database operation. Wait for user [ASDF] to complete the operation, or ask the user to abort it. Log out all users and then unload the database.
Help me out from this issue

How to build the Logical cube and physical cube

Hi All,
I have to build the logical cube and physical cube ,i dont have idea about this ,that means i think for that we have to do the partition for the cube
may i correct , correct me if i wrong ,plz help me on this
Thanks

Hi,
1. Firsty, logical model and physical model are the terms ,which we generally use in the context of database modelling excercise.
2. Coming to essbase, I am not sure ,what exactly you are trying to co relate . but as you termed 'partitions'. There is one of the types in partitioning called 'Transparent Partition'. Where, you have one cube ( which has data in it) and you can have one mroe cube ( which actually has no data in it). But it can be connected to the former cube with the help of transparent partition. This way, you have 2 cubes , but only one cube has data in it.
Sandeep Reddy Enti
HCC
http://hyperionconsultancy.com/

Cubes - how to extract a single dimension and save it in a table

Hi,
I am new to the cubes concept, although I've used it several times in the past to analyse the data but never explored options beyond that. using excel, I can get different dimentions from the cube such as customer information, location, etc.
is there a way to extract (automatically) a single dimension and save it in a table...? e.g I want to pull customer name and revenues only from the cube, how would I do it?
Thanks

Hi,
tparvaiz wrote:
Hi,
I am new to the cubes concept, although I've used it several times in the past to analyse the data but never explored options beyond that. using excel, I can get different dimentions from the cube such as customer information, location, etc.
is there a way to extract (automatically) a single dimension and save it in a table...? Sure, you can do that.
Say you had a table with many customers, and you were interested in only one of those customers: what would you do? You'd write a query with a WHERE clause that included only the customer you wanted to see.
A cube is a table with many dimensions. You're interested in only one of those dimensions, so what can you do? You can write a query with a WHERE clause to include only the dimension you want to see.
e.g I want to pull customer name and revenues only from the cube, how would I do it?Exactly how to do it depends on the table(s), your requirements and your Oracle version. As the others have said, post a little sample data (CREATE TABLE and INSERT statements to simulate what your real table looks like), and the results you want from that data.
Always say which version of Oracle you're using (e.g. 11.2.0.2.0).
See the forum FAQ {message:id=9360002}

Building Dimensions and Cubes in 11.1

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