Nw2004s Java - IBM SDK - How to fine tune

Hello,
Can you anyone let me know about tunning IBM SDK parameters on Linux using configtool ?
We have already set some parameters as per SAP Note for IBM SDK.
Still not sure, how to set the following in the configtool
1. HeapDumppath
2. HeapDumpon CtrlBreak
If I XX:HeapDumpPath=/usr/sap/dumps , JVM is not starting. The same setting Sun JAVA JDK on Solaris is working fine.
I believe the syntax is different for IBM SDK than Sun JDK.
Thanks in Advance for your help !
kandy

Hi,
Please check the following SAP Notes:
Note 1004255 - How to create a full HPROF heap dump of J2EE Engine 6.40/7.0
Note 1053495 - Settings to get a heapdump with IBM JVM on AIX
Note 710146 - How to change J2EE Engine JVM Settings
Hope That helps.
Regards,
Siddhesh

Similar Messages

How to fine tune your GUI?

Hello!
I am pretty new at Java and i have search for information about how to fine tune your GUI but have not found anything.
Last time when i wrote a program with a GUI I manually placed out all the widgets. This time I was thinking to give the layotmanager another go. But when I do I cant seem to easly place things exactly where I whant.
For instance in this code, all my buttons are to the left in the boarder layout north part.
I whant to learn:
How do I move all the buttons to the right, little further down, etcetera to my specifications
Please if someone could provide me a link to a website, tip on what I need to search for. So I can learn how to do this when you mix diffrent layoutmanager in one GUI.
Example of my code:
//Import java library
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionListener;
public class View_Inlupp2 {
     //*****GUI Components
     //Menu File Items
     private JMenuItem New = new JMenuItem("New");
     private JMenuItem Open = new JMenuItem("Open");
     private JMenuItem Save = new JMenuItem("Save");
     private JMenuItem Save_As = new JMenuItem("Save as");
     //Menu Operations Items
     private JMenuItem Find_Route = new JMenuItem("Find Route");
     private JMenuItem Show_Connections = new JMenuItem("Show Connections");
     private JMenuItem New_Place = new JMenuItem("New Place");
     private JMenuItem New_Connection = new JMenuItem("New Connection");
     private JMenuItem Change_Connection = new JMenuItem("Change Connection");
     //Top field
     private JButton Find_RouteBtn = new JButton("Find Route");
     private JButton Show_ConnectionsBtn = new JButton("Show Connections");
     private JButton New_PlaceBtn = new JButton("New Place");
     private JButton New_ConnectionBtn = new JButton("New Connection");
     private JButton Change_ConnectionBtn = new JButton("Change Connection");
     //Left side
     //Center
     public View_Inlupp2() {
          //Create and show the GUI.
          createAndShowGUI();
     //**********GUI Structure
     private JPanel createContentPane() {
          //Create the JPanel where we will put everything on
          JPanel totalGUI = new JPanel();
          //Set totalGui to have a BorderLayout with a horizontal
          //gap of 10 and a vertical gap of 10 between each widget
          totalGUI.setLayout(new BorderLayout(10, 10));
          //*****Top Field
          //Create a holder for the buttons with a BoxLayout.LINE_AXIS
          JPanel top = new JPanel();
          top.setLayout(new BoxLayout(top, BoxLayout.LINE_AXIS));
          top.add(Find_RouteBtn);
          top.add(Show_ConnectionsBtn);
          top.add(New_PlaceBtn);
          top.add(New_ConnectionBtn);
          top.add(Change_ConnectionBtn);
          //*****Put our GUI together and add all the widgets to our totalGUI
          totalGUI.add(top, BorderLayout.NORTH);
          totalGUI.setOpaque(true);
          return totalGUI;
     private JMenuBar createMenuBar() {
          //Create a menuBar
          JMenuBar menuBar = new JMenuBar();
          //Create menus
          JMenu File = new JMenu("File");
          JMenu Operations = new JMenu("Operations");
          //Add menus to menuBar
          menuBar.add(File);
          menuBar.add(Operations);
          //Add menuItems to the File menu
          File.add(New);
          File.add(Open);
          File.add(Save);
          File.add(Save_As);
          //Add menuItems to the Operations menu
          Operations.add(Find_Route);
          Operations.add(Show_Connections);
          Operations.add(New_Place);
          Operations.add(New_Connection);
          Operations.add(Change_Connection);
          return menuBar;
     //**********Create the window frame
     //Create the frame and add the created content pane.
     private void createAndShowGUI() {
          JFrame.setDefaultLookAndFeelDecorated(true); //The program look the same on Windows, Mac and Linux
          JFrame frame = new JFrame("Inlupp2");
          //Set the ContentPane, menuBar, and the settings for our window
          frame.setContentPane(createContentPane());
          frame.setJMenuBar(createMenuBar());
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setSize(1024, 640);
          //frame.setResizable(false);
          frame.setVisible(true);
     //**********Interaction
     //Add the ActionListener passed by the Controller to each of the buttons
     public void buttonActionListeners(ActionListener al) {
     }//End buttonActionListener
}//End class

First of all, learn and use proper Java naming conventions. All text books, tutorial and code examples on the forums use these naming conventions. So don't make up your own. Variable names should NOT start with an upper case character.
By default a JPanel uses a FlowLayout. Read the API to learn how to change the default left alignment to center or right.
If you want extra space around a panel you can use an EmptyBorder.
Both of these topics are covered in the Swing tutorial and you've been given the link to the tutorial in the past.
Also, the code you posted is not executable so we can't see the problems you attempt to descripe.
If you need further help then you need to create a [Short, Self Contained, Compilable and Executable, Example Program (SSCCE)|http://sscce.org], that demonstrates the incorrect behaviour.

HOW TO FINE TUNE QUERY

Hi,
I am having below two queries. 2nd query is taking more time & it gives time out error. Can anybody tell how to fine tune below query. Thanks.
1st Query.
SELECT EKETEBELN EKETEBELP EKETETENR EKETEINDT
         EKETMENGE EKETWEMNG
         INTO TABLE I_EKET
         FROM EKET
         WHERE EKETMENGE <> EKETWEMNG
                                         AND
                EKET~EINDT IN S_EINDT.
DESCRIBE TABLE I_EKET LINES V_ZLINES.
IF V_ZLINES > 0.
2nd Query.
    SELECT EKKOEBELN EKKOAEDAT EKKOLIFNR EKPOEBELP EKPO~MATNR
           EKPO~WERKS
           EKPOLOEKZ EKPOELIKZ EKPOTXZ01 EKPONETPR LFA1~NAME1
           INTO TABLE I_PODEL
           FROM EKKO
           INNER JOIN EKPO ON EKKOEBELN = EKPOEBELN
           INNER JOIN LFA1 ON EKKOLIFNR = LFA1LIFNR
           FOR ALL ENTRIES IN I_EKET
           WHERE EKKO~EBELN = I_EKET-EBELN AND
                 EKPO~EBELP = I_EKET-EBELP AND
                 EKPO~MATNR IN S_MATNR AND
                 EKPO~WERKS IN S_WERKS AND
                 EKPO~WERKS NE 'W001'   AND
                 EKKO~EKORG = P_EKORG   AND
                 EKKO~LIFNR IN S_LIFNR AND
                 EKKO~LOEKZ NE 'X'      AND
                 EKPO~LOEKZ NE 'S'      AND
                 EKPO~ELIKZ NE 'X'      AND
                 EKPO~LOEKZ NE 'L'      AND
                 EKKO~AEDAT IN S_AEDAT.
ELSE.
    WRITE 'No POs found for the selection criteria!'.
ENDIF.

Not the right forum to ask this question.
VJ

How to fine tune a software instrument

Can anyone tell me how to fine-tune a software instrument that's a little sharp for my audio track? Is there an easy way to do that?

Which instrument? Here it is for the EXS24 II.

How to fine tune ROIs of LEDs of a camera image?

Hi,
I use NI Smart Camera and NI Vision Builder 2012 for measuring HUE values of the LEDs. I can manually adjust the ROI of each LED. Sometimes mechanics move a bit and my ROIs are then tilted/off from LED and measurement results are staring to fail. I am wondering how to set vision builder/camera to automatically fine tune ROIs when needed? I attach a sample picture of LEDs. There is also situation where I manually fine tune LED D79's ROI.
BR,
Jick
Attachments:
LEDs.png ‏37 KB

Thanks for the example. There is still one open question: how do I detect if one LED is OFF? For example if one LED is missing Detect Objects 1 step finds one object less but how can I know which LED is missing/off? How about creating Detect Object step for each LED separately and if there is no LED on measure colors step just fails? I attach my suggestion here.
BR,
Jick
Attachments:
Adjust_ROIs.vbai ‏114 KB
camera_simulation_image2.png ‏26 KB

How to fine tune the performnce of Adobe - WebDynpro Java

Hi Experts,
Upon deploying an Adobe - WebDynpr Java application on my local NWDW machine having 2 GB RAM, it takes around 10 minutes by watch before the PDF form appears on the screen with the populated data.
This is really depressing as the client will surely not accept this.
Any tips on fine tuning the performance of Adobe online applications?
Regards,
Shobhit

hi,
when the J2EE engine is running...
goto task manager....
see performance.
if the memory usage is more than the memory you have installed,
that means you are using virtual memory...(ie. hard disk as RAM)
try shutting down any excess processes which you are not using.
(CAUTION: shut down only those processes which you know)
Summary is:-
check if you are on virtual memory.
because if you are using virtual memory....
you are falling short of RAM.
our server also has 2 GB RAM, but it works fine(including Interactive forms)
regards,
-ag

How to fine-tune KM Navgation iView

Hi Experts,
We have 6-7 KM navigation iviews on the homepage, all rendering xml news from different folders of KM.
Now we have discovered that the maximum time of page loading is occupied by these navigation iviews(If we make these navigation iviews invisible, then the loading time is almost half).
Please suggest some ways to tune these Navigation iviews so that the load time of homepage should be less.
Thanks,
Ankit

Hi Ankit
This is a classic issue - the performance for the KM Navigation Iview is very poor, and I would never suggest you to put more 2-3 KM Nav Iviews on the same page. And I would not recommend you to put any KM Nav Iviews on a frontpage or any other important or content-heavy page.
You have the following options:
1) Limit the number of KM Nav Iviews on the page in question.
2) Set Cache Level to Shared (server side caching) even though this feature is not working consistently in the SAP Portal.
3) Configure the search iview (search component set and search options set) according to the Last10Documents scenario: http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/45bcc1c0-0d01-0010-1094-fe7993416ea6
4) Contact a developer and let him code a servlet used to render pure html according to your needs. Show him this introduction: http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/3059b588-e19b-2910-7d8f-9b689a066e3c
Best regards,
Martin Søgaard

SQL stmt fine tunning

Hi DBA,
i am new to this field.
i can see from EM some sql are taking 8%- 95% of Db . i get the SQL_ID from the Em how to fine tune this?
also can you please help me out with some standard recommendations to run the DB in best manner.
Thanks in advance.

As a generic recommendation for slow sql queries, read the following thread ,
When your query takes too long ...
HTH
Aman....

How to deocde a Base64 String in Sun Java ME SDK 3.0(Urgent)

Hi there, I want to decode a base64 encoded String in Sun Java ME SDK 3.0 , but cant find any solution to this, after doing search related to this I found that it's very easy to decode a Base64 string in Sun Wireless Toolkit 2.5 using following code:
import com.sun.midp.io.Base64;
byte[] data = Base64.decode(EncodedString);
But I found that it's not possible in Java ME SDK as com.sun.midp.io.Base64 is not available there, anyone please give me some alternative of above code so that I can decode a Base64 String in Java ME SDK.
Eagerly waiting for the possible solution.

Can you please let us know as how you solved the problem? Since we are developing a blackberry app, we found base64 class for blackberry development. We have plans of doing the same in android, not sure whether they have this. As long as we have generic base64 class that can be used in any client device, that would be great. I did a lot of research and could not fine. Please give us the solution.

How can I fine tune the performance of my IMS5.1 mailserver?

I installed the IMS5.1 on Solaris 8 with default parameters, without IDA. It is used as a mail relay. It seems to have/keep about 700 msgs in the tcp_local channel but none in the process channel. It uses the cpu very much, in my opinion too much (100% is no exception. It uses the swap file for only 30%. How can I tune the performance of my system. Don't laugh: the "server" is only a SUN Ultra 5 workstation.

I've been working with this MTA since '95. Unfortunately there is no easy answer. The number of msgs in queue is not an indication of performance, it can be, but it can also be that the hosts your system is trying to reach are not available. You can use tools like imsimta qtop to see top subjects or top domains. Poke around and see just why you have 700 msgs in your queues.
Channels like process or say conversion channel are internal while channnels like tcp_local deal with external systems. If you had mail backing up in the conversion channel then you'd have a good sign of local performance problems. Mail backing up in tcp_local is not necessarily a sign of performance problems on your end.
I don't see a problem with the software using all available CPU. What is wrong with that?
If you've made any changes to the configuration it could be that you have introduced something that is causing say a mapping process to loop and thus eat more CPU that would otherwise be normal.
What process is using all of this CPU? Knowing this would help to determine what part of the MTA might be using lots of CPU.

How good is the java Ras Sdk in Business objects XI?

I have programmed some reports from scratch by using the java ras sdk.
Somehow I have the feeling that new features of XI like dynamic image location, or
running totals aren't so well supported as for example through the Crystal report Designer.
Do others also think that Business objects is being a bit negligent on this Api?
Maybe they do not consider the Api as important anymore because most people will be using there web based out of the box jsp components?

Normally you should run your CR reports in the INfoView. You can start a report either by double clicking on it or by selecting View in the context menu. Still in order to fetch data you have to press the Refresh button in the CR viewer window (in the InfoView).
In the CMC I assume that you are using the Run now option in the context menu. Please note that this will just schedule your report immediatelly. hen the report is scheduled a new instance is created hich is available in the History of the report. In order to see a report in the CMC select again View in the context menu and you can again fetch data by pressing the Refresh button.
Regards,
Stratos

How do you fine tune an effect in Captivate 6

I'm trying to scale and move a video using the effects timeline and I want it to wind up in an exact location on the stage. Is there any way to fine tune it by entering in exact coordinates rather than by bouncing back & forth between Live Preview and Edit View? I'm used to being able to entering in exact numbers when tweening an object in Flash and this seems like a pretty bad way of moving things around on the screen. Am I missing something here?
Thanks

As a temporary workaround, this is my work flow:
I create a 'crosshair' in the exact location, using two line shapes that can be positioned exactly using the Transform accordion.
The motion path end points have a circle that you'll have to drag over the crosshair. Motion paths use the center point of an object, contrary to resizing, moving that is from the upper left corner of the bounding box. I used the described work flow in the first movie here: http://blog.lilybiri.com/reset-effects
Lilybiri

How to manually uninstall Java EE SDK on windows?

Hear about the new Java EE SDK, I uninstall previous installation and try the new one. When I install the new one, fellow error comes out.
writing file: E:\Sun\SDK\asadminTmp53047.tmp
[2006/12/18 21:08:28]: executing command: E:\Sun\SDK\bin\asadmin.bat create-domain interactive=false adminport 4848 adminuser admin passwordfile E:\Sun\SDK\asadminTmp53047.tmp instanceport 8080 domainproperties http.ssl.port=8181 --savemasterpassword=true domain1, in directory: E:\Sun\SDK
[2006/12/18 21:08:28]: [stderr]: command syntax error
[2006/12/18 21:08:28]: [return]: 255
I refer to http://wiki.java.net/bin/view/Projects/InstallProblems. There is no answer. And I try to clean file,folder and system registry. There is still the problem.
I wish there be a green version of Java EE SDK like eclipse. Would someone help me to manually uninstall old Java EE SDK and install a new one?

Check your PATH environment variable - if there are any garbage entries appended to it, clean up and retry SDK installation.

Signing message with certificate: JCE, IAIK or similar in IBM SDK 5.0

So, I'm in a very difficult problem.
Using Java:
I've an enterprise certificate (in .p12 format) altogether with its public key ("password" string). Also I've a text message which I've to sign in PKCS7 format. I've been reading a lot and I've realized that there's no STANDARD implementation to do what I want to do. There is the JCE/JCA API and the Certification API, but they are just API's, no implementation. Here are the facts:
-I've to run the application in the IBM JDK 5.0 (AS400 system).
-My application actually works in the SUN JDK 6.0 using the IAIK security provider, but not using JCE, its a very ugly code which I dont know really what it does, but it works. When I put it on the IBM JDK 5.0 it fails (java nullpointer blah blah).
-IAIK Documentation says that it works on JDK 5.0. Yeah, it works, but in SUN implementation, not in IBM's.
Today I don't know what the heck to do, really. What do you think it's the best solution?
-Trying to make the IAIK code work in IBM SDK 5.0 by test-and-error method.
-Trying to sign the message using JCE and the IBM JCE provider (this is what I'm actually trying to do). It would be very nice if somebody provides something to read about (I've read lot of IBM/SUN documentation and I couldnt find anything useful for now.
-Trying to put the SUN JDK 6.0 in the AS400. This would be the easy solution but my bosses said that this is impossible and very dangerous, and additionally this wouldn't work.
-Also I've another code which uses the BouncyCastle provider but this doesn't work. Would this be better to learn how to use? I prefer using standards, though.
In conclusion:
I've 4 security providers: IBM, SUN, IAIK and BouncyCastle (just IAIK works, and I need IBM), and
I've 4 SDK's: IBM 5.0, IBM 6.0, SUN 5.0 and SUN 6.0 (just SUN/IBM 6.0 works, and I need IBM 5.0).
I would like any documentation useful to read. I would provide any information which could be important to answer my question.

But I hope this could fix it :(
My last code:
public static String firmar(String contenido, String certificado, String password)
     throws Exception {
          System.out.println(new Date() + ":: Signing using IAIK provider.");
          boolean dettached = true;
         boolean attributes = true;
         boolean CRLF = true;
         IAIK iaik = new IAIK();
        Security.addProvider(iaik);
       byte aByteInfoToSign[] = contenido.getBytes("UTF8");
        if(aByteInfoToSign == null)
            throw new IOException("Empty message.");
        byte digest[] = SHA1(aByteInfoToSign);
        String digestHEX = toHexString(digest);
        KeyStore keystore = KeyStore.getInstance("PKCS12");
        FileInputStream fileinputstream = new FileInputStream(certificado);
        keystore.load(fileinputstream, password.toCharArray());
        String alias = null;
        Enumeration enumeration = keystore.aliases();
        if(enumeration.hasMoreElements())
            alias = enumeration.nextElement().toString();
        else
             throw new KeyStoreException("Firmador IAIK: Empty Keystore.");
        Certificate certificate = keystore.getCertificate(alias);
        PrivateKey privatekey = (PrivateKey)keystore.getKey(alias, password.toCharArray());
         * Declared absolutely to avoid incompatibilities betwenn IAIK and Sun classes.
        iaik.x509.X509Certificate ax509certificate[] = new iaik.x509.X509Certificate[1];
        ax509certificate[0] = new iaik.x509.X509Certificate(certificate.getEncoded());
        IssuerAndSerialNumber issuerandserialnumber = new IssuerAndSerialNumber(ax509certificate[0]);
        SignerInfo asignerinfo[] = new SignerInfo[1];
        asignerinfo[0] = new SignerInfo(issuerandserialnumber, AlgorithmID.sha1, AlgorithmID.rsaEncryption, privatekey);
          Attribute aattribute[] = new Attribute[4];
          aattribute[0] = new Attribute(ObjectID.contentType, new ASN1Object[] {
               ObjectID.pkcs7_data
          aattribute[1] = new Attribute(ObjectID.signingTime, new ASN1Object[] {
               (new ChoiceOfTime()).toASN1Object()
          ObjectID oid = new ObjectID("1.2.840.113549.3.2");
          SEQUENCE seqRC2 = new SEQUENCE();
          seqRC2.addComponent(oid,0);
          seqRC2.addComponent(new INTEGER(40));
          SEQUENCE seqEncrypAlgoritmos = new SEQUENCE();
          seqEncrypAlgoritmos.addComponent(seqRC2);
          Attribute atributo = new Attribute(ObjectID.symmetricCapabilities,
                               new ASN1Object[] {seqEncrypAlgoritmos});
          aattribute[2] = atributo;
          aattribute[3] = new Attribute(ObjectID.messageDigest, new ASN1Object[]{ new OCTET_STRING(digest) });
        if(attributes)
            asignerinfo[0].setAuthenticatedAttributes(aattribute);
        byte byte0;
        if(dettached)
            byte0 = 2;
        else
            byte0 = 1;
        SignedData signeddata = new SignedData(digestHEX.getBytes(), byte0);
        signeddata.setCertificates(ax509certificate);
        signeddata.addSignerInfo(asignerinfo[0]);
        ContentInfo contentinfo = new ContentInfo(signeddata);
        if(!contentinfo.hasContent())
             throw new Exception("Couldn't create the sign");
        ByteArrayOutputStream result = new ByteArrayOutputStream();
        ByteArrayOutputStream source = new ByteArrayOutputStream();
        contentinfo.writeTo(source); // <-- here is the error (line 136)
        Base64OutputStream base64outputstream = new Base64OutputStream(result);
        base64outputstream.write(source.toByteArray());
        base64outputstream.flush();
        base64outputstream.close();
        String resFinal;
        if(CRLF)
             resFinal = result.toString();
        else
             resFinal = result.toString().replaceAll("[\r\n]+","");
//         resFinal = sinCRLF(result.toString());
        if(resFinal.equals(""))
            throw new Exception("Couldn't create the sign");
         * Restore the Security variable.
        Security.removeProvider(iaik.getName());
        return resFinal;
     private static byte[] SHA1(byte abyte0[])
        try
            MessageDigest messagedigest = MessageDigest.getInstance("SHA-1");
            byte abyte1[] = messagedigest.digest(abyte0);
            messagedigest.reset();
            return abyte1;
        catch(NoSuchAlgorithmException nosuchalgorithmexception)
             throw new Error("Configuration error", nosuchalgorithmexception);
     private static String toHexString(byte abyte0[])
        StringBuffer stringbuffer = new StringBuffer();
        int i = abyte0.length;
        for(int j = 0; j < i; j++)
            byte2hex(abyte0[j], stringbuffer);
        return stringbuffer.toString().toUpperCase();
     private static void byte2hex(byte byte0, StringBuffer stringbuffer)
        char ac[] = {
            '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
            'a', 'b', 'c', 'd', 'e', 'f'
        int i = (byte0 & 0xf0) >> 4;
        int j = byte0 & 0xf;
        stringbuffer.append(ac);
stringbuffer.append(ac[j]);
}Using the IBM SDK 5.0, the error:iaik.pkcs.PKCSException: iaik.asn1.CodingException: iaik.asn1.CodingException: Unable to encrypt digest: No installed provider supports this key: (null)
     at iaik.pkcs.pkcs7.SignedData.toASN1Object(Unknown Source)
     at iaik.pkcs.pkcs7.SignedDataStream.toASN1Object(Unknown Source)
     at iaik.pkcs.pkcs7.ContentInfo.toASN1Object(Unknown Source)
     at iaik.pkcs.pkcs7.ContentInfo.writeTo(Unknown Source)
     at aeat.FirmadorIAIK.firmar(FirmadorIAIK.java:136)
... more irrelevant data...

I need to fine tune a query

Hi All,
I need to fine tune my select query . I am giving a sample query which is model of my Query .
Sample Tables: Employee, Manager, Department
Select a.employee_name,a.employee_age,decode(a.employee_status,'Y','Promoted','Still in Progress'), NVL(b.employee_details , 0),c.department_name from employee a, manager b , department c where a.employee_id =b.employee_id(+) and a.employee_id = c.employee_id(+) and c.department_status in ('Y',A') order by a.employee_joining_date
This is a sample query. In my query which should be fine tune has lot of decode and nvl functions. This query is passed to oracle as string from Java .It takes 2 seconds but it should be taking only fraction of seconds..
What shall i do?
Shall i create materialise views or a function in oracle with return value as sys_refucursor to Java code. does function based index should be used in where clause only. If so what should i do to minimise decode and nvl functions.Please help me

>
Select a.employee_name,a.employee_age,decode(a.employee_status,'Y','Promoted','Still in Progress'),
NVL(b.employee_details , 0),c.department_name from employee a, manager b , department c
where a.employee_id =b.employee_id(+) and a.employee_id = c.employee_id(+) and c.department_status
in ('Y',A') order by a.employee_joining_date I'm wondering why an "employee_details" field is 0 - doesn't make much sense to me.
Also, the (+) syntax is deprecated - use standard ANSI join syntax instead (Mr. Google is your friend).
This is a sample query. In my query which should be fine tune has lot of decode and nvl functions.
This query is passed to oracle as string from Java .It takes 2 seconds but it should be taking only fraction of seconds..Why should it take only a fraction of a second? How do you know this for a fact? TKProf should be
able to tell you what's happening.
What shall i do?
Shall i create materialise views or a function in oracle with return value as sys_refucursor to Java code.
does function based index should be used in where clause only. If so what should i do to minimise
decode and nvl functions.Please help meSounds to me like you're thrashing around desperately in search of a "fancy" solution.
Read some performance books on Oracle - you don't mention your version of Oracle
or your OS, so it's difficult to help with that.
Christopher Lawson's book is an excellent and very readable into to Oracle performance.
Also, Oracle Performance 101 - as well as anything by Tom Kyte. More advanced stuff is
available from Jonathan Lewis and Christian Antognini. Also, take a look at the FAQ for
this group (as recommended by the other poster) and don't forget the docco*
or (short version) RTFM*.
HTH,
Paul...

Nw2004s Java - IBM SDK - How to fine tune

Similar Messages

Maybe you are looking for