Need Expert Advice regarding oracle and java objects
In our project, we are submitting data for many screens at a time. Some screens will have a list of records to be submitted. There is also some hierarchy among the data up to 4 levels.
In such a scenario, we need to know the best way to exchange data between Oracle and Java. Currently java holds the data as objects, where each object may contain an array of next level of objects in it.
Is it best approach to pass the entire data with hierarchy to Oracle using nested table approach and internally oracle handling the data? Is there any other way to do this?
Also in some scenarios we need to pass the entire information for all the screens in one shot with the hierarchy. So we need to know a solution for that also. Could you please help us in this regard?
See Oracle JPublisher technique to map Oracle object types to Java ones:
http://download-west.oracle.com/docs/cd/B10501_01/java.920/a96658/toc.htm
Rgds
Similar Messages
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Need expert advice on Ram and CPU Speed
I have read places that your Ram and CPU FSB speed should be the same to increase performance. However, I can no longer find them anymore. Now, I just want to make sure.
I currently have PC2700 (333Mhz) ram, but my processor is a AMD 2000+XP at 266 FSB. Should I run my ram at 266 Mhz instead of 333 for a 1:1 ratio?
What do the experts think?
Thanks everyone!http://qube.kylning.net/forum/attachment.php?s=&postid=23897
If there is no picture cut and paste this into your browser
Thats my rig water cooled thats the best for OCing (overclocking)
But if you don't have the cash there are some good air cooled alternitaves.
I bought a Jet 7 blower made by coolmaster
http://www.coolermaster.com/index.php?
LT=english&Language_s=2&url_place=product&p_serial=ACB-V83&other_title=ACB-V83JET%20[/URL]
Then I bought a SLK-800 heatsink http://www.thermalright.com/ and pulled the Jet 7 apart and then mounted the blower on to the heatsink quite easy only 4 screws to take out and put in.
That was quite good you could try
http://www.thermaltake.com Tt SILENT BOOST 21dB Cheep for cooling (3400+ Although I have never seen or heard of a 3400+)
Check out this website they have loads of good quality gear for not a bad price The only problem is it's in Swden but I think he ships over seas his site is in english and swedish I buy all my stuff there
http://kylning.com/index.php?cPath=82_87
http://www.kyling.com click on the english flag to get the menus in english
let me know how it's going -
Need expert advice to import and convert video using Windows COM SDK
Hi,
Does anybody know can I import a video file and convert the footage to iPod compatible format using vbscript?
I found a COM function 'convertfile', but it seems only work with audio and doesn't work with mpg files. Does the current version of COM SDK 6.0.2.23 support conversion of mpg?
Set iTunesApp = WScript.CreateObject("iTunes.Application")
Status = iTunesApp.ConvertFile("m:\test.mpg")
Thanks in advance.
Intel Windows XP ProThanks, but I know iTunes 6 (windows version) has a built-in function to convert a video to a format for iPod G5. That's why I wonder if the iTunes Windows COM SDK has the function call so that I can automatically import my scheduled recording to iPod. I think that's the advantage of iTunes / iPod. Actually I love my iPod G3 and iPod mini, but I don't see a reason for me to upgrade to G5 if it only accept H264 and mp4 because all my recordings (directly from my TV card) are only mpeg format and there is currently no command line tools to convert them for iPod. I know a bit of programming and it is much more conveninent to use scripts to do the mpg -> ipod conversion automatically than doing it manually using GUI programs..
Thanks -
Session/jstl and load balancing - need expert advice
After user loggs in, I am getting locale from db and storing it inside userSession along with userLogin. Inside jsp using <fmt> tag to display locale based resource property.
HttpSession userSession = request.getSession(true);
userSession.setAttribute("UserLogin", oRS.getString("user_login"));
Config.set(userSession, Config.FMT_LOCALE, currentLocale);Also using filter after login page to check for User Session. Currently all working fine .
But if i want to make use of load balancing, whether still it will work?
1)I understand that if i depend on network config i.e. session request sticks to one server then i believe shld not be a problem
2)But if that is not the choice then what else ? Client want to make use of serialization technique. I do not know much about it, how to implement it, any sample is greatly appreciated.
3)what about jstl Config.set(..) whether any changes needed here?
4)Do i need to change filter code.
Pls pls help me, i really need expert advice on this.
regards
Manisha1)If i want cluster server to replicate the session
then all attributes saved in the session have to be
serializable.yes.
2)In docs it is mentioned
Use setAttribute to Change Session State
In an HTTP servlet that implements
javax.servlet.http.HttpSession, use
HttpSession.setAttribute (which replaces the
deprecated putValue) to change attributes in a
session object. If you set attributes in a session
object with setAttribute, the object and its
attributes are replicated in a cluster using
in-memory replication. If you use other set methods
to change objects within a session, WebLogic Server
does not replicate those changes. Every time a change
is made to an object that is in the session,
setAttribute() should be called to update that object
across the cluster.
Whether it means that if I want to store a object
(which is serializable) e.g. 'String' inside session
and use setAttribute() method then I do not need to
make that object implicitly serializable?No, you still need the objects to be serializable. -
Need expert advice on buying new macbook pro 15 inch
Hi I Am a digital textile designer and planning to buy my first retina macbook pro. I need expert advice, which model should i buy 15 inch base model or with dedicated graphics card. i will use macbook for digital designing on Adobe photoshop and multi tasking. so now really confused is intel iris pro graphics will handle heavy files on photoshop or Nvidia GT750 m will good for heavy work. I am working on very large resolution file like 10 to 15k in resolution approx 1 GB in file size with lot of filters is being use while designing. Which model will handle above task well and last longer.
Look at the specifications here:
http://store.apple.com/us/buy-mac/macbook-pro
You may be confusing the quad core CPU with the Graphics processor.
It should have no difficulty in running Adobe Photoshop.
Ciao. -
I used Sql Server and .Net for developing application to now. I switch to Oracle and Java recently. I have installed Oracle 11g. What I need to start developing aoolication with Java and Oracle?
Has Oracle a graphical interface like MS Sql Server? how can I install them? What Developing Environment You suggest for Java? I am familiar with eclipse.user987274 wrote:
I used Sql Server and .Net for developing application to now. Which means 1 year or 5?
I switch to Oracle and Java recently. I have installed Oracle 11g. What I need to start developing aoolication with Java and Oracle? Starting basics.
1. Learn basics of java
2. Learn basics of Oracle
3. Learn JDBC which allows you to code in java and talk to Oracle.
Do not attempt step 3 until you have complete 1 and 2.
Has Oracle a graphical interface like MS Sql Server? That would be a Oracle question rather than a java question. There are other forums on this site specific to Oracle.
Myself I just use sqlplus.
how can I install them? Huh? Just like you install anything else.
1. Acquire appropriate software
2. Read documentation
3. Install
4. Look for post install options that might be relevant.
What Developing Environment You suggest for Java? I am familiar with eclipse.I presume that you mean that you know eclipse exists for java rather than that you have used it before.
Since you are probably used to using Visual Studio, then you probably want an IDE. Eclipse will suffice for that. -
Explicity mapping between ActionScript and Java objects for the BlazeDS Messaging Service
The BlazeDS documentation shows how to explicitly map between ActionScript and Java objects. For example, this works fine for RPC services, e.g.
import flash.utils.IExternalizable;
import flash.utils.IDataInput;
import flash.utils.IDataOutput;
[Bindable]
[RemoteClass(alias="javaclass.User")]
public class User implements IExternalizable {
public var id : String;
public var secret : String;
public function User() {
public function readExternal(input : IDataInput) : void {
id = input.readObject() as String;
public function writeExternal(output : IDataOutput) : void {
output.writeObject(id);
and
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
public class User implements Externalizable {
protected String id;
protected String secret;
public String getId() {
return id;
public void setId(String id) {
this.id = id;
public String getSecret() {
return secret;
public void setSecret(String secret) {
this.secret = secret;
public void readExternal(ObjectInput in) throws IOException,
ClassNotFoundException {
id = (String) in.readObject();
public void writeExternal(ObjectOutput out) throws IOException {
out.writeObject(id);
If I called an RPC service that returns a User, the secret is not sent over the wire. Is it also possible to do this for the messaging service? That is, if I create a custom messaging adapter and use the function below, can I also prevent secret from being sent?
MessageBroker messageBroker = MessageBroker.getMessageBroker(null);
AsyncMessage message = new AsyncMessage();
message.setDestination("MyMessagingService");
message.setClientId(UUIDUtils.createUUID());
message.setMessageId(UUIDUtils.createUUID());
User user = new User();
user.setId("id");
user.setSecret("secret");
message.setBody(user);
messageBroker.routeMessageToService(message, null);Hi Martin. The way that AMF serialization/deserialization works for BlazeDS is the same regardless of which service is being used, so yes that code will work for messaging as well. On the server, the serialization/deserialization of messages happens at the endpoint. For an incoming message for example, the endpoint deserializes the message and then hands it off to the MessageBroker which decides which service/destination to deliver the message to.
That was a good question. Thanks for asking it. Lots of people are used to doing custom serialization/deserialization with the RPC services (RemoteObject/RemotingService) but I'm not sure everyone realizes they can do this for messaging as well.
-Alex -
Please, can you explain me the link between oracle and java.
The link b/w oracle and java is through
driver.
Driver name :JDBC -
Need Experts Advice (EP, ABAP, Java etc)
I am having almost 3 years exp in SAP (ABAP-3 months, EP Testing + Dev-2.5) .Now i am bit confused about my career path beacuse I have got EP testing exp and not development and also I am almost new to Java Programming
I will be so thankful if experts can give me their valuable advice.
1. Shall I continue learning EP Development as I rarely see EP Projects and jobs in India and abroad?
2. Which module/component will be the good combination with EP (PI, BI etc)
Apart from answering these questions, if you have any addition advice then do share with me.
Thanks in Advance!
Points are assured for advice!
Thanks and Regards,
AjayAs you already know ABAP. My suggestion is learn OABAP and webdynpro for ABAP because future busness packages are coming in webdynpro ABAP, you have good future.
Of course learning java is also good
Raghu -
Need an advice in Oracle Application Server
Dear all,
I need your advice.....
What I have:
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- Oracle 11g Database installed in a server
- forms (.fmx) , reports (.rdf) , compiled using Oracle 10g DS R2
- Oracle 10g Developer Suit R2
What I want:
- Install Oracle Application Server in the 2 servers available (Windows 2008 R2)
- make sure all (.fmx & .rdf) will work im these 2 servers
- take advantage of the powerful servers
What I did:
- Install Oracle 10g AS R2 in both servers
- configure webcache balance
What I faced:
- both servers worked fine except:
- (.fmx) files cannot be cached
- slow while opening (.fmx) files
- AGAIN, SLOW
ADVICE??
- Do I need to continue using this installation OR
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Kind RegardsHi zzalabri,
I know i have replied it late,
Oracle Web Cache uses cacheability rules to store documents. These rules fall into two categories:
1)Rules for static content, such as GIF, JPEG, or static HTML files
2)Rules for dynamically generated content created using technologies like Java Server Pages (JSP), Active Server Pages (ASP), PL/SQL Server Pages (PSP), Java Servlets, and Common Gateway Interface (CGI).
How can I make my server caches .fmx files using webcache (( webcache is configured already but it says "URL contains query string"))..
The below link would be helpful for setting caching rules for Oracle Webcache
http://docs.oracle.com/cd/B15904_01/caching.1012/b14046/cache.htm
Is there any configuration for Application Server 10g R2 AFTER the fresh installation OR it works as it is ..
The default installation is self tuned to handle a load of approximately 200 users(it depends on network as well as ur DB)
I knew for sure what makes my server slow, that is because of background images in fmb & fmx files. when I removed them it became fast enough.
In my environment,i used to staore all this images in gif format(images size max would be 50kb)then store all these images in a jar file and load this jar file through archive_jini(Formsweb.cfg)
Hope this would be helpful,
Regards
Fabian -
Need Expert advice on choosing Source System for creating/maint Customers.
Hi Experts,
Iam on project where we have CRM,ECC(SD),FICA in the System Landscape.The client is currently using ECC(SD) Customer master for creating/maintainig Customer's.As we have CRM & FICA in this implementation, we are planning to propose that we use CRM as the source system for creating/maintaing Customers as Business Partners & Perform standard replication to the other system's in the landscape.
The client has has asked us to confirm if having CRM as the source is the Best practice in the industry when we have this three systems (CRM,FICA,ECC(SD)) Landscape.I thought to get some expert advice on this & see if any of you have a similar project experience & share some views on this CRM BP vs ECC(SD) Customer Master.
Thanks in advance!
Regards,
NaveenHi,
I believe it depends on your business senario.Here I can share some my experience for you.
CRM As Source System
Advantage:
1) Choosing CRM as source system ,you can create several roles of customer for tracking the presales process of customer，such as prospect ,sold to party ,customers ,also you can define the life cycle of your customer and control which life cycle of customer should be replicated to ECC and which one should not.
2) CRM can have more views of customer and customer defined field (EEWB fields) ,so if you choose CRM as Source it will be more convenient to create and fill in the all your user defined field .In other words ,choosing ECC as source you have to extend these field again in CRM .
3） easy to maintain customer relationship
Disadvantages：
1） Have to extend Company code view of Customer data, since CRM do not have these view ,it is just used for billing and integration with financial accounts.
2） have to extend some particular partner function of customer ,it is because of CRM it is only possible to create part of partner function automatically like SP ,BP when business partner is replicating to ECC.
ECC As the source
Oppositely， if you choose ECC as the source ,the advantage become disadvantage.
Advantage :
1) Can Easily to create customer's data of company code view
2) Can easily to assign any partner function to customer
To conclude， if you only need to create sales order in ECC ，I believe choosing ECC as Lead system is better, since you do not have to extend customer data and easily to integrate with FICO and SD.Howerver, if you are going to create a sales order from opportunity or quotation ,CRM is your best choice.
Regards ,Edward -
Need urgent help regarding oracle 8.0
Hi Guys!!
This is vishal, and i am working as an oracle developer.
I would appreciate your help if you could help me solving the below
issue :
Right now the database on which we are running our applications is
8.0 version. We have oracle App server on which all of these j2ee
applications are running.
basically our client is trying to move large amount of data to a
new database probably 10G, so my job is to analyse the code and
do some modifications to the code, give them a solution to upgrade
it to 10g
There are like 10 applications running on oracle app server and the
database has many old tables, and they need a suggestion regarding
this upgradation/migration.
And i specifically want to know about the problems faced during the
upgradation, and how exactly is the upgradation done(step -by -step
procedure), because i also have to take care of the data which
has been stored from many years.
thanks,
VishalI find these informations in the Upgrade Guide (upgrading of database and of application programs):
http://download.oracle.com/docs/cd/B19306_01/server.102/b14238/toc.htm
Note: direct upgrade from 8.0 to 10g is not supported using tools like DBUA (Database Upgrade Assistant).
Werner -
I need to map java objects with XMl Node or XML Elements.
My java objets get some attributes, for instance name,color ...
and i need an output like:
<OBJECT_OF_TYPE_XXX>
<NAME>scott</NAME>
<COLOR>red</COLOR>
</OBJECT_OF_TYPE_XXX>
Any idea?
Thanks
MauriceYou can try JAXB which includes a compiler that generates classes based on the XML Schema for your xml structure. It also features the possibility to convert between xml and the generated objects.
Take a look at chapter 9 and 10 at http://java.sun.com/webservices/docs/1.1/tutorial/doc/index.html -
Question regarding Oracle and Linux on VMware
Hello,
I carefuly read the paper on Oracle and Linux on Your Own VMware and I'm missing a point.
The paper explains how to start a cluster on a single host in a single Linux VM on VMware.
So, there are 2 instances of Oracle 10g DB on the same Linux VM inside VMware. What does allow that?
Is it possible to run 2 instances on any (single) Linux box, or is VMware required? If VMware is not required, why this complication in that paper? If VMware is required, what does it bring that make running 2 cluster instances on the same host possible?
Many thanks for your help.userLynx wrote:
I have an oracle database (10.2) and I have a query that needs to compare data on the Oracle database to data on a MS SQL server DB. I'm using a DB Link between the two databases.
How would I compare the date fields?
I have a table that has a date as one of the fields and I need to restrict the records where the date is equal to the date on SQL, however the formats are different:
My query is as follows:
SELECT mkt_css_name,
pmv_rqst_corp_id,
pmv_rqst_source,
'G',
pmv_css_acct_no,
eq.start_date
FROM power_move@cmdt,
enroll_que@tcis eq,
marketer@cmdt
WHERE eq.css_account_number = pmv_css_acct_no
AND eq.requestor_type = 'P'
AND eq.status IN ('A','P','G','S')
AND eq.marketer_id = mkt_seq_no
AND pmv_service_type IN ('G','D')
And Pmv_Gas_Mktr_No = Eq.Marketer_Id
AND pmv_received_timestamp= eq.enroll_date ;
The problem is that the date is stored in Oracle in the following format: DD-MON-YYYY and in SQL as 'YYYY-DD-MM HH:MI:SSSSSS'
for example: Data in Oracle would be 27-JAN-2012 and in SQL as 2012-01-27 00:00:00.000
I get an error when I compile.
How do you reconcile the formats when the syntax is different between databases?
Thanks, SeanDATE datatypes do NOT have any "format"
DATE datatype is stored in internal binary notation.
use TO_CHAR to display, present & compare the DATE datatypes -
Help regarding ABAP and ABAP Objects
Dear all,
I am very new in abap and abap objects. But i have some expr. in other language..specialy development. Right now i am working for srm module...So i want to move my self into abap object and specialy in workflow...Please provide me help regarding this...along with the starting point for this.
Best Regards
Vijay Patilhi
Object Oriented prg
A programming technique in which solutions reflect real world objects
What are objects ?
An object is an instantiation of a class. E.g. If Animal is a class, A cat
can be an object of that class .
With respect to code, Object refers to a set of services ( methods /
attributes ) and can contain data
What are classes ?
A class defines the properties of an object. A class can be instantiated
as many number of times
Advantages of Object Orientated approach
Easier to understand when the system is complex
Easy to make changes
Encapsulation - Can restrict the visibility of the data ( Restrict the access to the data )
Polymorphism - Identically named methods behave differently in different classes
Inheritance - You can use an existing class to define a new class
Polymorphism and inheritance lead to code reuse
Have a look at these good links for OO ABAP-
http://www.sapgenie.com/abap/OO/
http://www.sapgenie.com/abap/OO/index.htm
http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b5654f411d194a60000e8353423/content.htm
http://www.esnips.com/doc/375fff1b-5a62-444d-8ec1-55508c308b17/prefinalppt.ppt
http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
http://www.esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt
http://www.allsaplinks.com/
http://www.sap-img.com/
http://www.sapgenie.com/
http://help.sap.com
http://www.sapgenie.com/abap/OO/
http://www.sapgenie.com.
http://www.sapgenie.com/abap/OO/index.htm
http://www.sapgenie.com/abap/controls/index.htm
http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
http://www.esnips.com/doc/0ef39d4b-586a-4637-abbb-e4f69d2d9307/SAP-CONTROLS-WORKSHOP.pdf
http://www.sapgenie.com/abap/OO/index.htm
http://help.sap.com/saphelp_erp2005/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm
http://www.sapgenie.com/abap/OO/
check the below links lot of info and examples r there
http://www.sapgenie.com/abap/OO/index.htm
http://www.geocities.com/victorav15/sapr3/abap_ood.html
http://www.brabandt.de/html/abap_oo.html
Check this cool weblog:
/people/thomas.jung3/blog/2004/12/08/abap-persistent-classes-coding-without-sql
/people/thomas.jung3/blog/2004/12/08/abap-persistent-classes-coding-without-sql
http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b6254f411d194a60000e8353423/frameset.htm
http://www.sapgenie.com/abap/OO/
http://www.sapgenie.com/abap/OO/index.htm
http://help.sap.com/saphelp_nw04/helpdata/en/c3/225b5654f411d194a60000e8353423/content.htm
http://www.esnips.com/doc/375fff1b-5a62-444d-8ec1-55508c308b17/prefinalppt.ppt
http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
http://www.esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt
http://www.allsaplinks.com/
http://www.sap-img.com/
http://www.sapgenie.com/
http://help.sap.com
http://www.sapgenie.com/abap/OO/
http://www.sapgenie.com/abap/OO/index.htm
http://www.sapgenie.com/abap/controls/index.htm
http://www.esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
http://www.esnips.com/doc/0ef39d4b-586a-4637-abbb-e4f69d2d9307/SAP-CONTROLS-WORKSHOP.pdf
http://www.sapgenie.com/abap/OO/index.htm
http://help.sap.com/saphelp_erp2005/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm
http://www.sapgenie.com/abap/OO/
these links
http://help.sap.com/saphelp_47x200/helpdata/en/ce/b518b6513611d194a50000e8353423/content.htm
For funtion module to class
http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b5954f411d194a60000e8353423/content.htm
for classes
http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b5c54f411d194a60000e8353423/content.htm
for methods
http://help.sap.com/saphelp_47x200/helpdata/en/08/d27c03b81011d194f60000e8353423/content.htm
for inheritance
http://help.sap.com/saphelp_47x200/helpdata/en/dd/4049c40f4611d3b9380000e8353423/content.htm
for interfaces
http://help.sap.com/saphelp_47x200/helpdata/en/c3/225b6254f411d194a60000e8353423/content.htm
For Materials:
1) http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCABA/BCABA.pdf -- Page no: 1291
2) http://esnips.com/doc/5c65b0dd-eddf-4512-8e32-ecd26735f0f2/prefinalppt.ppt
3) http://esnips.com/doc/2c76dc57-e74a-4539-a20e-29383317e804/OO-abap.pdf
4) http://esnips.com/doc/0ef39d4b-586a-4637-abbb-e4f69d2d9307/SAP-CONTROLS-WORKSHOP.pdf
5) http://esnips.com/doc/92be4457-1b6e-4061-92e5-8e4b3a6e3239/Object-Oriented-ABAP.ppt
6) http://esnips.com/doc/448e8302-68b1-4046-9fef-8fa8808caee0/abap-objects-by-helen.pdf
7) http://esnips.com/doc/39fdc647-1aed-4b40-a476-4d3042b6ec28/class_builder.ppt
8) http://www.amazon.com/gp/explorer/0201750805/2/ref=pd_lpo_ase/102-9378020-8749710?ie=UTF8
1) http://www.erpgenie.com/sap/abap/OO/index.htm
2) http://help.sap.com/saphelp_nw04/helpdata/en/ce/b518b6513611d194a50000e8353423/frameset.htm
Hope this helps
if it helped, you can acknowledge the same by rewarding
regards
ankit
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