How create oracle data Warehouse

hi master
sir i am use oracle 9i how i creat data Warehouse
and how use oracle portal for net
please give me idea how i start and which woftware i use
thank's
aamir

Do you want to craete a Data Warehouse database or you want to learn on how to design a Data Warehouse ?
Creating a Data Warehouse database is no different than creating an OLTP database, the only thing in mind should be is that DW are mostly read-only, so you should set initialization parameters suiting DW .

Similar Messages

  • Oracle Data Warehouse DB and OLAP_OBIEE DB [OBIEE11g]

    Hi Experts,
    I have a problem regarding joining the 2 DB in an Analysis report.
    The scenario is this:
    Oracle Data Warehouse is DB_1 and OLAP_OBIEE is DB_2
    DB_1
    -col1
    -col2
    DB_2
    -col3
    In Analysis report when they are queried or run separately, obviously there will be a report generated.
    But when this 2 DB columns are joined together in one Analysis report, I always get 'No Results'.
    Please help how do I fix this issue :(
    Thanks,

    Hi,
    check the following links:
    http://www.rittmanmead.com/2007/10/reporting-against-multiple-datasources-in-obiee/
    http://108obiee.blogspot.com/2009/01/fragmentation-in-obiee.html
    http://gerardnico.com/wiki/dat/obiee/multiple_subject_area

  • PAS - Connection to Oracle data warehouse

    Hi,
    We are looking to connect to an Oracle data warehouse and have installed an Oracle client on the server.
    We created the link ID and are using the built in connection to Oracle OCI.DLL. However we get an error back saying that it could not load the OCI.DLL
    Any ideas?
    Colin Cooper

    Hi Robert,
    I'm confused Pedro. What is the NW Database Instance? Is this another installation of CE? Or is this the relational database running behind CE? More confusing is the fact that you say SQL Server is installed on the "Database Server". If SQL Server is on this machine, why is Oracle in the picture?
    Because of the system landscape this customer have, we use a distributed system instalation of NetWeaver (NW), that is composed by:
    - Central services instance (SCS)
    - Database instance (DB)
    - Primary application server instance
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    Also MS SQL Server is installed in the same server, because it's used as sytem database for SSM (store all the metadata of SSM).
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    I understand that. My question is, does Oracle have a fix for this issue available? Have you checked metalink to see whether or not a recent Oracle patch set, or the most recent Oracle client, already has a fix for this issue?
    I did not check that. I will check with the customer what is the version currently used and if exists any fix this issue.
    I have a machine running Windows 2003 Server 64 with the 32bit Oracle client installed and have no issues with setting up an ODBC connection to Oracle. What I had to do though was ensured that I ran "C:\WINDOWS\SysWOW64\odbcad32.exe" and not the standard "%SystemRoot%\system32\odbcad32.exe" which is what the ODBC applet in control panel usually calls. Because you're running 32bit Oracle, you have to run the 32bit ODBC applet in order to successfully create the System DSN which can be called by PAS.
    That's exactly what I need. As soon I try this I give you a feedback.
    Thanks
    BR
    Pedro

  • Tools required to install to work with Oracle Data warehouse

    Could anyone please guide me...as I am quite new to Oracle...
    till now I was working on Data warehousing using Microsoft tools i.e. (SSIS, SSRS, SSAS, SQL Server)
    So Please tell me which are the tools required to install to work with Oracle Data warehouse
    I came to know about OWB and OBIEE, but not sure what exactly these are ?

    In order to create and develop a webcenter portal application, you only need to install JDeveloper and download the WeBCenter extensions. That's true.
    But this install does not include the WebCenter services like dicussions, document services, analytics,... If you want to use these and integrate them in your portal, then you would need to install the suite as described on my blog.

  • Tables between OBAW and Oracle Data Warehouse in OBIA rpd are different

    Hi,
    The tables in the Data Warehouse DB is different as compared to the tables in the physical layer of the Oracle data Warehouse in OracleBIAnalytiscApps.rpd.
    When I click update Row Count, it gives me below error message:
    There was an error while updating row count for "Oracle Data Warehouse"."Catalog"."DBO"."W_CTRY_REGN_D":
    [nQSError :17001] Oracle Error Code: 942, message: ORA-00942:Table or view does not exist at OCICallSTmTEXECUTE
    Whereas when I click on some other tables for Row count there is not error.
    Also, When I am trying to look for some specific table which exist in Data Warehouse (that has the data), it does not exist in the rpd.
    Kindly assit me.

    hi,
    Have a look
    Not able toView Data in Answers
    Let me know
    thanks,
    saichand.v

  • 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

  • How i create oracle9i data Warehouse

    hi master
    sir i am use oracle 9i with devloper 6i
    sir how i create data Warehouse with my 9i data base
    please give me step
    what software i install
    how i use portal
    how i create datamart
    how create cub
    how i connect my oracle 9i with Warehouse
    how i show my portal on net
    how i import my oracle 9i data in Warehouse
    how i create multidimation report for net becuase my other office in other
    city
    how i import diffrence type data from diffrence type of database
    please give me idea how i start and how i get above result
    thank's
    aamir

    You need to have the enterprise version of Oracle DB 9.2.0.2 in order to have DM4J to work fully. It will run on Oracle DB 9.2.0.1 but you would need to install a JMS patch to have the components run successfully. This is better done by just upgrading to 9.2.0.2.
    If you have the correct DB then you need to establish a connection to the db using the "ODM" account and password. You can not access data mining in the db other then through this account.
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  • Is the OBIEE used to create a data warehouses dynamically?

    Management where I work wants to use the OBIEE Administrator to source a 3NF normalized database and create a "virtual data warehouse" in the Business Modeling Mapping layer of OBI Administrator as a Star Schema model is required by OBI Business Model layer. They claim they were told by an Oracle sales rep that the Administrator tool could do this.
    Is this possible? As OBI issues only SQL and not PL/SQL how can one "create" dimensions, lookup tables and fact tables dynamically? And even if it could the performance hit to recreate the virtual data warehouse each time a query is issued would be huge.
    Having used Prism Warehouse Builder and DataStage in the past to create data warehouses I am aware that one needs a procedural programming language to create and maintain the star schema tables (surrogate key maintenance, controling workflows, maintaining slowly changing dimensions, intermediate lookup tables, etc.). SQL was not meant to do this heavy lifting programming. Afterall, isn't this why Oracle Warehouse Builder and previously Informatica is shipped with OBIEE suite because OBI is not an ETL tool to create dimensional models? One uses an ETL tool to create the dimensional data model for OBI to access and pass along the metadata to OBI Answers.
    So is it normal practice to use the Administrator's Business Mapping/Modeling layer for creating a virtual star schema logical tables from physical tables that are 3NF? Or is the tool used to access already denormalized tables in the physical layer that were created using Informatica or OWB or other ETL tool?

    I asked an "Expert" in OBIEE. Here are snippets of his response:
    "Be aware though that the transformation ability is fairly limited, and
    will only really work with data that is very close to a star schema, i.e.
    the data can be easily transformed through a couple of denormalizations and
    table joins. If your source data is very normalized and cannot easily be
    transformed into a star schema, you would need to use a tools such as
    Informatica, OWB or similar to extract data from your source systems, load
    and then transform it into a data warehouse or data mart and report of of
    that. The more that your data needs to be transformed (i.e. the closer it
    is to a 3NF model) the more likely it is that you'll need to use an ETL
    tool, and a data warehouse or data mart, to host your data."
    And in response to my noting the lack of documentation on how to model a 3NF to Star Schema his response was:
    "No, you're right, the documentation doesn't really go into "how to" turn a 3NF model into a dimensional model. If you look back to when OBIEE was a Siebel product, the documentation was really aimed at either Siebel consultants or customers who had been on the training, they didn't want customers "off the street" to try and implement OBIEE as it would hit their services revenue. That's where the blog posts we do, things like the Oracle-by-example training courses on OTN and so on come in, otherwise as you say there's little out there on the best way to transform your model - it's mostly passed on "word of mouth" or is built up from experience on working on projects."

  • SCOM 2012R2 Re-Create OperationsManagerDW (Data Warehouse DB)

    Hi, I know it's daft, but the disk's that housed my DW (and stupidly it's backups) have gone POP!
    I've replaced etc, but now I need to Re-Create the DW, I know this is not as easy as it used to be nowadays as it's created at install time, and there's no Executable to do it any more like there was in previous versions of SCOM.
    So my Question is, how to do it, I've re-created the database itself, and even run the DataWarehouse.Initial.Setup.sql into it, however obviously all the fields that do the ID'ing etc are still blank and need to be populated (specifically stuff like the
    dbo.ManagmentGroup DB etc)
    My question is, CAN this be re-done nowadays? and if so How?
    Thanks again.
    Ashleigh

    Hi,
    Please refer to the below link to follow the procedure in it to move the data warehouse database to a different system:
    How to Move the Data Warehouse Database
    http://technet.microsoft.com/en-us/library/hh268492.aspx
    Regards,
    Yan Li
    Regards, Yan Li

  • ACI Setup - How to Configure Data Warehouse Database - Partitoning

    After reading the ACI Install Guide & Data Warehouse documentation, I have some questions regarding how to setup the database:
    - Should database partitioning be setup? If so, what tables should be partitioned and what should they be partitioned by?
    - Are there any other best practices or tips for setting up & tuning the database?
    We are trying to avoid the (painful) situation of having to add partitioning later on; it is much easier to add it up front (if done correctly up front).
    Thanks in advance for any advice!

    On the tables recommended for partitioning, the partition key is nullable. If ATG inserts a null value into the timestamp column of one of the partitioned tables, we'll receive an ORA-14300 or ORA-14440 error. Oracle isn't able to figure out what partition to map that record to.
    Can the columns be changed to NOT NULL? Or, can the application guarantee a nullable value won't be inserted?
    Here are some example columns:
    ARF_SITE_VISIT.START_VISIT_TIMESTAMP --> TIMESTAMP(6) null
    ARF_REGISTRATION.REGISTRATION_TIMESTAMP --> TIMESTAMP(6) null
    ARF_LINE_ITEM.SUBMIT_TIMESTAMP --> TIMESTAMP(6) null
    ARF_PROMOTION_USAGE.USAGE_TIMESTAMP --> TIMESTAMP(6) null
    ARF_RETURN_ITEM.SUBMIT_TIMESTAMP --> TIMESTAMP(6) null
    Thanks

  • How to reset data Warehouse table

    For fixing some mistakes, I'd like to reset the whole Data Warehouse tables ( clear alll data in the tables).
    Is there any way to achieve this with DAC client?
    Roger

    Nothing to worry. We have the option in DAC. Navigate to Tools -> ETL Management -> Reset Data Sources. Give the confirmation text in the dialog box. With this action the refresh dates will become Null for all tables and which causes to do a full load in the next ETL run.

  • Recommended throughput for Oracle data warehouse

    Hi, I know up front this is going to be a vague question...but I'm trying to determine approximate I/O bandwidth for a data mart server. Right now we're hosting 3 or 4 different marts on it, but that number is going to increase.
    Oracle's DW "2 day" class recommends starting with either maximum throughput from user queries, or basing it off of batch windows. Right now the server is barely used for end user queries, as we haven't yet implemented a BI tool to allow users easy access (that's underway right now). So I find it hard to base any info on that. However, it's on the way, and I'm in charge of the BI took (OBIEE). I'm having nightmares that we get OBIEE deployed, and our queries end up taking 5 minutes each to get answers... Right now, on the system basically by myself, if I do a simple "select sum(amount) from fact_ledger", where fact_ledger is a 1 Gb table (with 40 million rows), it takes almost a full minute to run. It feels like I could add this up by hand and get an answer faster...and this certainly doesn't compare with other Oracle marts / DWs I've worked on in the past.
    From a batch window standpoint, all I can say is that it feels really, REALLY too slow to me. Right now, some jobs that start with a 40 million row table and join it to 6 or 7 other small tables (looking up surrogate keys) and writing to a non-logged, non-indexed output table takes over 2 1/2 hours to complete. To me this should be a 15 minute job.
    We've asked IT to do a "root cause analysis" of why performance is so bad - but as part of that, the architecture group wants something more concrete than "it just feels way too slow". So does anyone have some general guidelines they can provide? I guess our detailed info would be:
    - three marts, each of which has a fact table around the 30 - 60 million row level
    - simple "join 30 million row staging table to look up surrogate keys" and writing results is taking 2.5+ hours
    - we expect at some point to have mabe 50 - 100 users running data concurrently (spread across the marts)
    - users will be performance both canned and ad-hoc analysis against it...and they are high level business users, aren't going to be happy with waiting 2 minutes for a simple answer
    My start was to swag this as requiring 6 CPUs or so, which would indicate (according to Oracle's best practice docs) of needing somewhere betweeen 1.2 GB/s to 2.4 GB/s throughput. I'm assuming if it takes almost a full minute to read a 1 GB table, that our IO is currently 60 to 120 times too slow. Does that make sense?
    Thanks and sorry for the lack of details...we just don't know yet.
    Thx,
    Scott

    Why don't you start by taking an AWR report from those two hours so you can see what is the bottleneck for your system ?

  • Oracle Development Survey on Data Warehouses: How Does Yours Compare?

    At the start of most data warehouse projects, or even during a project, I am sure you as customers try to find answers to the following questions to help you plan and manage your environments:
    * Where can I find trend and comparison information to help me plan for future growth of my data warehouse?
    * How many cpu's do other customers use per terabyte?
    * How many partitions are typically used in large tables? How many indexes?
    * How much should I allocate for memory for buffer cache?
    * How does my warehouse compare to others of similar and larger scale?
    The data warehouse development team, here at Oracle, would like to help provide answers to these questions. However, to do this we need your help. If you have an existing data warehouse environment, we would like to obtain more technical information about your environment(s) by running a simple measurement script and returning the output files to us, here at Oracle. This will allow our developers to provide comprehensive documents that explain best practices and get a better understanding of which features our customers use the most. This will also allow you as Customers, to benchmark your environments compared to other customers’ environments.
    From a Company perspective we are also interested to get feedback on features we have added to the database, are these features used, how are they used etc. For example we are keen to understand:
    * Which initialization parameters are most frequently used at what values?
    * How many Oracle data warehouses run on RAC? on single nodes?
    * Is there a trend one-way or the other, especially as data volumes increase?
    * Does this change with newer releases of the database?
    All results from these scripts will be held confidential. No customers will be mentioned by name; only summaries and trends will be reported (e.g., “X percent of tables are partitioned and Y percent are indexed in data warehouses that are Z terabytes and larger in size.” or “X percent of Oracle9i and Y percent of Oracle10g data warehouses surveyed run RAC”). Results will be written up as a summarized report. Every participating customer will receive a copy of the report.
    Terabyte and larger DW are the primary interest, but information on any data warehouse environment is useful. We would like to have as many customers as possible submit results, ideally by the end of this week. However, this will be an on going process so regular feedback after this week is extremely useful.
    To help our developers and product management team please download and run the DW measurement script kit from OTN which is available from the following link:
    http://www.oracle.com/technology/products/bi/db/10g/dw_survey_0206.html
    Please return the script outputs using the link shown on the above web page, see the FAQ section, or alternatively mail them directly to me: [email protected].

    969224 wrote:
    Hi Guys, just a quick question. when we have a primary key on 4 coloumns and we have, say 20 million rows and we want to add one extra row. How does oracle check whether the data on the primary key is unique to the record being added compared to the 20 million rows. Does it actually compare the record being added to all the rows present in the table?
    Edited by: 969224 on May 10, 2013 8:14 AMNot the whole row, it compares the 4 columns in the INDEX against the 4 columns in the new row.

  • Oracle Development Survey: Data Warehouses Customers

    At the start of most data warehouse projects, or even during a project, I am sure you as customers try to find answers to the following questions to help you plan and manage your environments:
    * Where can I find trend and comparison information to help me plan for future growth of my data warehouse?
    * How many cpu's do other customers use per terabyte?
    * How many partitions are typically used in large tables? How many indexes?
    * How much should I allocate for memory for buffer cache?
    * How does my warehouse compare to others of similar and larger scale?
    The data warehouse development team, here at Oracle would like to help provide answers to these questions. However, to do this we need your help. If you have an existing data warehouse environment, we would like to obtain more technical information about your environment(s) by running a simple measurement script and returning the output files to us, here at Oracle. This will allow our developers to provide comprehensive documents that explain best practices and get a better understanding of which features our customers use the most. This will also allow you as Customers, to benchmark your environments compared to other customers’ environments.
    From a Company perspective we are also interested to get feedback on features we have added to the database, are these features used, how are they used etc. For example we are keen to understand:
    * Which initialization parameters are most frequently used at what values?
    * How many Oracle data warehouses run on RAC? on single nodes?
    * Is there a trend one-way or the other, especially as data volumes increase?
    * Does this change with newer releases of the database?
    All results from these scripts will be held confidential. No customers will be mentioned by name; only summaries and trends will be reported (e.g., “X percent of tables are partitioned and Y percent are indexed in data warehouses that are Z terabytes and larger in size.” or “X percent of Oracle9i and Y percent of Oracle10g data warehouses surveyed run RAC”). Results will be written up as a summarized report. Every participating customer will receive a copy of the report.
    Terabyte and larger DW are the primary interest, but information on any data warehouse environment is useful. We would like to have as many customers as possible submit results, ideally by the end of this week. However, this will be an on going process so regular feedback after this week is extremely useful.
    To help our developers and product management team please download and run the DW measurement script kit from OTN which is available from the following link:
    http://www.oracle.com/technology/products/bi/db/10g/dw_survey_0206.html
    Please return the script outputs using the link shown on the above web page, see the FAQ section, or alternatively mail them directly to me: [email protected].
    Thank you and we look forward to your responses.
    Message was edited by:
    klaker

    At the start of most data warehouse projects, or even during a project, I am sure you as customers try to find answers to the following questions to help you plan and manage your environments:
    * Where can I find trend and comparison information to help me plan for future growth of my data warehouse?
    * How many cpu's do other customers use per terabyte?
    * How many partitions are typically used in large tables? How many indexes?
    * How much should I allocate for memory for buffer cache?
    * How does my warehouse compare to others of similar and larger scale?
    The data warehouse development team, here at Oracle would like to help provide answers to these questions. However, to do this we need your help. If you have an existing data warehouse environment, we would like to obtain more technical information about your environment(s) by running a simple measurement script and returning the output files to us, here at Oracle. This will allow our developers to provide comprehensive documents that explain best practices and get a better understanding of which features our customers use the most. This will also allow you as Customers, to benchmark your environments compared to other customers’ environments.
    From a Company perspective we are also interested to get feedback on features we have added to the database, are these features used, how are they used etc. For example we are keen to understand:
    * Which initialization parameters are most frequently used at what values?
    * How many Oracle data warehouses run on RAC? on single nodes?
    * Is there a trend one-way or the other, especially as data volumes increase?
    * Does this change with newer releases of the database?
    All results from these scripts will be held confidential. No customers will be mentioned by name; only summaries and trends will be reported (e.g., “X percent of tables are partitioned and Y percent are indexed in data warehouses that are Z terabytes and larger in size.” or “X percent of Oracle9i and Y percent of Oracle10g data warehouses surveyed run RAC”). Results will be written up as a summarized report. Every participating customer will receive a copy of the report.
    Terabyte and larger DW are the primary interest, but information on any data warehouse environment is useful. We would like to have as many customers as possible submit results, ideally by the end of this week. However, this will be an on going process so regular feedback after this week is extremely useful.
    To help our developers and product management team please download and run the DW measurement script kit from OTN which is available from the following link:
    http://www.oracle.com/technology/products/bi/db/10g/dw_survey_0206.html
    Please return the script outputs using the link shown on the above web page, see the FAQ section, or alternatively mail them directly to me: [email protected].
    Thank you and we look forward to your responses.
    Message was edited by:
    klaker

  • How learn data warehouse technology

    Hi
    I am SQL, PLSQL developer and I wish to progress my carrier into Oracle data warehouse technology. Can anyone advice me from Where I can start. What tools do need to learn? Which books/white papers are good for starter?
    What is Oracle Warehouse Builder and Business Inelegance?
    Thank you in advance
    Adi
    UK

    Check out this Oracle® Database 2 Day + Data Warehousing Guide..............
    http://download.oracle.com/docs/cd/E11882_01/server.112/e10578/toc.htm
    Cheers
    David

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