How a value is to consider the change of dblink to the web service?

Implementation of SOA and OSB, how a value is to consider the change of dblink to the web service?

Where I work, there are a large number of dblink between databases. Some dblinks are intended to be the way to load the immense amount of data while others exist only to simple queries.
I wonder if it might be better to use web services as dblink. In principle, I think that simple queries may be suitable as a web service to improve reuse and governance but I find web service not apropriated for loads of data.
Obviously, the decision is more complex that just think tecnology. Despite this, it will be useful to hear if there are people around the world think about change dblinks to web services the same load so heavy querys with a small amount of data to be trafficked and this as the principles, models or reasons behind this decision.
Basically, we are implementing SOA and OSB and I'm looking for the best I can to rethink the way we used to do it so far. I heard from a friend of mine that we must avoid using dblinks and use only the web services. This seems strange to me because I wonder what level of overloading by the net, that we will face. Could someone give your personal opinion or propose an article? There are some pros and cons, formerly on this review?

966355 wrote:
My question is: wouldn't I tend to turn the worst of communication when I change the dblink in scenario 1 and even more terribly worse in scenario 2?

Yes, this is a drawback... You can't get better performance by adding more load, unless you bring better infrastructure...

One more detail: in scenario 1, there is a high probability to be reused by other systems.

It is one of the beneficial results you have to weight against your disadvantages...

In scenario 2, it is not reused, but we need to audit and traceability of the integrations like this.

This scenario looks more like ETL integration... It's a bulk data loading, you can take a look at ODI - Oracle Data Integrator (ODI is also part of the Fusion Middleware)

In my view, the main issue is to have systems so closely coupled... Systems get older, they get out of support, seller will declare a version is end-of-life, then you need to update. The system vendor has don't might not mind system B accesses its internal tables, but if they decide to change the internal database on the next version, they do... And then you're stuck with the vendor and version...

I hope this helps...

See you soon,.
Vlad

Tags: Fusion Middleware

Similar Questions

  • How to change IP address of the web service proxy.

    Hello

    I created an AppModule and expose as a serviceInterface. I deployed this project in the server and then created the Web service proxy by giving the IP address of the server in WSDL.

    Now I have deployed the same application in different server and manually change the IP address of the proxy Web service methods. But he's still point to the previous server.

    I don't want to regenerate the web service proxy. Is it possible to manually change the IP address in the generated Web proxy service method? Or I have to regenerate their?

    Thank you
    Rohit

    chk
    Configure endpoint URL in WebService DataControl and Proxy

  • change the frequency for the web service

    I'm under LabVIEW Web Service with an application following the method shown in the example of weather monitor. But my problem here is that I have to keep clicking the Refresh button, then the Web Service can only update the latest data for me. Can someone help me to set an example on how to let the page Web of the Web Service automatically update the value without pressing the Refresh button. Thank you

    First of all your customer needs to support it. If you use the HTTP Client in LabVIEW (GET.vi and so on) you cannot use this method. A normal browser should.

    Take a look at the address book example FindContacts.vi.

    The help topic linked in the previous post, you should get on the way as well. The news are scattered throughout the help file, but it should be possible to understand.

    Basically, there are two output options for a web service VI: Terminal mode as used in the example weather and fashion such Stream used in the example address book VI.

    Use stream mode and build the HTML page yourself, then sends it to the browser with Response.vi write. Somewhere in the top of the HTML page, you need to insert

    
    

    If you need to return a string like

    
    my title
    
    
    
    

    If your browser supports Refresh, this page refreshes in 5 seconds. And add some real contents here

    See also W3C .

    Good luck

  • How to consume the web service using PLSQL in 11g

    Hello

    I created a site using jDeveloper, web services which when I put in the web browser and press enter, it will display the settings screen and when I pass the value for the parameter, and then it displays the output of the XML returned by the PL/SQL (called in the Web Service) package. Now, I want to call this webservice in PL/SQL and read XML data and fill in the staging table. Can anyone suggest me how to achieve this functionality by using Oracle PL/SQL

    I use the database 11g and jDeveloper Version :-Studio Edition version 10.1.3.0

    Thank you very much in advance.

    Vijay

    The WSDL file describes the web service.

    To obtain the WSDL, you enter the URL of the web service and add some ? WSDL to the URL. This indicates the web service to return to its definition.

    For example

    URL of the Web Service: http://wsf.cdyne.com/WeatherWS/Weather.asmx

    WSDL URL: http://wsf.cdyne.com/WeatherWS/Weather.asmx?WSDL

    When you read (using 'web browser' UTL_HTTPpackage) the XML response from the web service, read as strings (PL/SQL varchar2, size 32 K max).

    You should read the answer as the strings, then writing/writeappend these channels in a CLOB (using the DBMS_LOB package). If you are VERY sure that the web service call ALWAYS returns an XML of less than 32 k, you can skip using a CLOB.

    Whatever it is, read you the response from the web service in the form of text (such as plain text, it is what is sent). The next step on your part is to parse text into an XML DOM (document object model) - and storing the DOM in an Oracle XmlType variable.

    When in a DOM, you can use Oracle XML functions to extract the attributes and values of the key element of the response from the web service.

  • How to display a PNG image according to the response from the Web Service?

    Hello

    I use the web service XML from Weather.com to get the current temperature, temperature 'feels' and the current condition icon number.  Their service provides many (> 20 I think) which represents the current status of PNG files.  How do I install my script AS3 do basically if... then Else instructions based on the returned value icon?  For example, if the value of icon = 20, then view 20. png on stage?  I need match the value of correct PNG icon and then put that PNG (as a clip?) on stage for a predefined timeline section.

    Thank you

    SID

    Hello

    I also used this API, and I only use cases or conditions in order to retrieve the values and turn them into a file name.

    If you do not use all the available conditions and turning them into an icon, then Yes, you need to do a switch condition.

    But if you want to use them all, them you can simply get the condition number and add the '.png' and call the corresponding file directly. Here you can do a test, just in case the condition / icon does not exist (e.g. system failure any)

    uicondition.source = String (resultXML.cc.icon) + ".png";

    The UILoader is an excellent component for this sort of thing. You can accomplish the same thing with a MovieClip and load an image. It is lighter.

    But then again if you want to resize you would code all methods for that.

    I hope this helps.

  • How to get the response from the web service

    Hello

    My requirement is necessary send the UI ADF input parameter and get web service respone. I created proxy WSDL-based methods. Now in my action button earpiece that I wrote the logic below.

    {} public void submitAction (ActionEvent actionEvent)
    Add the code in the event here...
    BigDecimal merNam = null;
    String number = this.it1.getValue (m:System.NET.SocketAddress.ToString ()); my entry value
    merNam = new BigDecimal (number);
    MV MerchantValidate = new MerchantValidate(); / / created by jdeveloper when proxy generation.
    mv.setMerchantNumber (merNam); / / the value input to the web service
    System.out.println ("merchant number is:" + mv.getMerchantNumber ());

    Mr. MerchantValidateResponse = new MerchantValidateResponse(); / / create object of response class
    String result = mr.getResult (); / / try to get the answer
    System.out.println ("result:" + result); / / I'm getting null as a result
    / * this.setResult (mr.getResult ());
    System.out.println ("the answer is:" + this.getResult ()); * /

    Can someone help how to pass values to the web service and get the response. And how can we get the Web service data control.

    It's very urgent pls help. I'm not for this technology.


    }

    Hello

    You can view the tutorial for a good understanding on creation and use of a Web Service data control:

    http://www.Oracle.com/technology/OBE/obe11jdev/11/wsdc/wsdc.htm#T1

    Thank you
    Vishal

  • Value of clob in wwv_flow_collections of reconciliation after the call to the web service

    After making a call to a web service (created with web service process call assistant), how can I delete the clob001 value in the wwv_flow_collections?

    I created the web service using the [manually create web service tutorial | http://download.oracle.com/docs/cd/E10513_01/doc/appdev.310/e10497/web_serv.htm#CHDEFEGH].

    Thanks in advance,

    Gus...

    Gus,

    You can also remove the collection completely for good measure:

    apex_collection.delete_collection ('MY_COLLECTION_NAME');

    http://download.Oracle.com/docs/CD/E10513_01/doc/AppDev.310/e10499/advnc.htm#BABGGIDG

    Kind regards

    Jason

  • How to create a link on the web to use in an e-mail?

    I don't know how to create a link on the web that I can put in the e-mail addresses. Could you help me please? I know it must be very simple, because thousands of others do regularly. Thank you.

    Katy Anderson

    You can use file-> Send link or copy the web address of the address bar and paste it into an email.

    You are using an older version of Firefox (3.0.7) - you need to update as soon as possible

  • How can I fnd my claim code and the reprint of the web services information sheet

    Hi, I have a HP Deskjet 3520 and try to put in place the eprint.  I read the suggestions on the forum and the FAQ but I can't locate the web services information sheet I need to reprint for claim code.

    Could not find anything under Printer Control Panel either. Please advise!

    Thank you!!

    Hi Chris88,

    Welcome to the HP Support forums.  I appreciate that you try to configure the ePrint on your Deskjet 3520 printer feature.

    If you have the inkjet printer Deskjet 3520 with a C8994 product number this printer does not have the ePrint service.  The Deskjet 3520 printer only has USB connection and ePrint to function the printer must have an independent internet connection through a wireless or a wired ethernet network.  I've included the specifications of the printer for your reference.

    If you have the e-all-in-one printer Deskjet 3520 then we obtain the claim code.  You can request the information sheet of web services from the front panel of the printer, and there the claim code printed in blue. Instructions on how to get it can be found in the section titled "to print a document using ePrint' in your on page 15 user's guide.  Please follow the instructions in step 1.

    HP Deskjet 3520 inkjet printer specifications

    User's Guide e-All-in-One Series HP Deskjet 3520

  • How to call the web service?

    Hello

    I want to know how to call the web service from my application HTML5 & javascript.

    Please help me find this detail as what I can access easily. and I want to access web services online (a method of it) I'm not concered with how background Web service takes place.

    I just want that when you call a web service method, I will return the result.

    Please try this out for a WebService call

    var xmlhttp;
    xmlhttp = new XMLHttpRequest();
    xmlhttp.open("get","your url",true);
    xmlhttp.setRequestHeader("Accept","application/json");
    xmlhttp.setRequestHeader("Content-type", "application/json");
    xmlhttp.onreadystatechange=function() {
     if (xmlhttp.readyState==4) {
      if (xmlhttp.status == 200) {
        console.log(xmlhttp.responseText);
      }
     }
    }
    xmlhttp.send();
    

    This will display the result of the invocation of webservice. The url is the application that you deploy and the type can be get/post. If xmlhttp.send (post) takes argument for the display of the data. You can call it by clicking a button in HTML.

  • How to use the web service to update the data?

    Hi team,

    Need help in establishing a procedure for updating data using the web service, in the first instance, I think that it's the same reading webservice but I will produce an error:

    29273 00000 - "the HTTP request failed.

    * Cause: The UTL_HTTP package cannot run the HTTP request.

    * Action: Use get_detailed_sqlerrm to check the detailed error message.

    Correct the error and restart the HTTP request.

    using this tag soap_request.

    < ns1:Request >

    < ns1:header >

    < ns1:InterfaceName > OSMMVNECreateOrder < / ns1:InterfaceName >

    < ns1:InterfaceId > OSM - XXX < / ns1:InterfaceId >

    < ns1:CorrelationId > TEST-06262015 < / ns1:CorrelationId >

    < / ns1:header >

    < ns1:Mvno > MTI < / ns1:Mvno >

    < ns1:orderId > < / ns1:orderId >

    < ns1:orderType > CHANGE_STATUS < / ns1:orderType >

    < ns1:orderDetails >

    < ns1:subscriberId > 9469273 < / ns1:subscriberId >

    < ns1:newStatusId > 2 < / ns1:newStatusId >

    < / ns1:orderDetails >

    < / ns1:Request >

    the < ns1:subscriberId > 9469273 < / ns1:subscriberId > the Subscriber must search and

    < ns1:newStatusId > 2 < / ns1:newStatusId > will replace the current state.



    any suggestion on how to do it?



    Best regards

    Nelz Ki

    There is no difference between calling a web service to write data, against the appellant for reading data. SOAP is SOAP. He cares not.

    Example to interact with a web service is in Re: PLSQL webservice call

    Regarding your error - stack display Tower full of error to see what said the trace of the error. The data you've posted unfortunately no sense to isolate the error.

  • How to get the IP address of the calling client to the web service built in Jdeveloper 11.1.1.7 application?

    I built an application of web service in Jdeveloper 11.1.1.7 to be used by other clients. Just the General steps as follows (Server web service Application is generated--> deployed on the server-> used by clients with the location of the WSDL file).

    Now, I met a requirement where I need to get the port number and IP address for the client.

    Questions :

    How to get the IP address of the calling client to the web service application generated in Jdeveloper?

    Commune technologies used to build web service applications is AXIS or CXF. What Jdeveloper technology use to built web service application?

    The common technologies used to build web service applications is AXIS or CXF. What Jdeveloper technology allows built web service application?

    It depends on the option selected during the creation of web services (if I remember correctly, there are several options, style J2EE 1.4 RPC style JavaEE JAX - WS 1.5,...)

    For example, to get the ip address of the compatible with jax - ws web service, you need to inject the context in your service class with:

    @Resource
    WebServiceContext wsContext;
    

    and then inside your method:

    MessageContext mc = wsContext.getMessageContext();
    HttpServletRequest req = (HttpServletRequest)mc.get(MessageContext.SERVLET_REQUEST);
    String ip = req.getRemoteAddr();
    

    Dario

  • How can I activate the web service on 8600

    How can I activate the web service on 8600

    How can I activate the web service on hp 8600

  • How can I download it from the Web site that was sent to me?

    How can I download it from the web site that was sent to me by Adobe?

    Thank you for mentioning the name of the Adobe application, you are trying to download.

    If its creative Cloud applications, you can check the link below:

    https://helpx.Adobe.com/creative-cloud/help/download-install-app.html

    All other Apps that had bought you using the serial number such as Photoshop Elements or Lightroom 6... etc? You can check the link below:

    Other downloads

  • How to create a generic method that calls the Web Service

    Hi I have a question how to create the Web Service client. In design mode, I can't specify static URLs? WSDL and process.

    I found the briliant method in library of apache cxf.

    for example

    DCF JaxWsDynamicClientFactory = JaxWsDynamicClientFactory.newInstance ();
    Customer customer = dcf.createClient ("http://soabpm-vm:8001 / soa-infra/services/default/MailSender/mailsender_client_ep?") WSDL");

    Object [] results;
    try {}
    Results = clientA.invoke (QName new ("http://xmlns.oracle.com/SynchDSBpel20/MailSender/MailSender", "process"), '@', 'body', 'subject');
    } catch (Exception e) {}


    In my case, I should create a method with params (URL? WSDL, URI, name of operation, param1, praram2, param3)


    Y at - it something like CXF in the ADF library?

    If your question has been answered, can you please mark as answer?
    THX
    Antonis

Maybe you are looking for

  • MLB Gameday page is cut all the way around. It works very well on Internet Explorer. What's wrong?

    When I access the page to the game, all the content of the page is not displayed. The boxscores are cut at each end and the top and bottom. On IE, the content is allowed to be placed on all of the space on the page and works perfectly.

  • My C70 satellite - C - 11 L will not use the Nvida 930 M

    Hello I have a Toshiba Satellite C70 - C - 11 L half a year ago but I was too lazy to go to support so far.I bought this laptop because of the fairly large plug. But I was a little shocked when I discovered that this laptop is underperforming massive

  • Apple won't let me download iTunes

    Hello When I try to download iTunes 32-bit (this is my system) it asks me to download iTunes 64-bit because my PC is 64-bit. It is not, it is 32-bit. When I try to download 64 bit, Windows just says: "this is not a valid Win32 application". Help?

  • Black Berry 9300 curve

    Impossible to download Skype mobile is compatible

  • HP2210 printer: Hp2210 printer all in one

    I cannot connect my printer to the desktop computer. What I see, he has a place for two phone lines but not usb plug. Looks like that one is to log on to the computer and the phone. Buy the way I have the computer hooked to a wireless net work law do