Calling PL/SQL from JAVA

Could someone please point this newbie to where I can find out how to call a PL/SQL procedure or function from JAVA. Thanks in advance.

I see you got some good advices already. Just one more thing.... be real careful not to get into the Java Stored Procedure that is promoted by Oracle. It is too proprietary and very slow.

Similar Messages

Curious thing while calling a procedure from Java !...

Hi !. My name is Agustin and my doubt would be the following one... I am working for a e-business comp and they asked me to call a procedure from java... The code is the following one:
CallableStatement cs = null;
System.out.println("Fecha Nro. 1: " + paramFechaDesde);
System.out.println("Fecha Nro. 2: " + paramFechaHasta);
try
cs = getDBTransaction().createCallableStatement("{call paq_w_ListadoSiniestralidadART. p_sinsiniest(?,?,?,?) }",0);
cs.registerOutParameter(4,OracleTypes.VARCHAR);
cs.setInt(1,paramContrato.intValue());
cs.setString(2,paramFechaDesde);
cs.setString(3,paramFechaHasta);
cs.setString(4,paramNombreArchivo);
cs.executeQuery();
String nomArchivo = cs.getString(4);
System.out.println("### " + nomArchivo +" ###");
catch(SQLException e)
The weird thing is that, I was expecting a big big exception but the only thing I got is
### Error ###
The String I am expecting is a file's name !; so I am a little bit confused...
Also I didn't know where to post so If it's in the wrong category... I apologize !... If anyone need more details, I'll be checking out... The account I am working on is an Insurance company, who is the one who provide access to the DB and the procedures... So I can't check what's inside...

Please provide your Java and OS versions, the JDBC jar file and the Oracle DB version being used when you post.
>
I was expecting a big big exception
>
Then why do you have an empty exception block? That just makes it disappear so you won't see one if it happens.
And your code has
cs.registerOutParameter(4,OracleTypes.VARCHAR);
cs.setString(4,paramNombreArchivo);You use 'registerOutParameter' for an OUT parameter and the 'setXXX' methods for other parameters.
Remove the 'setSTring' for the OUT parameter.
Then as malcollmmc already said
>
Sounds like the PL/SQL is returning "Error" as the 4th parameter of the call
>
The actual value returned by PL/SQL is strictly determined by the PL/SQL code and Java and JDBC are not involved.
Fix the code problems, retest, and folllowup with whoever wrote the code if it still returns ERROR.

Is it possible to call ctx_doc.filter from Java?

Hello all,
Is it possible to call ctx_doc.filter from Java?
If so, do you have a code sample?
Thanks,
Marvin

I have some Java code using ctx_doc.markup that can help:
try {
//make db conn
OracleCallableStatement stmt =(OracleCallableStatement)conn.prepareCall("begin "+
"ctx_doc.markup(index_name=>'text_idx', "+
"textkey=>?,"+
"text_query=>?,"+
"restab=>?,"+
"starttag=> '<a>',"+
"endtag=> '</a>' "+
"); " +
"end; ");
... // register other parameters
stmt.registerOutParameter(3, OracleTypes.CLOB);
stmt.execute();
oracle.sql.CLOB text_clob=null;
text_clob = ((OracleCallableStatement)stmt).getCLOB(3);
// read the CLOB by chunks
int chunk_size=text_clob.getChunkSize();
Reader char_stream = text_clob.getCharacterStream();
char[] char_array = new char[chunk_size];
for(int n=char_stream.read(char_array);n>0; n=char_stream.read(char_array)){
out.print(char_array);}
}catch (SQLException e)

Calling ctx_doc.filter from java...is it possible?

Hello all,
Is it possible to call ctx_doc.filter from Java?
If it is possible, does anyone have a code sample they can share?
Thanks for the help,
Marvin
http://www.esenai.com

I have some Java code using ctx_doc.markup that can help:
try {
//make db conn
OracleCallableStatement stmt =(OracleCallableStatement)conn.prepareCall("begin "+
"ctx_doc.markup(index_name=>'text_idx', "+
"textkey=>?,"+
"text_query=>?,"+
"restab=>?,"+
"starttag=> '<a>',"+
"endtag=> '</a>' "+
"); " +
"end; ");
... // register other parameters
stmt.registerOutParameter(3, OracleTypes.CLOB);
stmt.execute();
oracle.sql.CLOB text_clob=null;
text_clob = ((OracleCallableStatement)stmt).getCLOB(3);
// read the CLOB by chunks
int chunk_size=text_clob.getChunkSize();
Reader char_stream = text_clob.getCharacterStream();
char[] char_array = new char[chunk_size];
for(int n=char_stream.read(char_array);n>0; n=char_stream.read(char_array)){
out.print(char_array);}
}catch (SQLException e)

Call .bat file from java code

I need to call an application that uses a .bat file to execute from a java program. Is that possible?
This is the .bat file:
importcli.exe ciaf2735 C:\Importcli\files\SAI2735*.txt
importcli.exe ciaf2735 C:\Importcli\files\CI2735*.txt
importcli.exe ciaf2735 C:\Importcli\files\SC2735*.txt
importcli.exe db1800 C:\Importcli\files\*.mdb

magaupe wrote:
I need to call an application that uses a .bat file to execute from a java program. Is that possible?
This is the .bat file:
importcli.exe ciaf2735 C:\Importcli\files\SAI2735*.txt
importcli.exe ciaf2735 C:\Importcli\files\CI2735*.txt
importcli.exe ciaf2735 C:\Importcli\files\SC2735*.txt
importcli.exe db1800 C:\Importcli\files\*.mdb
Hmmm, I wonder what would happen if there were a web search engine and you could research like this:
[http://www.google.com/search?hl=en&q=call+.bat+file+from+java]

Problem when calling a report from java

Hi all,
i have created a report using ireport which contains arabic data.
when i execute the report from ireport to generate a pdf file it works.
however when i call this report from java i have an exception"
Could not create the report Could not load the following font :
pdfFontName : ARIAL.TTF
pdfEncoding : Identity-H"
the pdfFont i used it in ireport, also the pdfEncoding.
did anyone passed with the same problem
thanks for help

Hello Oracle experts,
The parameters are getting passed successfully in my report.
But I want to know hous to use it in my query group.
I just want the syntax.
Thanks

Calling a servlet from java

How to call a servlet from java?
your help is greatly appreciated..

Welcome to the forum
You seem to be misunderstanding something. Do some googling to learn what you need about servlets. Simplified, servlets are java code that's hosted by a web container, such as Tomcat. When a servlet gets called as a consequence of someone requesting a url from the container, it takes in a request object and a response object. All the magic is then in creating an appropriate response (e.g. html) for the incoming request.

How to Call C++ Method from Java

I need to call C++ method from Java.
I have gone through the JNI tuorial , but was not able to pin point things.
I read that :
You have to write JNI c functions which then call your C++ member functions.You need to write a JNI function which will call new on your C++ class.
Now i have java class :
Java Code JavaClass.java ---->
class JavaClass{
public native void nativeMethod();
    static
        System.loadLibrary("NativeCppCode");
     private void callCppMethod()
          //call C++ method
                JavaClass jvc = new JavaClass();
                jvc.nativeMethod()
}Cpp Code:
NativeCppCode.h---->
class NativeCppCode
public:
    getValue();
    setValue();
private:
   int a;
JNIEXPORT void JNICALL Java_JavaClass_nativeMethod(JNIEnv *env
               ,jobject obj);NativeCppCode.C---->
NativeCppCode::getValue()
   return a;
NativeCppCode::setValue()
   a = 1;
JNIEXPORT void JNICALL Java_JavaClass_nativeMethod(JNIEnv *env
               ,jobject obj)
NativeCppCode* nativeInstabce = new NativeCppCode();
NativeCppCode.setValue();
}Is this the correct way to do it.
Any suggestion would be a great help to me

tryit wrote:
I need to call C++ method from Java.Not possible.
JNI uses C methods.
Is this the correct way to do it.Same way you would do it in any C/C++ method (not java)
       MyClass* p = ....
       p->doit();
Common idiom for the pointer in the above is to pass it back and forth to your java code as a java long. You cast it it and from your class pointer. Provide an explicit java method to free it when done. Besides providing the explicit method also implement a finalizer to free it as well (however that is a fail safe and should not be relied upon.)

How to call gnuplot command from java

Hi there,
In our course, we are required to develop an GUI for gnuplot. In case you don't know about gnuplot, it's a plotting program and has lots of command. We want to use java and swing, but now we don't know how to call gnuplot command from java, or how to execute a shell command(script) from java.
By the way, since we need read in files with several columns of data and allow user to select a column, we want to use JTable. Is that reasonable?
Thanks a lot for any suggestions!
Jack

Hi, there:
Will using JTable add much overhead? I may have to use several JTables and switch among them. I can add scroll bar to or edit JTables, right?
BTW, do you have experience about gnuplot? Can I find the command tree of gnuplot somewhere? Or do you know a better place to post question about gnuplot? unix/linux group, maybe.
Thanks,
Jack
P.S. Would you guys answer my question after I use up my duke dollars? :- )

Call Crystal Report from java

Hi, Can anyone pl send me an e.g of how to call crystal reports from java ? Preferably crsytal version 10. how to instantiate a crystal report viewer? how to pass parameters? how to set the connection string?my email is <a href="mailto:[email protected]">[email protected]</a> Regards,Hui Bee 

Hi Hui Bee, There are a number of version 10 samples available contained in the following package:<a href="http://support.businessobjects.com/communityCS/FilesAndUpdates/cr10_jrc_samples.exe" title="JRC 10 samples">http://support.businessobjects.com/communityCS/FilesAndUpdates/cr10_jrc_samples.exe</a>However, I would strongly suggest that you take a look at using the latest version of the Java component that ships with our Crystal Reports for Eclipse product. You can download it from here:<a href="/node/450">http://diamond.businessobjects.com/node/450</a>and best of all, it's free! Regards, Sean Johnson (CR4E Product Manager) <a href="http://www.eclipseplugincentral.com/Web_Links-index-req-ratelink-lid-639.html">Rate this plugin @ Eclipse Plugin Central</a>

Can I call an interface from java

Dear All,
Can I call an interface from java in ODI ?
Best Regards
Arc

Short answer, Yes.
Long answer - you must create a scenario from the interface (the scenario is the "executable" code), right-mouse-button on the interface in the tree and "Generate Scenario". This can then be called using the invocation api this is documented in your <installationdirectry>/oracledi/doc/sdk/invocation. This points you at all the necessary classes etc to use.

I wants to call .Exe file from Java Programme

I wants to call .Exe file from Java programme. Please give answer with example. This very urgent. Help me

hi
u can use Runtime.exec() method in java.lang package
to execute exe files
regards
pnp

How can I call ora:appendToList from java snippet?

I want to assign a list of user from User Task A to User Task B, but I don't know how to call ora:appendToList from java snippet, and are there any better ways to solve this situation?

Hi Rakesh,
Thank you for your help.
For issue 1, for example, user jcooper apply a vacation, and the request goes to his manager jstein,
and jstein dispatch the task to mtwain and rsteven for parallel approval, (this is just for example, in
some case, the manager can use the reassign function), so I use simple workflow pattern for manager approval,
and parallel workflow pattern for parallel approval, but in my situation, the user for parallel approval is
uncertain, need select by manager jstein, so I want to know how to assign the user from java code to bpel process.
The following is how I solve the problem now, put the user list string in flexString1 of simple workflow task,
then allocate the array for parallel assigneeUsers, then use setVariableData assign the value, it can do the job,
but the code is awful, I want to know how to do it in some better way.
<assign name="copyPayloadFromTask">
<copy>
<from expression="ora:countNodes( 'inputVariable','task','/task:task /task:assigneeUsers')"/>
<to variable="currentLength"/>
</copy>
</assign>
<sequence>
<bpelx:exec name="Java_Embedding_2" language="Java" version="1.4"><![CDATA[
Element ele=(Element)getVariableData("inputVariable","task","/task:task/task:flexString1");
String users=ele.getNodeValue();
String[] userArray=users.split(",");
setVariableData("arrayLength",new Integer(userArray.length));
]]>
</bpelx:exec>
<while name="While_1" condition=" (bpws:getVariableData('currentLength')) < (bpws:getVariableData('arrayLength')) ">
<assign name="Assign_1">
<copy>
<from expression="ora:appendToList('inputVariable','task',' /task:task/task:assigneeUsers', string( 'test'))"/>
<to variable="oraBPMTemporaryVariable"/>
</copy>
<copy>
<from expression="ora:countNodes( 'inputVariable','task','/task:task /task:assigneeUsers')"/>
<to variable="currentLength"/>
</copy>
</assign>
</while>
<bpelx:exec name="Java_Embedding_1" language="Java" version="1.4"><![CDATA[
Element ele=(Element)getVariableData("inputVariable","task","/task:task/task:flexString1");
String users=ele.getNodeValue();
String[] userArray=users.split(",");
for(int i=0;i<userArray.length;i++){
setVariableData("inputVariable","task","/task:task/task:assigneeUsers["+(i+1)+"]",userArray);
}]]>
</bpelx:exec>
Thanks,
Ming

Calling javaFX script from Java program

I am trying to call JavaFX script from a simple Java program. code as follows:
import java.io.*;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
public class My{
public static void main(String[] args) {
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine engine = manager.getEngineByExtension("fx");
try {
InputStreamReader reader = new InputStreamReader(My.class.getResourceAsStream("first.fx"));
engine.eval(reader);
reader.close();
} catch (Exception e) {
e.printStackTrace();
my first.fx file code is here:
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.text.Text;
import javafx.scene.text.Font;
import javafx.scene.text.TextAlignment;
Stage {
title: "My First JavaFX Sphere"
scene: Scene {
width: 250
height: 250
content: [
Text {
font: Font { size: 24 }
x: 20, y: 90
textAlignment: TextAlignment.CENTER
content:"Welcome to \nJavaFX World"
} //Text
] // content
} // Scene
} // Stage
I am not able to run My.java. runtime error as follows:
java.lang.NullpointerException
Kindly correct me, where I am wrong

I am able to call .fx file from Java. Thank you all for helping me to resolve this problem
Regards,
Ritu

Calling C prog. from Java prog.

Hi.
I have a java GUI program as a interface. User can enter data, then java prog calls a C program and at the end the java GUI shows the returned parameters of C prog. The question is: how can I call C prog from Java GUI?
Thanks

"Calling a program" is not standard terminology, so I'm not sure what you're asking.
Do you want to call a function in a DLL (most likely written in C) inside your Java code? Yes, that's JNI.
Or do you want to execute a program (which may happen to have been written in C, but the language doesn' matter) from inside you Java code? That's [Runtime.exec|http://java.sun.com/javase/6/docs/api/java/lang/Runtime.html].

Calling PL/SQL from JAVA

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