Can we call sql function in java

as i know i can call stored procedures ,but can i call pl/sql functions.

Using JDBC you can execute any valid sql statement.
For a pl/sql function you use a CallableStatement and the syntax:
{?= call <procedure-name>[<arg1>,<arg2>, ...]}
http://java.sun.com/j2se/1.5.0/docs/api/java/sql/CallableStatement.html

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ADF: Can i call javascript function from java clsss method in ADF?

Hi,
I want to call javascript function in Java class method, is it possible in ADF? , if yes then how?
or I need to use Java 6 feature directely?
Regards,
Deepak

private void writeJavaScriptToClient(String script)
FacesContext fctx = FacesContext.getCurrentInstance();
ExtendedRenderKitService erks = Service.getRenderKitService(fctx, ExtendedRenderKitService.class);
erks.addScript(fctx, script);
}usage
StringBuilder script = new StringBuilder();
script.append( "var popup = AdfPage.PAGE.findComponentByAbsoluteId('p1');");
script.append("if(popup != null){"); script.append("popup.show();"); script.append("}");
writeJavaScriptToClient(script.toString());Timo

Calling a PL/SQL function from java

I would like to call a pl/sql function from java. My pl/sql function is taking arrays of records as parameters. How do i proceed? Which specific oracle packages do I have to import?
Please send an example.
TIA,
Darko Guberina

Documentation here: http://download-uk.oracle.com/docs/cd/B14117_01/java.101/b10983/datamap.htm#sthref185
says JPublisher can publish records too.
But when I change the example given at http://download-uk.oracle.com/docs/cd/B14117_01/java.101/b10983/datamap.htm#sthref190 as following:
PACKAGE "COMPANY" AS
type emp_rec is record (empno number, ename varchar2(10));
type emp_list is varray(5) of emp_rec;
type factory is record (
name varchar(10),
emps emp_list
function get_factory(p_name varchar) return factory;
END;
then I see <unknown type or type not found> at sql or java files generated. Any ideas?

Error PLS-00306 during calling PL/SQL function from Java

Hi all,
I am facing a problem during call of oracle PL/SQL function from java using CallableStatement.
I receive following error message.
java.sql.SQLException: ORA-06550: line 1, column 13:
PLS-00306: wrong number or types of arguments in call to 'EXPORT_HIST_ALARMS_FUNC'
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
As per above error EXPORT_HIST_ALARMS_FUNC in oracle has this signature.
CREATE OR REPLACE FUNCTION EXPORT_HIST_ALARMS_FUNC(startDateTime VARCHAR2, endDateTime VARCHAR2, meType VARCHAR2) RETURN VARCHAR2 IS
END EXPORT_HIST_ALARMS_FUNC;
Above function I have called following way in java.
String sql = "begin ?:= EXPORT_HIST_ALARMS_FUNC(?, ?, ?); end;" ;
CallableStatement cStatement = null;
cStatement = connection.prepareCall(sql);
cStatement.registerOutParameter(1,Types.VARCHAR);
cStatement.setString(2,startDateTime);
cStatement.setString(3,endDateTime);
cStatement.setString(4,meType);
cStatement.execute();
msg = cStatement.getString(1);
Actually above function requires three input parameters and one return parameter.
During execution of above java code it throws SQLException and shows PLS-00306: wrong number or types of arguments in call to 'EXPORT_HIST_ALARMS_FUNC' error.
I have run this function directly from oracle with three parameters and run successfully and finally it returns string.
But I am unable to figure out why it doesn't run from above java code.
Please help regarding this.
Thanks.
Regards,
Shardul Banker

Try this:
String sql = "begin ?:= EXPORT_HIST_ALARMS_FUNC(?, ?, ?); end;" ;
CallableStatement cStatement = null;
cStatement = connection.prepareCall(sql);
cStatement.registerOutParameter(1,Types.VARCHAR);
cStatement.setString(1,startDateTime);
cStatement.setString(2,endDateTime);
cStatement.setString(3,meType);
cStatement.execute();
msg = cStatement.getString(1);Regards,
Martijn Teigeler
Edited by: mTeigeler on Oct 13, 2007 10:22 AM

How to call a function from Java to JSP

Hello,
I have a question about using tags.
I have a java file,which has a function. Now I want to call this function into my JSP page.
I'm using JSP 1.2 and TOMCAT 4.1 with Java2 SDK.
I search through the web and find a method to do this.Bu it requires JSP 2.0
But I try that in my machine(using JSP 1.2).It gives an error:
Did you know what is the error? Or is there any method to call a function into my JSP page?
Please, help me to solve this.
Here are my codes(part of them)
UserPassword.java file
package data;
import java.io.*;
import java.sql.*;
import java.util.*;
import javax.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class UserPassword
     public static String verify(String username,String password){
          // some codes
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE taglib
        PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN"
     "http://java.sun.com/j2ee/dtd/web-jsptaglibrary_1_2.dtd">
<taglib>
<tlib-version>1.0</tlib-version>
<jsp-version>1.2</jsp-version>
<short-name>simple</short-name>
<uri>http://jakarta.apache.org/tomcat/HRM/WEB-INF/lib</uri>
<description>
     A tab library for the login
</description>
<function>
        <description>verify username and password</description>
        <name>verify</name>
        <function-class>data.UserPassword</function-class>
        <function-signature>String verify(java.lang.String,java.lang.String)
        </function-signature>
</function>
</taglib>I put this file into the webapps/HRM/WEB-INF/lib folder
Here is my JSP file.
<%@ page language="java" %>
<%@ page import="data.UserPassword" %>
<%@ page session="true" %>
<%@ taglib prefix="login" uri="/WEB-INF/lib/LoginVerify.tld" %>
<jsp:useBean id="useraccount" class="data.UserPassword"/>
<jsp:setProperty name="useraccount" property="*"/>
<%
String status = UserPassword.verify(String username,String password);
String nextPage = "MainForm.jsp";
if(status.equals("InvalidU")) nextPage ="InvalidUserName.jsp";
if(status.equals("InvalidP")) nextPage ="InvalidPassword.jsp";
if(status.equals("main")) nextPage ="MainForm.jsp";
%>
<jsp:forward page="<%=nextPage%>"/>
Here is the error:
org.apache.jasper.JasperException: XML parsing error on file /WEB-INF/lib/LoginVerify.tld: (line 18, col -1): Element "taglib" does not allow "function" here.
     at org.apache.jasper.xmlparser.ParserUtils.parseXMLDocument(ParserUtils.java:189)
     at org.apache.jasper.compiler.TagLibraryInfoImpl.parseTLD(TagLibraryInfoImpl.java:247)
     at org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibraryInfoImpl.java:183)
     at org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:354)
     at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:381)Please, help me to solve this trouble.
Thanks.

Yes. As serlank showed, you can just call the function easily in scriptlet tags
However the whole point of a tag library is to avoid the use of scriptlets.
Seeing as you can't use functions, is just to do it as a standard tag.
ie in your jsp
<login:verify name="<%= userName %>" password = "<%= password %>" resultVar = "status"/>
<c:choose>
<c:when test="${status == 'InvalidU'}">
    <c:set var="nextPage" value="InvalidUserName.jsp"/>
</c:when>
<c:when test="${status == 'InvalidP'}">
    <c:set var="nextPage" value="InvalidPassword.jsp"/>
</c:when>
</c:choose>In your case, this tag in the tld would possibly look something like this.
You would then have to write a tag handler class that would call the function you want.
<tag>
<name>verify</name>
<tagclass>com.tags.login.Verify</tagclass>
<teiclass>com.tags.login.VerifyTEI</teiclass> (if required)
<bodycontent>JSP</bodycontent>
// name attribute
<attribute>
      <name>name</name>
      <required>true</required>
      <rtexprvalue>true</rtexprvalue>
    </attribute>
// password attribute
    <attribute>
      <name>password</name>
      <required>true</required>
      <rtexprvalue>true</rtexprvalue>
    </attribute>
// result variable to return a response from the tag.
<variable>
    <name-from-attribute >resultVar</name-from-attribute >
    <variable-class>java.lang.String</variable-class>
    <declare>true</declare>
    <scope>AT_END</scope>
</variable>
</tag>Hope this helps some, and doesn't confuse too much :-)
Cheers,
evnafets

The troubles with creating SQL function in Java

Hi!
I use Oracle 10g and connect to it from Java application. I need in creating SQL functions from Java code.
In Java I have:
Statement stm = null; try{ stm = dbConnection.createStatement(); stm.executeUpdate( query ); }catch(SQLException ex){ throw ex; }finally{ try{ stm.close(); }catch(Exception ex){ stm.close(); } }
And I'm passing the next SQL function:
create or replace function get_me return number is
result number;
begin
select 5 into result from dual;
return result;
end;
This code is run successful, but I can't call this funtion, because it has status Invalid
I'm looked the next error: PLS-00103: Encountered the symbol "" when expecting one of the following: . @ % ; is authid as cluster order using external character deterministic parallel_enable pipelined aggregate
But I don't understand, What the matter? From Oracle Enterprise Manager I can create this function without problems. So, I wrote the wong Java code. Also, I can't find my error :(
May be, do u have the some ideas?
Thank you very much!

Post the whole pl/sql code please.
To run PL/SQL from within java you'll need callablestatement.
[here |http://www.idevelopment.info/data/Programming/java/jdbc/PLSQL_and_JDBC/CallPLSQLFunc.java] an example : http://www.idevelopment.info/data/Programming/java/jdbc/PLSQL_and_JDBC/CallPLSQLFunc.java

Can I call a function in another package?

Dear all,
Can I call a function in another package?
Say I have package A, and package B.
Is it possible for me to call a function in inside package A, within a function inside package B?
If yes, what's the syntax.
Thanks in advance!

The variable in the calling package that will receive the value of the function in the other package needs to be defined based on that type in the other package directly:
sql>create or replace package pkg_a
2 is
3    type testTable is table of varchar2(10) index by binary_integer;
4
5    function f_a return testTable;
6 end;
7 /
Package created.
sql>create or replace package body pkg_a
2 is
3    function f_a
4      return testTable
5    is
6      v_table testTable;
7    begin
8      v_table(1) := 'One';
9      v_table(2) := 'Two';
10      return v_table;
11    end;
12 end;
13 /
Package body created.
sql>create or replace package pkg_b
2 is
3    procedure p_b;
4 end;
5 /
Package created.
sql>create or replace package body pkg_b
2 is
3    procedure p_b
4    is
5      v_table pkg_a.testTable; -- this variable has to be based on the type in pkg_a
6    begin
7      v_table := pkg_a.f_a;
8      for i in 1..v_table.count loop
9        dbms_output.put_line( v_table(i) );
10      end loop;
11    end;
12 end;
13 /
Package body created.
sql>exec pkg_b.p_b
One
Two
PL/SQL procedure successfully completed.

Calling c++ function in java

Hi,
I would like to know how I can modify c++ program so that I can use its(c++) functions in java.
the program is c++ ready-made and i would like to use its functions in a java package.
i read the turiols concerning this on java.sun.com but does that mean that i have append "jni.h", "JNIEXPORT", etc to the c++ file?
Hints shall be appreciated.
Thanks.

OK, thanks.I have tried the jni procedure but without success.
Is it possible for Java talk to native code (c++) via TCP/IP.
Please advice of any links/knowledge.
Thanks.
1. Strictly speaking, java does not operate on C++; it
operates on C functions. This is more than a quibble:
o JNI expects to call C functions, not methods of C++
objects.
o In fact, if you really just have functions, but they
are compiled as C++, then you will probably have to
declare C linkage.
2. Functions called from java must conform to JNI
calling conventions.
o In general, the starting point is to define how you
would like the object and native method to look in
java, then run jni.h to generate the appropriate C
header definitions, then write the C code.
o Functions called from java must exist in shared
libraries - on Windows, in dlls.
o Existing C function libraries are typically accessed
by writing a "wrapper" dll that implements the
required java interface and then calls the existing
library functions.
o In fact, a wrapper could actually instantiate C++
objects and call their methods.
3. You might care to look up something called JACE,
which some people claim can generate the kinds of
wrappers discussed here.

Calling C++ functions by Java via CORBA?

Hello,
I am interested in source code examples of calling C++ functions by Java via CORBA. For example the client is in Java and the server is in C++. Is it posible that the IDL compiler can generate "java" client stubs and "c++" server sceleton? So the implementation of the client will "inherit" the stubs generated by the IDL compiler, and the server implementation will use the sceleton.
Thank you in advance.

As far as I know, you've got to have your idl on both side. You compile idl mapping to java on client side and mapping to C++ on server side. Then you should be able to do it.
Kim

Calling c function from java!!

hi all,
I want to call c function from java . I have gone through the link http://java.sun.com/docs/books/tutorial/native1.1/stepbystep/index.html for JNI.
According to this link we need to write the native method implementation in such a way that the method signature should exactly match the method signature created in the header file.
My problem is that i have a c application which i cannot modify in any ways i.e., i cannot change its code. But i want to call its function from my java code.
Please suggest me appropriate solution for this. Please let me know whether it can be done using JNI or is there any other method for this.
thanks

This link is amazing since those sources were wrote in 1998 and I started to develop JNative in 2004. I did not found them when I started.
Since JNative can deal with callbacks and probably COM in a near future, I expect to see it living to Dolphin at least.
--Marc (http://jnative.sf.net)

Can we call a function module in ADHOC query

Hi
Can we call a function module in ADHOC query if yes how.
Also we ned to know how to call a function module in SAP query.
An early responce is appreciated.
Thanks and best regards
Rajeev

Okay as far as I understand your aim is:
To fill a field in the output list with a value that is based on the current line information and calculated by a function module
So go to SQ02 and create an additional field in the InfoSet.
You can refer in the coding to the technical names you can see in the left tree window like P0000-PERNR.
More information is avaiable in the Help part look for additional field in SQ02.
Regards,
Michael

How can I call a function from a procedure

I have a function named: f_calc_value which return the variable v_result. This function is part of a package.
How can I call this function from a new procedure I am creating?
Thanks

or refer this theread....calling function from procedure

Can you call a function module from within a smartform?

I was told that yu can not call a function module from a smartform - that does not make sense to me because you can do tons of ABAP within a smartform.
Well - can you?
Thanks.
Scott

Yes, you can call function modules.

Can i call a function module of SAP?

Hi, i have a question... Can i call a function module of SAP... I need print a document from a device, can i call the function module of SAP in order that me it prints it?
Thanks,

Hi Victor,
you can use the GenericSync Example of the MDK. This calls the Module to verify the user directly. Generic Sync is exactly for that purpose: call a BADI directly and no usage of SyncBO. Be aware, that you - out of the box- sync your app data as well at that moment, because a sync runs both - generic and smartsync. Even worse: even when you have nothing to sync in Generic Sync - so nothing to print - it will call the function module for generic sync as long as it is registered.
Well, anyway, this is the way to call a function module separate.
If it works with you rparticular print module? I have no idea, but if this is a normal function module - well, it should be ok.
Hope this helps.
Regards,
Oliver

Can we call a function within a function??????Urgent

Dear All,
Like we can call a procedure from another procedure , in the same way can we call a function within a function. Please reply it's urgent.
Regards

> Please reply it's urgent.
My usual soapbox response.
Saying your posting is urgent is rude and arrogant. Why? Because you are saying that other people who have posted problems here, have less important problems than yours. That despite how complex and critical their problem may be, yours take priority.
You're also demaning attention and a quick answer from people that provide support here - in their free time... and not getting paid a single cent for their efforts.
So just how can you demand any urgency to your posting from them?
Remember that this is a public forum. You cannot demand anything here. This is not Oracle Support. There are no SLA's here. Basic nettiquette applies.

Can we call sql function in java

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