Top Stories

Lava Kafle


An Introduction to Real-Time Data Integration oracle server service oriented applications SOA download free

An Introduction to Real-Time Data Integration oracle server service oriented applications SOA download free
Being Java-based, these applications run in any Java environment, including Microsoft Windows, Macintosh OS X, and Linux.
In Oracle Data Integrator, a physical database, a service, or an event-based datasource is known as a data server. Using the Topology Manager, you create three new data servers:

1. An Oracle Database data server, set up with the SYSTEM users’ credentials, that maps to the ORDERS and ORDERS_WORKAREA schemas on the database. The ORDERS schema contains the orders data you want to extract, whereas the ORDERS_WORKAREA schema is one you have specially set up, as an empty schema, to hold the working tables Oracle Data Integrator creates. Use the Oracle JDBC driver to make this connection.
2. A File data server that maps to a comma-separated file containing details on employees. Use the Sunopsis File JDBC Driver to make this connection.
3. A Microsoft SQL Server data server that maps to a database called ORDERS_DATA_MART. Use the Sun JDBC-ODBC Bridge JDBC Driver to create this connection, or use the Microsoft JDBC drivers, which you can download from the Microsoft Web site.
Make sure that if the underlying source tables do not have primary keys defined, you define them, by using the Designer application, and have Oracle Data Integrator enforce them “virtually,” because many of Oracle Data Integrator’s mapping features rely on constraints’ being defined

Now that the data stores are defined, you can start setting up the changed-data-capture process that obtains your source data.

Before you do this, though, you import into your project the knowledge module that provides the changed-data-capture functionality. To do this, you click the Projects tab in the Designer application, right-click the project, and choose Import->Import Knowledge Modules. From the list, select the following knowledge modules, which provide changed-data-capture functionality and will be used in other parts of the project.

* IKM SQL Incremental Update
* JKM Oracle 10g Consistent (LOGMINER)
* LKM File to SQL

Now that the required knowledge modules are available, you edit the Oracle module created previously and select the Journalizing tab. Because you want to capture changes to the ORDERS and CUSTOMER tables in a consistent fashion, you select the Consistent option and the JKM Oracle 10g Consistent (LOGMINER) knowledge module. This knowledge module, shown in the figure below, will capture new and changed data, using the LogMiner feature of Oracle Database 10g, and will asynchronously propagate changes across a queue using Oracle Streams.
* Asynchronous Mode: Yes
* Auto-Configuration: Yes
* Journal Table Options: default

Click Apply to save the changes, and then click OK to complete the configuration. You now need to add tables to the changed-data-capture set.

To do this, you locate the Oracle data server in the Designer list of models, right-click the CUSTOMERS and ORDERS tables in turn, and choose Changed Data Capture ->Add to CDC. Then edit the model again the Journalized Tables tab, and use the up and down arrow keys to place the ORDERS table above the CUSTOMERS table.

ou can quickly check which rows are in the table journals by right-clicking the relevant data store, choosing Changed Data Capture and then Journal Data…, or you can execute the interface by opening it again in the editor and clicking Execute at the bottom right corner of the screen. Note that if you have chosen Asynchronous mode for your JKM, there may be a delay of between a second and a few minutes before your journalized data is ready whilst the data is being transferred asynchronously between the source and target databases. If you require your journalized data to be available immediately, choose Synchronous mode instead and your data will be captured and transferred using internal triggers.

Because you have already loaded the initial set of data into your target data mart, using the first interface you created, you now create a Oracle Data Integrator package to carry out the following steps:

1. Check the ORDERS and CUSTOMER journalized data to see if new or changed data records have been added. Once a predefined number of journal records are detected, run the rest of the package or jump to the last step without loading any data.
2. If journalized data is detected, extend the journal window.
3. Execute the interface to read from the journalized data, join it to the file, and load the target data store.
4. Purge the journal window.
5. Start this package again.

Creating this package and then deploying it as an Oracle Data Integrator scenario effectively creates a real-time, continuously running ETL process. Using Oracle Data Integrator’s event detection feature, it will start itself, once a set number of changed data records is detected or after a set number of milliseconds has elapsed. By setting appropriate thresholds for the amount of journalized data and the timeout, you can create a real-time integration process with minimal latency.

To create this package, you navigate to the Projects tab in the Designer application, locate the folder containing the interfaces you defined earlier, find the Packages entry, right-click it, and select Insert Package. You give the package a name and then navigate to the Diagram tab in the package details dialog box.
Because the final OdiStartScen step refers to scenarios, which are productionized versions of packages, you locate the package you are working on in the Project tab of the Designer application, right-click it, and select Generate Scenario. Once the scenario is created, you edit the properties of the OdiStartScen step to reference the scenario name you just generated. By adding this final step to the package, you will ensure that it runs continuously, propagating new and changed data from the Oracle source tables across to the target database in real time.

Oracle Data Integrator, a new addition to the Oracle Fusion Middleware family of products, gives you the ability to perform data, event, and service-oriented integration across a wide number of platforms. It complements Oracle Warehouse Builder and provides a graphical interface for Oracle Database-specific features such as bulk data loading and Oracle Change Data Capture. This article has examined how Oracle Data Integrator can be used to create real-time data integration processes across disparate platforms, and the declarative approach to the integration process allows you to focus on the business rules rather than the details of implementation.
Mark Rittman [] is an Oracle ACE Director and cofounder of Rittman Mead Consulting, a specialist Oracle Partner based in the U.K. focused on Oracle business intelligence and data warehousing. He is a regular contributor to OTN and the OTN Forums and is one of the authors of the Oracle Press book Oracle Business Intelligence Suite Developers’ Guide, forthcoming in 2008.
Oracle Data Integrator Product Architecture

Oracle Data Integrator is organized around a modular repository that is accessed by Java graphical modules and scheduling agents. The graphical modules are used to design and build the integration process, with agents being used to schedule and coordinate the integration task. When Oracle Data Integrator projects are moved into production, data stewards can use the Web-based Metadata Navigator application to report on metadata in the repository. Out-of-the-box Knowledge Modules extract and load data across heterogeneous platforms, using platform-specific code and utilities.
In these days of complex, “hot-pluggable” systems and service-oriented architecture (SOA), bringing data together and making sense of it becomes increasingly difficult. Although your primary applications database might run on Oracle Database, you may well have other, smaller systems running on databases and platforms supplied by other vendors. Your applications themselves may intercommunicate by using technologies such as Web services, and your applications and data may be hosted remotely as well as managed by you in your corporate data center.
Four graphical modules are used to create and manage Oracle Data Integrator projects:

* Designer is used to define data stores (tables, files, Web services, and so on), interfaces (data mappings), and packages (sets of integration steps, including interfaces).
* Topology Manager is used to create and manage connections to datasources and agents and is usually restricted so that only administrators have access.
* Operator is used to view and manage production integration jobs.
* Security Manager manages users and their repository privileges.
n general, a data integration task consists of two key areas:

* The business rules about what bit of data is transformed and combined with other bits
* The technical specifics of how the data is actually extracted, loaded, and so on

This split in focus means that often the best people to define the business rules are an organization’s technical business or data experts, whereas the technical specifics are often better left to technical staff such as developers and DBAs. With most data integration tools, it is often difficult to split responsibilities in this way, because their data mapping features mix up business rules and technical implementation details in the same data mapping. Oracle Data Integrator takes a different approach, though, and, like SQL, uses a declarative approach to building data mappings, which are referred to within the tool as “interfaces.”

When creating a new interface, the developer or technical business user first defines which data is integrated and which business rules should be used. In this step, tables are joined, filters are applied, and SQL expressions are used to transform data. The particular dialect of SQL that is used is determined by the database platform on which the code is executed.

Then, in a separate step, technical staff can choose the most efficient way to extract, combine, and then integrate this data, using database-specific tools and design techniques such as incremental loads, bulk-loading utilities, slowly changing dimensions, and changed-data capture.

Extensible Knowledge Modules

As Oracle Data Integrator loads and transforms data from many different database platforms and uses message-based technologies such as Web services while being able to respond to events, the technology used to access and load these different datasources needs to be flexible, extensible, and yet efficient. Oracle Data Integrator solves this problem through the use of knowledge modules.
Another useful technique for minimizing data load times is to load only data that is new or has changed. If you are lucky, the designers of your applications have helpfully provided indicators and dates to identify data that is new or changed, but in most cases, this information is not available and it is up to you to identify the data you are interested in.

Because this is a fairly common requirement, Oracle Data Integrator provides journalizing knowledge modules that monitor source databases and copy new and changed records into a journal, which can then be read from instead of the original source table. Where database vendors such as Oracle provide native support for changed-data capture, these features are used; otherwise, the journalize knowledge module uses techniques such as triggers to capture data manipulation language (DML) activity and make the changes available. Later in this article, you will see how support for the Oracle Change Data Capture feature is provided by Oracle Data Integrator and how it can be used to incrementally load, in real time, a database on a different database platform.
Oracle Data Integrator in Relation to Oracle Warehouse Builder

At this point, regular users of Oracle Warehouse Builder are probably wondering how Oracle Data Integrator relates to it and how it fits into the rest of the Oracle data warehousing technology stack. The answer is that Oracle Data Integrator is a tool that’s complementary to Oracle Warehouse Builder and can be particularly useful when the work involved in creating the staging and integration layers in your Oracle data warehouse is nontrivial or involves SOA or non-Oracle database sources.

For those who are building an Oracle data warehouse, Oracle Warehouse Builder has a strong set of Oracle-specific data warehousing features such as support for modeling of relational and multidimensional data structures, integration with Oracle Business Intelligence Discoverer, support for loading slowly changing dimensions, and a data profiler for understanding the structure and semantics of your data.
Oracle Data Integrator in Use: Cross-Platform Real-Time Data Integration

In this scenario, you have been tasked with taking some orders and customer data from an Oracle database, combining it with some employee data held in a file, and then loading the integrated data into a Microsoft SQL Server 2000 database. Because orders need to be analyzed as they arrive, you want to pass these through to the target database in as close to real time as possible and extract only the new and changed data to keep the workload as small as possible. You have read about Oracle Data Integrator on the Oracle Technology Network and want to use this new tool to extract and load your data.

45 thoughts on “An Introduction to Real-Time Data Integration oracle server service oriented applications SOA download free

  1. I in addition to my pals were actually digesting the excellent strategies located on your web page and at once I had an awful suspicion I never expressed respect to the site owner for those techniques. My guys ended up as a result thrilled to see all of them and have in effect simply been taking advantage of them. Many thanks for truly being so accommodating and also for picking out variety of high-quality subject areas most people are really needing to understand about. My personal honest apologies for not saying thanks to earlier.

  2. There are some fascinating closing dates on this article however I don’t know if I see all of them middle to heart. There is some validity but I will take hold opinion until I look into it further. Good article , thanks and we want more! Added to FeedBurner as nicely

  3. obviously like your web site but you have to test the spelling on quite a few of your posts. Several of them are rife with spelling problems and I find it very bothersome to tell the truth on the other hand I will surely come again again.

  4. I would like to thnkx for the efforts you’ve put in writing this web site. I’m hoping the same high-grade blog post from you in the upcoming as well. In fact your creative writing abilities has inspired me to get my own web site now. Actually the blogging is spreading its wings rapidly. Your write up is a good example of it.

  5. I am very happy to read this. This is the type of manual that needs to be given and not the random misinformation that is at the other blogs. Appreciate your sharing this greatest doc.

  6. I like what you guys are up too. Such smart work and reporting! Keep up the excellent works guys I have incorporated you guys to my blogroll. I think it’ll improve the value of my site :).

  7. Hello there, just became alert to your weblog thru Google, and found that it’s really informative. I am gonna watch out for brussels. I will be grateful if you happen to proceed this in future. A lot of folks might be benefited from your writing. Cheers!

  8. This web site is known as a stroll-through for all of the information you wished about this and didn’t know who to ask. Glimpse here, and you’ll undoubtedly uncover it.

  9. I have been exploring for a little for any high-quality articles or blog posts on this sort of area . Exploring in Yahoo I at last stumbled upon this site. Reading this information So i’m happy to convey that I have a very good uncanny feeling I discovered just what I needed. I most certainly will make certain to don’t forget this website and give it a look regularly.

  10. Thanks so much for giving everyone remarkably marvellous possiblity to read from this website. It really is so useful and also packed with a good time for me and my office mates to visit the blog more than three times every week to find out the latest guides you will have. And lastly, I am usually contented with the impressive methods you give. Selected 4 facts on this page are without a doubt the finest we have all had.

  11. This is really attention-grabbing, You are a very professional blogger. I have joined your rss feed and sit up for seeking extra of your wonderful post. Additionally, I’ve shared your website in my social networks!

  12. I have seen plenty of useful factors on your internet site about personal computers. However, I have got the impression that notebooks are still not quite powerful sufficiently to be a good choice if you typically do projects that require a lot of power, such as video croping and editing. But for web surfing, microsoft word processing, and most other frequent computer functions they are just great, provided you may not mind small screen size. Many thanks for sharing your ideas.

  13. Hi there, I found your site via Google while searching for a related matter, your site got here up, it appears to be like great. I’ve bookmarked it in my google bookmarks.

  14. I was just looking for this info for a while. After 6 hours of continuous Googleing, at last I got it in your web site. I wonder what is the lack of Google strategy that don’t rank this type of informative websites in top of the list. Generally the top web sites are full of garbage.

  15. I’ve observed that in the world these days, video games would be the latest fad with kids of all ages. There are times when it may be impossible to drag your family away from the video games. If you want the very best of both worlds, there are many educational gaming activities for kids. Thanks for your post.

  16. Wonderful blog! I found it while surfing around on Yahoo News. Do you have any suggestions on how to get listed in Yahoo News? I’ve been trying for a while but I never seem to get there! Appreciate it

  17. Good – I should definitely pronounce, impressed with your website. I had no trouble navigating through all tabs and related information ended up being truly easy to do to access. I recently found what I hoped for before you know it at all. Quite unusual. Is likely to appreciate it for those who add forums or something, site theme . a tones way for your client to communicate. Nice task.

  18. you’re truly a excellent webmaster. The website loading speed is incredible. It seems that you are doing any unique trick. In addition, The contents are masterwork. you’ve done a magnificent task in this matter!

  19. Unquestionably believe that which you stated. Your favorite reason appeared to be on the web the easiest thing to be aware of. I say to you, I definitely get irked while people think about worries that they plainly don’t know about. You managed to hit the nail upon the top as well as defined out the whole thing without having side effect , people could take a signal. Will probably be back to get more. Thanks

  20. you are really a good webmaster. The web site loading velocity is amazing. It sort of feels that you are doing any distinctive trick. Furthermore, The contents are masterwork. you’ve performed a magnificent activity in this matter!

  21. Thank you for the sensible critique. Me & my neighbor were just preparing to do some research about this. We got a grab a book from our area library but I think I learned more from this post. I am very glad to see such excellent info being shared freely out there.

  22. Excellent read, I just passed this onto a friend who was doing some research on that. And he just bought me lunch because I found it for him smile Thus let me rephrase that: Thanks for lunch! “Do you want my one-word secret of happiness–it’s growth–mental, financial, you name it.” by Harold S. Geneen.

  23. hello!,I like your writing so so much! percentage we keep in touch extra about your post on AOL? I need an expert in this area to resolve my problem. May be that is you! Taking a look forward to peer you.

  24. I’m impressed, I need to say. Really hardly ever do I encounter a weblog that’s each educative and entertaining, and let me let you know, you will have hit the nail on the head. Your thought is outstanding; the difficulty is something that not enough persons are talking intelligently about. I am very comfortable that I stumbled across this in my seek for one thing referring to this.

  25. Hi there. I found your web site by means of Google even as looking for a related topic, your web site came up. It seems to be good. I’ve bookmarked it in my google bookmarks to come back then.

  26. I have to express my appreciation for your generosity in support of men who require guidance on this one matter. Your very own commitment to getting the message up and down appears to be quite practical and has continually allowed professionals much like me to achieve their aims. Your warm and helpful tips and hints signifies a whole lot to me and especially to my peers. Thanks a ton; from all of us.

  27. Kurye olarak hizmet veren kişiler, bulundukları lokasyondaki her adrese en kısa sürede ulaşma yolunu bilirler. Üstelik verilen bu görevi hava, trafik ve buna benzer diğer olumsuz şartlardan etkilenmeden yerine getirirler. Yani iş hayatı başta olmak üzere hayatın hemen her alanında önemli görevleri üstlenebilir ve başarıyla yerine getirebilirler. Özellikle büyük şehirlerdeki trafik kaosu ve adres konusundaki karmaşa göze alınırsa, kurye hizmetlerinden faydalanmanın bazı durumlarda zorunlu hale geleceği anlaşılabilir. Örneğin İstanbul’un bir noktasından diğer bir noktasına acil şekilde önemli bir evrak ulaştırmak gerektiğinde ya da hastanızın ihtiyacı olan ilacı acil ve güvenli bir şekilde ulaştırmak gerektiğinde, İstanbul moto kurye hizmetimizden faydalanarak sorununuza çözüm üretebilirsiniz.

  28. I just want to tell you that I am newbie to weblog and absolutely liked you’re website. Probably I’m want to bookmark your blog . You surely have good well written articles. Thank you for revealing your website.

Leave a Reply

Your email address will not be published. Required fields are marked *