Data Warehouse Deployment

I would like to know if you folks have any statistics regarding what types of platforms your customers are deploying
data warehouse solutions on ( Unix, Linux, Windows). I am really interested in what percentage of customers deploy on
each type of platform. Also, if you have any guidelines to use to help you select the appropriate platform, i.e. size of
databases, number of users, etc, that would be very helpful. Thanks.

You could start with:
- Oracle 11g documentation: http://www.oracle.com/pls/db111/portal.portal_db?selected=6&frame=
- Oracle OWB 11g tutorials: http://www.oracle.com/technology/obe/11gr1_owb/index.htm
In the documentation you can find the requirements.

Similar Messages

Permanent Job Opportunity - Oracle BI Data Warehouse Developer Chicago, IL

Submit Resumes to [email protected]
The Business Intelligence Specialist will play a critical role in designing, developing, deploying, and supporting data warehouse/data mart applications. In this role, the person will be responsible for all BI aspects of a data warehouse/data mart application. Primary duties will be to create reporting standards, as well as coach and support power users with selected Oracle tool. The ideal candidate will have 3+ years demonstrated experience in data warehousing and Business Intelligence tools. Must also possess excellent communication skills and an outstanding track record with the user.
Principal Duties:
Participates with internal clients to define software requirements for development, maintenance and/or improvements
Maintains accuracy, integrity, and availability of the data warehouse
Tests, monitors, manages, and validates data warehouse activity, including data extraction, transformation, movement, loading, cleansing, and updating processes
Designs and optimizes data mart models for Oracle Business Intelligence Suite.
Translates the reporting requirements into data analysis and reporting solutions.
Reviews and sign off on project plan(s).
Reviews and sign off on technical design(s).
Defines and develops BI reports for accessing/analyzing data in warehouse.
Customizes BI tools and data sets for different types of users.
Designs and develop UAT (User Acceptance Testing).
Drives improvement of BI system architecture and development process.
Develops and maintains internal relationships. Actively champions teamwork. Uses internal resources to enhance knowledge and expertise of industry, research, products and services. Provides information and support to others in the company.
Required Skills:
Education and Experience:
BS/MS in Computer Science or equivalent.
3+ years of experience with Oracle, PL/SQL Development and Data Warehousing.
Experience Oracle Business Intelligence Suite and Crystal Reports is a plus.
2-3 years dimensional modeling experience.
Demonstrated hands on experience with Unix/Linux, SQL required.
Demonstrated hands on experience with Oracle reporting tools.
Demonstrated experience with translating business requirements into data analysis and reporting solutions.
Experience in training programs/teach users to use tools.
Expertise with software development process.
Effective mediator - able to facilitate constructive and productive discussions with internal customers, external clients, and development personnel pertaining to feature definition, project scope, and status
Problem solving*identifies and resolves problems in a timely manner, gathers and analyzes information skillfully and maintains confidentiality.
Planning/organizing*prioritizes and plans work activities and uses time efficiently. Work requires continual attention to detail in composing and proofing materials, establishing priorities and meeting deadlines. Must be able to work in a fast-paced environment with demonstrated ability to juggle multiple competing tasks and demands.
Quality control*demonstrates accuracy and thoroughness and monitors own work to ensure quality.
Adaptability*adapts to changes in the work environment, manages competing demands and is able to deal with frequent change, delays or unexpected events.
Benefits/Compensation:
Employees enjoy competitive compensation. We have a full benefits package including medical and dental insurance, long-term disability and life insurance and a 401(k) plan.
The client operates within the healthcare industry.
This is a permanent full-time position. After ensuring your availability and qualifications we will put you in direct contact with the client to move forward in the process.

FORWARD THE UPDATED RESUME AS SOON AS POSSIBLE.

Export and Import in Data warehouse

Hi,
I have built a data warehouse project with few dimensions and a cube on a server machine, say server1. Now i have another server machine on which i want to develop this project for bulk production.
I want to import all the developments from server1 to new server machine, say server2, To save my time. I exported data from server1 using export functionality and imported the same file to server2 using import function. My questions is.......
Is it possible to use all the imported objects like cube, dimension, mappings, tables and sequences in the same way in server2 as i was using in server1. If yes then what are the necessary configurations, i have to made.???? because imported dimensions are not able to deploy in new server2 machine giving different errors especially invalid location and invalid table errors for mapping and dimensions.
thanks in advance
imran

you can sue the MDL file on your new server but you have to do the following:
1. Register locations.
2. Configure the mapping to use the new locations registered.
4. Configure Control Center locations.
Register the location in Control center
Deploy the mappings/Process flows
The Invalid location error is occuring becaue the location is not configured and registered in your connection explorer.

SCOM 2012 R2 Data Warehouse failed to request a list of management packs from SQL RS server

Hello, I get this alert can someone help me out ?
I did check the Proxy and is configured on all the MS and DW server.
Alert Description
Data Warehouse failed to request a list of management packs which contain
reports deployed to SQL Reporting Services Server. Report deployment process
failed to request management pack list from SQL RS Server. The operation will be
retried.
Exception 'WebException': The request failed with HTTP status 407:
Proxy Authentication Required ( Forefront TMG requires authorization to fulfill
the request. Access to the Web Proxy filter is denied. ).
One or more
workflows were affected by this.
Workflow name:
Microsoft.SystemCenter.DataWarehouse.Deployment.Report
Instance name:
Data Warehouse Synchronization Service
Instance ID:
{FDC7C774-397C-3660-9D57-EFBED3B60329}

Every call to the SRS generates a call to the OpsMgr SDK on Root Management
Server to check permissions (security integration). It apepars the account
the call is made under does not have access.
To figure out which account is used follow this process:
1) Run console and click on "Run As Profiles" in the Administration space;
2) Double-click "Data Warehouse Report Deployment Account";
3) Click on "Run As Accounts" tab;
4) If you have a line in the accounts which lists your Root Management
Server in the "Target Computer" column, note the account name in the "Run As
Account" column. If you do not have such a line, follow steps 2-4 for the
"Default Action Account" profile and note the account name;
5) Click on "Run-As Accounts" in the Administration space and double click
the account name which you got on step 4)
6) Switch to the "Account" tab and note domain name and user name;
Once you found the account (say, DOMAIN\user) check that it is a member of
the User Role "Operations manager Report Security Administrators". If not -
add it and the process will recover automatically.
Also You can refer below links
http://blogs.technet.com/b/smsandmom/archive/2007/09/06/system-center-operations-manager-doesn-t-show-any-reports.aspx
http://www.networksteve.com/enterprise/topic.php/Data_Warehouse_failed_to_request_a_list_of_management_packs..._E/?TopicId=16627&Posts=2
Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question, please click "Mark As Answer"

Computer IP address in data warehouse?

Hi,
In the Service Manager 2012 data warehouse, I'm trying to locate the table and fields for a computer's IP and MAC address as seen in the Service Manager console, under Configuration Items => Computer => Hardware => Network Adapters.
In the DW, I can find the computer and its related network adapter(s), but not table storing the MAC and IP address(es). In which DW table can I find them? Are they copied to the data warehouse by default, or do I need to do some hokey pokey to get it working?
Sebastian

Hello Sebastian,
Did you find out why the IPaddresses and the macaddresses are not in the networkadapters view,
i'm having the same problem, and have no idea why the data is not filled in...
The entries in computer and deployed computer should be filled in
by the scom connector apparently
thanks,
Dennis

How do I design this in data warehouse?

I am working on building a data warehouse for insurance quote data.
Each quote will have an applicant and can have an optional co-applicant. Each applicant and co-applicant will have prior auto insurance history, prior home insurance history, current auto insurance information and current home insurance information.
So do I create Applicant and Insurance dimensions here?

Hi Ashan,
Just so you know.
I completely reworked our methodology of building data warehouses back in 2012. The new way of building data warehouses is quite different to the old way. The way you listed.
The methodology presentation is on this link.
https://www.youtube.com/watch?v=Df4CgOtrFq8
Video channels are here. http://www.instantbi.com/videos/
Downloads are here: http://www.instantbi.com/company/downloads/
I have been doing BI since 91 and what we have done now is industry leading.
I am an MSDN so we do our development on MSFT first and then deploy where ever our clients want us to deploy.
Best Regards
Peter Nolan

Oracle BI (Siebel Analytics) / Data Warehouse Data Security

Hello,
We are implementing Oracle Siebel Analytics and Custom datawarehousing using Oracle 9i DB. I am interested to know if we can implement consistent data security model for different data marts. Means with one single data warehouse, I want to implement data security model or policies in one place and they are applied consistently across all of the datamarts.
1. Can we or oracle support this kind of secinerio.
2. If yes, what would be perfect model an example will be helpful, and if not what best approach is available to resolve this security model.
Any suggestion or help would be great.
Regards
Girish

Hi, Do you also get some other packages names that the error msg reports like ...
RPE-01012 Cannot deploy PL/SQL maps to the target schema because it is not owned by the Control Center and "SOME WRT.... package names" I think once did I face this and made sure that the repository user has some packages granted through OWBREPOS_OWNER/OWB_REPOS_OWNER to the user you are using to run the mapping.
Regards,
Mohammad Farhan Alam

Architectural Design - New Data Warehouse

Hello All,
This is my first post to the oracle discussion forums and I'm looking forward to the interactions with other ODWB users.
I am just begining to implement a design for a new data warehouse, our team has already defined user requirements for a subset of the business (Sales/Marketing) and have committted a logical model to paper. We have installed our dev environment and are now ready to begin the work of creating our prototype.
I've read all the Oracle doc I can get my hands on regarding implementing your DW objects and have been pondering the approach. ROLAP or MOLAP.....
it seems to make sense that we should deploy into a ROLAP environment bringing in all our data from our staging area to create a stable relational data store. Then select most used or queried dimensions and facts to deploy in a MOLAP environment... has anyone used this approach? any lessons learned? do you have to choose one method or the other? or can you take a blended approach ? would you deploy both in the same database instance or seperate the two?
thx

I'm somewhat new to OWB coming from an Informatica background but in our environment, we are doing the same thing. Our Enterprise Data Warehouse will be based on ROLAP and I intend to use MOLAP for subsets of the EDW.
Dimensions in Oracle are somewhat interesting in that they are "leveled" and you can tie cubes or "fact tables" to any level of the dimension. This is a bit un-Kimball-like and has taken some getting used to. I think it is a powerful feature but I will have to experiment some until I understand it better.
One critical bug with 10.2 I've run into is with dimension roles - The time dimension for instance. Typically this is one table that is aliased many many times. If you exceed roughly 5 roles for the time dimension, the generation of the object fails since OWB generates a single anonymous PL/SQL block that exceeds 64k. Its a documented bug in development with no workaround according to metalink.
Other gotchas are that table changes always try to generate "create table" scripts even if you only add an index or change parallelism. We have had to do table maintenance outside OWB and then keep the metadata in sync up until now.
I haven't done any of the MOLAP yet but from what I read there are some restrictions - such as you can't have roles on dimensions for MOLAP and I believe you can't have SCDs in MOLAP. I don't know how Time dimensions are handled in MOLAP without roles! Do people really generate tables for every single time dimension in OWB???
Hope you share your experiences here!
- Mike Taylor

Data Warehouse issue after deploaying Server 2012 MP in SCOM 2007R2

Hi all,
I have recently installed Server 2012 MP in SCOM 2007R2. But now I get DataWarehouse warnings that the specified schema name "sdk" either does not exist or I do not have permission to use it.
It's event 31565 with source Operations Manager Health Service Modules
Can anyone help me?
Failed to perform Data Warehouse component deployment operation:Install; Component: Script, Id: '79c157e5-9aa8-7045-d0b8-19e2d713d6c7',Management Pack Version-dependent Id: '01f04523-ee6c-1f3e-08a1-a108dda43507';Target: Database, Server name: 'SQL\SCOM,10100', Database name: 'OperationsManagerDW'. Batch ordinal: 0; Exception: The specified schema name "sdk" either does not exist or you do not have permission to use it.
Best regards,
Oliver
Gruss Oliver Scholl

Hi Gruss,
Was there any resent permission change on the SQL server or the Data warehouse ?
Has your Data reader and writer account Sys admin permissions on the SQL application ?
Also is the reporting tab working and are the reports related to this and other management packs working ?
Gautam.75801

Data warehouse database


Today I came across one very interesting question


"Data Warehouse can be only deployed in relation database."


Above statement is true or false.


If we see it simply without any complication or may be go back 7-8 years it's answer may be false as I find out after doing research on it


"A data warehouse can be normalized or denormalized. It can be a relational database, multidimensional database, flat file, hierarchical database, object database, etc. Data warehouse data often gets changed. And data warehouses often focus on a specific activity or entity." Larry Greenfield


The data warehouse is normally (but does not have to be) a relational database. It must be organized to hold information in a structure that best supports not only query and reporting, but also advanced analysis techniques, like data mining. Most data warehouses hold information for at least 1 year and sometimes can reach half century, depending on the business/operations data retention requirement. As a result these databases can become very large.en.wikipedia.org


But I think when we look into the complication of designing and functionality which we are expecting from a data warehouse today and plus the concept which use when designing the data warehouse structure like star scheme, snow flake etc., I think it cannot be done in any other type of database which don't follow the relation database concept. We may call it multidimensional database or ORDBMS and we may talk about cubes, measures, dimension and so on but from the base it has to follows the relation database.


Let me know if anybody has anything to say about it.

 
Regards,
 
Raj 
www.oraclebrains.com<a>
 POWERED by the people, to the people and for the people WHERE ORACLE IS PASSION.

Thanks Justin!
 
I agree with you the concept exist before the relational database was invented. Last time I know they call it EIS then they name it MIS and now data warehouse. But what I am taking about is modern data warehouse technique, If you really think that any other type of database can support it without following relational database concept. Let me know which one?
 
I am still searching for my answers and have discuss with lot of people, but when I asked them have they seen any implementation of data warehouse without using relational database, the answer that I get is always negative. 
Raj 
www.oraclebrains.com<a>
 POWERED by the people, to the people and for the people WHERE ORACLE IS PASSION.

Designer Vs. Oracle Data warehouse builder

Dear all,
Currently I'm responsible of building a Data warehousing project using Oracle database. I'm trying to decide on a tool for modelling my datawarehouse. I have two options:
1) Designer: we have some experience with this tool and we are using it for our main OLTP application.
2) Oracle Data Warehouse builder: we are using this to design our ETL processes.
I want to get some advice on whether the OWB is capable of modelling my datawarehouse and of doing a retrofit action. also, I try to standardize on the tools that are using in the Data Warehouse department (currently we are using only OWB).
I will appreciate for any other advice to help in my selection process.
Best Regards,
Bilal

Hi,
In my experience this choice depends on the implementation of the datawarehouse. If you are building a "pure" Kimball style dimensional data warehouse you should be able to do this using OWB. I have architected such a DW in the past using only OWB, so I am speaking from experience.
If on the other hand you are planning to implement an Inmon style CIF, if your requirements includes an operational data store (ODS), or if you for any other reason anticipate that you are going to be doing a lot of ER modeling, then I would not recommend using the current release of OWB for modelling. (Note however that there are significant improvements to the modelling capabilities in the Paris release of OWB, so this may change in the future)
The advantage of improved maintainability when using a single tools needs to be weighted against the improved functionality if you choose a combination of the two. In the "two tool" scenario strict development and deployment routines need to be enforced to avoid that the model in Designer comes out of sync with the metadata in OWB. (Consider the effect of a developer making a change to a table definition in OWB and deploying it directly to the database without updating the model in Designer.)
Hope this helps.
Regards,
Roald

Data Warehouse Jobs Failing

As you can see in the screen shot, everything is failing. I have tried un-registering and regerstering the data warehouse but I get the same results. There arent any relevent events on the SCSM server, but the data warehouse has the following:
Event 33537:
Deployment related exception has been caught during ETL. This is either due to a failure in Deployment or we have exceeded the number of retry attempts. Work item will be marked as failed.
Additional information:
ETLModule: etlMod=NULL
RetryAttempts: 0
WorkItem: WorkItemId = 35013940, processModuleId = 11694, isDirty = True, BatchId = 115291, status = Failed, RetryCount = 0, ErrorCount = 1925, TakenTime = 12/20/2013 19:30:45, Module
= ModuleName = LoadDWDataMartReleaseType, ModuleType = System, ModuleDescription = Deployment Execution Step, ProcessCategoryName = Load, ProcessName = Load.Common, DeletedBatchId=0
Exception details:
Exception type: Microsoft.EnterpriseManagement.Common.ObjectNotFoundException
Exception message: An object of class ManagementPackWarehouseModuleType with ID 28be8a8c-772c-4d5a-94df-2e30784497d7 was not found.
Stack trace:
   at Microsoft.EnterpriseManagement.DataWarehouseManagement.GetWarehouseModuleType(Guid id)
   at Microsoft.SystemCenter.Warehouse.Utility.Store.GetWarehouseModule(Guid id)
   at Microsoft.SystemCenter.Etl.ETLModule.GetModule(WorkItem etlWI)
   at Microsoft.SystemCenter.Etl.ETLModule.OnDataItem(DataItemBase dataItem, DataItemAcknowledgementCallback acknowledgedCallback, Object acknowledgedState, DataItemProcessingCompleteCallback
completionCallback, Object completionState)
Events 33333:
Data Access Layer rejected retry on SqlError:
Request: CreateSolutionPackImportMessage -- (TransactionId=e5fad4da-21d2-41d9-b818-97c6efb299bb), (Message=PABEAGUAcABsAG8AeQBtAGUAbgB0AE0AZQBzAHMAYQBnAGUAIAB4AG0AbABuAHMAPQAnAGgAdAB0AHAAOgAvAC8AcwBjAGgAZQBtAGEAcwAuAG0AaQBjAHIAbwBzAG8A...),
(RETURN_VALUE=-1)
Class: 0
Number: 3621
Message: The statement has been terminated.
And…
Data Access Layer rejected retry on SqlError:
Request: CreateSolutionPackImportMessage -- (TransactionId=e5fad4da-21d2-41d9-b818-97c6efb299bb), (Message=PABEAGUAcABsAG8AeQBtAGUAbgB0AE0AZQBzAHMAYQBnAGUAIAB4AG0AbABuAHMAPQAnAGgAdAB0AHAAOgAvAC8AcwBjAGgAZQBtAGEAcwAuAG0AaQBjAHIAbwBzAG8A...),
(RETURN_VALUE=-1)
Class: 16
Number: 266
Message: Transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements. Previous count = 1, current count = 0.
And a lot of these...
Message: Failed to create BaseModule InstanceWrapper
Module name: TransformChangeImpact
Process: Transform
Entity type: Outrigger
Entity name: ChangeImpact
Entity GUID: dcb7f8f8-a4e4-876e-9cd8-dd98f7aab4d1
Field warehouse source ID value: 1
Module GUID: 82e2491e-d690-c73c-b794-807346fa8a7e
Message: Failed to create BaseModule InstanceWrapper
Module name: LoadOMDWDataMartIncidentResolutionCategory
Process: Load
Entity type: Outrigger
Entity name: IncidentResolutionCategory
Entity GUID: b668ce94-7450-6adc-2ad0-b9104c82b86b
Field warehouse source ID value: 1
Module GUID: 5d0ed3d3-068b-9315-d637-79d4ce8a5fe1
At first (after some google-ing) I figured it was due o bad DB grooming. I tried following these instructions:
http://social.technet.microsoft.com/Forums/systemcenter/en-US/5919b0d7-4510-4d96-a043-89092655cc06/error-in-transformcommon-etl-job?forum=dwreportingdashboards
and I did this...
http://support.microsoft.com/kb/2853442
But it still fails.
Any suggestions?
We're running 2012 sp1 on SQL 2008R2.
- Get on the floor, do that dinosaur

Do you have MPs that have failed deployments? If yes, right click on them and click on "Restart Deployment". You kind of have to figure out the sequence if there are dependencies. If the deployment fails, post the error message from the event log
(Operations Manager log source)
If you recently upgraded to 2012 R2, you may want to execute the script from the release notes (http://technet.microsoft.com/en-us/library/dn299381.aspx)

SQL Server Parallel Data Warehouse Appliance - Cross-domain Watcher node

Hi,
Is it supported to have the PDW appliance in one domain and the watcher node in a different domain?
If so, is a domain trust required or can certificates be used?
Thanks!

Thanks for the response Mai, but it does not answer my question.
I had already read the MP guide for System Center Monitoring Pack for SQL Server 2012 Parallel Data Warehouse Appliance before asking the question.
The guide identifies that all monitoring of the SQL PDW appliance is performed from a dedicated server that acts as a "watcher node". What the guide does not indicate is whether the watcher node must be in the same domain as the SCOM management
servers or if it can be located across an untrusted boundary.
In my case, the untrusted domain that requires monitoring includes the PDW appliance which has already been deployed and I plan to leverage a new SCOM gateway to simply the configuration, minimize the number of required certificates, firewall exceptions,
etc as other servers also require monitoring.
I want to locate the watcher node within the untrusted boundary and need to determine if this is a Microsoft-supported configuration or not.
Is there a more appropriate forum for this question, please?
Much thanks!

Exchange 2010 Management Pack Data Warehouse Synchronization Fails

Hi Everyone!
Has anyone had success with importing the Exchange 2010 management pack into Service Manager 2012?
When we try to import it, it fails.
Upon further investigation, the 'System Center Core Monitoring' management pack (which is not included with Service Manager 2012) is a dependency of the Exchange 2010 management pack but
after we import it from the OpsMgr 2012 media, we still get the following warning when we import the Exchange 2010 management into Service Manager 2012...
"The management pack was imported successfully.
Warnings (1):
Override verification failed, cannot find Management Pack Element : : Cannot find ManagementPackElement [Type=ManagementPackRule, ID=Microsoft.SystemCenter.Agent.MonitoringHost.PrivateBytesThreshold] in management pack ManagementPack:[Name=Microsoft.SystemCenter.2007,
KeyToken=31bf3856ad364e35, Version=6.0.6246.0]."
...and, the Exchange 2010 management pack status in the Service Manager 2012 Data Warehouse 'Management Pack' view indicates 'failed' after the MPSyncJob completes.
We have a few 'Business Services' which depend on the Exchange 2010 management pack that we are trying to synchronize from OpsMgr 2012 and we are stuck until we can get the Exchange 2010 management
successfully imported into Service Manager 2012 and have it show a status of 'Completed' the Service Manager 2012 Data Warehouse 'Management Pack' view.
Nothing useful in the
Service Manager 2012 Data Warehouse and Management servers events logs that we could see.
Any help or guidance would be GREATLY appreciated!
Regards,
JJ

Update: I Just tested with CU2 installed for SrvMgr 2012 and OpsMgr 2012 and version 14.3.38.2 of the Exchange 2010 management, but the management pack still fails to deploy to the SrvMgr 2012 data warehouse (the management pack status shows
up as 'failed' and the MPSyncJob shows the management pack as 'pending association'). The only clue I have for this problem is the folllowing warning which occurs when I import the management pack into SrvMgr 2012...
I also get the following 33519 Event ID warning in the Operations Manager event log on the data warehouse server...
~~~~~
Management pack association ignored. This does not require any action. If you continue to frequently see this warning, contact your administrator. This process will continue to retry.
Management pack ID: e2296ed5-ddbc-ebc7-3881-c5288adaa7cf
Management pack name: Microsoft.Exchange.2010
Management pack version: 14.3.38.2
Data source name: SRV
Message: Either the MP has failed deployment Or any of its references has failed deployment
~~~~~
Has anyone had success with getting the Exchange 2010 management pack imported and successfully deployed to the SrvMgr 2012 data warehouse?
The good news is that even though the Exchange 2010 management pack has a status of failed, the distributed applications in OpsMgr 2012 that depend on the Exchange management pack now show up under Configuration Items/Business Services including
all related service component objects which was what I was trying to accomplish in the first place, so for now I'll just leave the Exchange 2010 management pack in the data warehouse with a failed status.
Regards,
JJ

Best practice of metadata table in data warehouse environment ?

Hi guru's,
In datawarehouse, we have 1. Stage schema 2. DWH(Data warehouse reporting schema). In stageing we have about 300 source tables. In DWH schema, we are creating the tables which are only required from reporting prespective . some of the tables in stageing schema, have been created in DWH schema as well with different table name and column names. The naming convention for these same tables and columns in DWH schema is more based on business names.
In order to keep track of these tables we are creating metadata table in DWH schema say for example
Stage                DWH_schema
Table_1             Table_A
Table_2             Table_b
Table_3             Table_c
Table_4              Table_DMy question is how do we handle the column names in each of these tables. The stage_1, stage_2 and stage_3 column names have been renamed in DWH_schema which are part of Table_A, Table_B, Table_c.
As said earlier, we have about 300 tables in stage and may be around 200 tables in DWH schema. Lot of the column names have been renamed in DWH schema from stage tables. In some of the tables we have 200 column's
so my concern is how do we handle the column names in metadata table ? Do we need to keep only table names in metadata table not column names ?
Any idea will be greatly appriciated.
Thanks!

hi
seems quite a buzzing question.
In our project we designed a hub and spoke like architecture.
Thus we have 3 layer, L0 is the one closest to the source and L0 table's name are linked to the corresponding sources names by mean of naming standard (like tabA EXT_tabA tabA_OK1 so on based on implementation of load procedures).
At L1 we have the ODS , normalized model , we use business names for table there and standard names for temporary structures and artifacts
Both L0 an L1 keep source's column names as general rule, new columns like calculated one are business driven and metadata are standard driven.
Datamodeler fits perfect for modelling L1 purpose.
L2 is the dimensional schema business names take place for tables and columns eventually rewritten at presentation layer ( front end tool )
hope this helps D.

Data Warehouse Deployment

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