JAVA Calling Oracle Function and Returning OBJECT

HI,
I am working as a developer in java/j2ee project.
I am facing one issue:
I need to call Oracle function from java code. Oracle User define function is residing in oracle package and returning Object which contains data.
Can you please help me
With Best Regards

golduniya wrote:
I need to call Oracle function from java code. Oracle User define function is residing in oracle package and returning Object which contains data.
Can you please help meIt requires a great deal of Oracle jdbc driver specific code.
[http://download-west.oracle.com/docs/cd/B10501_01/java.920/a96654/oraint.htm#1012664]

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Calling Oracle function and Procedure using OCCI with in C++ code

Could any body send me the sample code to create and execute Oracle function and Procedure using OCCI concept in C++?.
Edited by: 788634 on Aug 16, 2010 4:09 AM

Hi Vishnu,
Yes, sure, you can create a PL/SQL procedure, function, package, package body, etc. from within an OCCI application. I would say that, generally, this is not the sort of activity a typical client application would perform unless there is some initialization/installation processes that need to happen. In any case, here is a simple demo showing how to create a stand alone procedure (in a real application I would use a package and body) that returns a ref cursor. The ref cursor is just a simple select of two columns in the hr.countries sample table. Of course, there is no error handling, object orientation, etc. in this demo - I wanted to keep the code as short and as simple as possible to illustrate the concept.
Regards,
Mark
#include <occi.h>
#include <iostream>
using namespace std;
using namespace oracle::occi;
int main(void)
// occi variables
Environment *env;
Connection *con;
Statement   *stmt;
ResultSet   *rs;
// database connection information
string user = "hr";
string passwd = "hr";
string db = "orademo";
// sql to create the procedure which returns a ref cursor as out parameter
// should be run as hr sample user or in a schema that has select privilege
// on the hr.countries table and a synonym (countries) that points to the
// hr.countries table
string sqlCreate =
    "create or replace procedure get_countries(p_rc out sys_refcursor) as "
    "begin"
    " open p_rc for"
    " select country_id, country_name from countries order by country_name; "
    "end;";
// pl/sql anonymous block to call the procedure
string sqlCall = "begin get_countries(:1); end;";
// create a default environment for this demo
env = Environment::createEnvironment(Environment::DEFAULT);
cout << endl;
// open the connection to the database
con = env->createConnection(user, passwd, db);
// display database version
cout << con->getServerVersion() << endl << endl;
// create statement object for creating procedure
stmt = con->createStatement(sqlCreate);
// create the procedure
stmt->executeUpdate();
// terminate the statement object
con->terminateStatement(stmt);
// now create new statement object to call procedure
stmt = con->createStatement(sqlCall);
// need to register the ref cursor output parameter
stmt->registerOutParam(1, OCCICURSOR);
// call the procedure through the anonymous block
stmt->executeUpdate();
// get the ref cursor as an occi resultset
rs = stmt->getCursor(1);
// loop through the result set
// and write the values to the console
while (rs->next())
    cout << rs->getString(1) << ": " << rs->getString(2) << endl;
// close the result set after looping
stmt->closeResultSet(rs);
// terminate the statement object
con->terminateStatement(stmt);
// terminate the connection to the database
env->terminateConnection(con);
// terminate the environment
Environment::terminateEnvironment(env);
// use this as a prompt to keep the console window from
// closing when run interactively from the IDE
cout << endl << "ENTER to continue...";
cin.get();
return 0;
}

Calling Oracle Functions and Procedures in Java

I've looked online for a blurb on using Oracle SQL functions and
procedures in Java, but I haven't found anything. Can someone
either give me a quick crash course on this, or point me to the
best source of information for this?

From the SQLJ FAQ.
http://otn.oracle.com/tech/java/sqlj_jdbc/htdocs/faq.html#sqljplsql
Within your SQLJ statements, you can use PL/SQL anonymous blocks
and call PL/SQL stored procedures and stored functions, as in the
following examples: Anonymous
block:
#sql {
DECLARE
n NUMBER;
BEGIN
n := 1;
WHILE n <= 100 LOOP
INSERT INTO emp (empno) VALUES(2000 +
n);
n := n + 1;
END LOOP;
END
Stored procedure call (returns the maximum
deadline as an output parameter into an output host expression):
#sql { CALL MAX_DEADLINE(:out maxDeadline) };
Stored function call (returns the maximum
deadline as a function return into a result expression):
#sql maxDeadline = { VALUES(GET_MAX_DEADLINE)
Of course, you can also use JDBC code to achieve the same - the
standard JDBC escape sequences for stored function and procedure
calls are supported, using for example:
"{? = CALL GET_MAX_DEADLINE}"
or:
"{call MAX_DEADLINE(?)}"
and for the rest of the details, get that JDBC crash course...

Ora-06502 while calling oracle function

I am using 9.2.0.4.0 database.
I have vb.net application that uses oracle provider for .net to connect to database.
I am calling Oracle function which returns varchar2 value back.
when i execute cmd2.ExecuteNonQuery, I get ora-06502 error.
CREATE OR REPLACE FUNCTION ZZZ_TEMP( p_val IN VARCHAR2) RETURN varchar2
AS
BEGIN
RETURN 'HELLO';
EXCEPTION WHEN OTHERS THEN
RETURN SQLCODE||' - '||SUBSTR(SQLERRM,1,100);
END;
************** vb.net code
Dim cmd2 As New Oracle.DataAccess.Client.OracleCommand(UserSchemaName & ".ZZZ_TEMP", con)
Dim VAL As String
Try
cmd2.Parameters.Add("RetVal", Oracle.DataAccess.Client.OracleDbType.Varchar2, ParameterDirection.ReturnValue)
cmd2.Parameters.Add("p_val", Oracle.DataAccess.Client.OracleDbType.Varchar2, ParameterDirection.Input).Value = "XYZ"
cmd2.Connection = con
cmd2.CommandType = CommandType.StoredProcedure
cmd2.ExecuteNonQuery()
VAL = cmd2.Parameters("RetVal").Value
Catch ex As Oracle.DataAccess.Client.OracleException
MsgBox(ex.Message)
End Try

If I change this function to retrun number rather than Varchar2 and change my
RetVal parameter as follow it works. I am noticing that there might be a bug when function returns varchar2
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Calling oracle function from Access passthrough query does not return list

Thanks to the help I received in an earlier post I've created an oracle 10g function that returns a list after executing the sql it contains. It works in oracle, using sql developer.
I need to have the list that it returns show up in MS Access via a passthrough query. It's not working so far. The connection string etc is ok, I'm able to use passthrough queries to run sql strings successfully. But when I try to call the function via the Access passthrough query at first nothing seems to happen (ie no list appears) and if I try to run it again, there is a odbc error 'call in progress. Current operation canceled'. There are only the three records in the table. I'm missing something, can anyone spot it?
The passthrough query looks like this
select * from fn_testvalues from dual
Again that runs in oracle.
To create the testing table and 2 functions see below.
CREATE TABLE t_values (MyValue varchar2(10));
Table created
INSERT INTO t_values (
SELECT 'Merced' c1 FROM dual UNION ALL
SELECT 'Pixie' FROM dual UNION ALL
SELECT '452' FROM dual);
3 rows inserted
CREATE OR REPLACE FUNCTION fn_isnum(p_val VARCHAR2) RETURN NUMBER IS
n_val NUMBER;
BEGIN
n_val := to_number(p_val);
RETURN 1;
EXCEPTION
WHEN OTHERS THEN
RETURN 0;
END;
Function created
testing the table:
SELECT val, fn_isnum(MyValue ) isnum
FROM t_values;
VAL ISNUM
Merced 0
Pixie 0
452 1
Now the function that is called in the passthrough query:
create or replace function fn_testvalues
return sys_refcursor is
rc sys_refcursor;
begin
open rc for
Select t_values.*, fn_isnum(MyValue) IsNum from t_values;
return(rc);
end fn_testvalues;

lecaro wrote:
OK. But obviously there is some oracle object that one can call via an Access pass-through query which returns rows?Just to clarify. You could fetch data in Access from an Oracle function that returns a ref cursor using VBA editor. To use a pass-through query Oracle function should be a table function or pipelined table function:
CREATE OR REPLACE
TYPE testvalues_obj_type
    AS OBJECT(
              val varchar2(10),
              isnum number
CREATE OR REPLACE
TYPE testvalues_tbl_type
    AS TABLE OF testvalues_obj_type
CREATE OR REPLACE
FUNCTION fn_testvalues
    RETURN testvalues_tbl_type
    PIPELINED
    IS
        CURSOR testvalues_cur
          IS
            SELECT testvalues_obj_type(MyValue,fn_isnum(MyValue)) testvalues_obj
              FROM t_values;
    BEGIN
        FOR v_rec IN testvalues_cur LOOP
          PIPE ROW(v_rec.testvalues_obj);
        END LOOP;
        RETURN;
END;
/To test it in Oracle:
SELECT *
FROM TABLE(fn_testvalues)
VAL             ISNUM
Merced              0
Pixie               0
452                 1
SQL> Now in Access pass-trough query window enter:
SELECT *
FROM TABLE(fn_testvalues);SY.

Toplink JPA Calling Oracle Function Return sys_refcursor

I have a function which return sys_refcursor and I am trying to call this using JPA(1.0)
@NamedNativeQuery( name = "getEmpsByDeptId"
        , query = "{ ? = call my_pck.getEmployees(:longName)}"
        , resultClass = Employee.class
        , hints = { @QueryHint(name = "org.hibernate.callable", value = "true")
                       , @QueryHint(name = "org.hibernate.readOnly", value = "true")
DAOImpl
query = getEntityManager().createNamedQuery("getEmpsByDeptId");
query.setParameter("longName", "SCOTT");
list = (List<Employee>)query.getResultList();
However when I execute, I am getting the following exception
Exception [TOPLINK-6132] (Oracle TopLink Essentials - 2.1 (Build b52-fcs (09/24/2008))):
oracle.toplink.essentials.exceptions.QueryException Exception Description:
Query argument 2 not found in list of parameters provided during query execution.
Query: ReadAllQuery(test.entity.Employee) at oracle.toplink.essentials.exceptions.QueryException.namedArgumentNotFoundInQueryParameters
I have tried using
call my_pck.getEmployees(?)}"
and
query.setParameter(1, "SCOTT");
However error remains the same and how can I resolve this issue?
I have used the same function with Hibernate using JPA2.0 and it has worked.
Thank

lecaro wrote:
OK. But obviously there is some oracle object that one can call via an Access pass-through query which returns rows?Just to clarify. You could fetch data in Access from an Oracle function that returns a ref cursor using VBA editor. To use a pass-through query Oracle function should be a table function or pipelined table function:
CREATE OR REPLACE
TYPE testvalues_obj_type
    AS OBJECT(
              val varchar2(10),
              isnum number
CREATE OR REPLACE
TYPE testvalues_tbl_type
    AS TABLE OF testvalues_obj_type
CREATE OR REPLACE
FUNCTION fn_testvalues
    RETURN testvalues_tbl_type
    PIPELINED
    IS
        CURSOR testvalues_cur
          IS
            SELECT testvalues_obj_type(MyValue,fn_isnum(MyValue)) testvalues_obj
              FROM t_values;
    BEGIN
        FOR v_rec IN testvalues_cur LOOP
          PIPE ROW(v_rec.testvalues_obj);
        END LOOP;
        RETURN;
END;
/To test it in Oracle:
SELECT *
FROM TABLE(fn_testvalues)
VAL             ISNUM
Merced              0
Pixie               0
452                 1
SQL> Now in Access pass-trough query window enter:
SELECT *
FROM TABLE(fn_testvalues);SY.

Trying to fetch a value in a java function and returning the array.

hello....I am trying to fetch a value in a java function and returning a array......I already write the pl/sql function which is working fine....but i think i m lost......when i run it through the jsp it shows me error........pls help
java code:=
public String [] viewx(String bid) throws SQLException, Exception {
String [] values;
try {
CallableStatement cstmt = null;
String SQL = "{?=call vi_dis.v_dis(?)}";
cstmt = con.prepareCall(SQL);
cstmt.registerOutParameter(1,Types.ARRAY);
cstmt.setString(2, bid);
cstmt.execute();
Array simpleArray = cstmt.getArray(1);
values = (String [])simpleArray.getArray();
cstmt.close();
} catch (SQLException sqle) {
error = "SQLException: Could not execute the query.";
throw new SQLException(error);
} catch (Exception e) {
error = "An exception occured while retrieving emp.";
throw new Exception(error);
return values;
pl/sql function
create or replace package vi_dis
as
function v_dis(vbid IN student.bid%type) return stuarray ;
end;
create or replace
package body vi_dis
as
function v_dis(vbid IN student.bid%type) return stuarray
is
l_stu stUarray :=stuarray();
cursor c_sel
is
SELECT CNAME
FROM COURSE C,ENROLL E
WHERE C.CID=E.CID
AND E.BID=vbid;
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OPEN c_sel;
FETCH c_sel BULK COLLECT INTO l_stu;
l_stu.extend;
CLOSE c_sel;
RETURN l_stu;
EXCEPTION
WHEN NO_DATA_FOUND
THEN DBMS_OUTPUT.PUT_LINE('NO RESULT AVAILABLE');
CLOSE c_sel;
END;
END;
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BalusC wrote:
It is comparing the selected value against the List<SelectItem> returned by getSetoresOrigem() as it is during the apply request values phase of the form submit request.Ok. That's what I supposed JSF was doing.
BalusC wrote:
If the selected value isn't in there, then you will get this error.I can understand this, but is this right? As I said, the old value isn't really there because I changed the list values to new ones. But the new value (the value of fSetorOrigem ) corresponds to a value that exist in the new list items, so a valid value. So JSF is not considering that I also changed the list, not just the value. It is comparing the new value with the old list, not the new one. Acting like this JSF is making the page looks like a static HTML page, not a dynamic one. If I can't change the list and the value, what's the point of that? In my point of view I'm not doing anything wrong, I'm not violating any JSF rules.
Marcos

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Hi,
I am trying to call oracle export and import utilites in my java application,
can anyone help me that how can i do this, plz consider the case as this is a part of my project..
Regards
Ashish

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http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html
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Help - Oracle function w/RETURN VIEW_NAME%ROWTYPE

I have a fairly complex Oracle function with a signature like this:
FUNCTION get_some_data
in_param_one VARCHAR2
, in_param_two VARCHAR2
)RETURN VIEW_NAME%ROWTYPE
(The internal logic of the function is such that it will return at most one row.)
I have sample code from MSDN that outlines calling functions in .Net, like this:
// create the command for the function
OracleCommand cmd = new OracleCommand();
cmd.Connection = conn;
cmd.CommandText = "GET_EMPLOYEE_EMAIL";
cmd.CommandType = CommandType.StoredProcedure;
// add the parameters, including the return parameter to retrieve
// the return value
cmd.Parameters.Add("p_employee_id", OracleType.Number).Value = 101;
cmd.Parameters.Add("p_email", OracleType.VarChar, 25).Direction =
ParameterDirection.ReturnValue;
// execute the function
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
// output the result
Console.WriteLine("Email address is: " + cmd.Parameters["p_email"].Value);
I don't see an available OracleType to fit the '...%ROWTYPE' return value.
I think the Oracle code is doing inferred 'table inlining' but it may, instead, be using an inferred refcursor (clearly I'm no DBA). Everything I've been able to find online when googling for how to handle this in .Net doesn't seem to match this situation.
How can I call this function and get the data back in C#? Please note that I don't have the authority to modify the package to make it explicitly return a refcursor.
Thank you for any light you can shed!
MarFarMa

Here's a "quick and dirty" example using the HR sample schema that I think might be enough to get you going...
Pl/SQL (used to mimic your function that returns %rowtype):
create or replace function get_country_row (p_id in varchar2) return countries%rowtype as
cursor emp_cur is select * from countries where country_id = p_id;
emp_rec emp_cur%rowtype;
begin
open emp_cur;
fetch emp_cur into emp_rec;
close emp_cur;
return emp_rec;
end;C# Code:
using System;
using System.Data;
using System.Text;
using Oracle.DataAccess.Client;
using Oracle.DataAccess.Types;
namespace RowTypeTest
/// <summary>
/// Summary description for Class1.
/// </summary>
class Class1
    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
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      con.Open();
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      sbSQL.Append("declare ");
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      sbSQL.Append(" :p_country_name := l_country_row.country_name; ");
      sbSQL.Append(" :p_region_id    := l_country_row.region_id; ");
      sbSQL.Append("end;");
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      OracleParameter p_id = new OracleParameter();
      p_id.OracleDbType = OracleDbType.Varchar2;
      p_id.Size = 2;
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      // this is redundant but we are selecting * from the table...
      OracleParameter p_country_id = new OracleParameter();
      p_country_id.OracleDbType = OracleDbType.Varchar2;
      p_country_id.Size = 2;
      p_country_id.Direction = ParameterDirection.InputOutput;
      // input/output parameter for country name
      OracleParameter p_country_name = new OracleParameter();
      p_country_name.OracleDbType = OracleDbType.Varchar2;
      p_country_name.Size = 40;
      p_country_name.Direction = ParameterDirection.InputOutput;
      // input/output parameter for region id
      OracleParameter p_region_id = new OracleParameter();
      p_region_id.OracleDbType = OracleDbType.Decimal;
      p_region_id.Direction = ParameterDirection.InputOutput;
      // create command object
      OracleCommand cmd = con.CreateCommand();
      cmd.CommandText = sbSQL.ToString();
      // add parameters to command
      cmd.Parameters.Add(p_id);
      cmd.Parameters.Add(p_country_id);
      cmd.Parameters.Add(p_country_name);
      cmd.Parameters.Add(p_region_id);
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      cmd.ExecuteNonQuery();
      // display data retrieved
      Console.WriteLine("{0}, {1}, {2}", p_country_id.Value, p_country_name.Value, p_region_id.Value);
      // clean up objects
      p_region_id.Dispose();
      p_country_name.Dispose();
      p_country_id.Dispose();
      p_id.Dispose();
      cmd.Dispose();
      con.Dispose();
}Output:
UK, United Kingdom, 1This only works if the stored function returns a single row and obviously has no error handling, etc. but I hope it helps a bit...
- Mark

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I have a class named test_class implemented as
package
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Then I call the function in my actionscript main function like this :
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After a long trip to Alchemy possibilities and a lot of tests I have finally found a solution to my question.
Instead of using AS3ArrayValue to get my objet, I use the AS3 function shift on the args array to get my object. Here is how I do
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Maybe there is a bug in the AS3ValType getter.

How to call package function and procedure by PL/SQL

Dear all,
I created a package and I want test it by a select statement. e.g. select packagename.function(1, 'A') . However, there is an error message. "ORA-14551: cannot perform a DML operation inside a query ".
In the package, there is a function and I passed two parameters to the function and return a number. These two parameters will be used in the cursor select statment. Is there sth wrong that I use the cursor with the parameters? What can I do then?
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Remark: I am using Oracle 8i.
Thanks for advance!!
Regrads.

Hi!
I don't know why it is not running in ur computer. Pls check the script --
SQL> ed
Wrote file afiedt.buf
1 create or replace package pack_test
2 is
3    function try_test(eno in number,depno in number)
4    return number;
5* end;
SQL> /
Package created.
SQL> create or replace package body pack_test
2 is
3    function try_test(eno in number,depno in number)
4    return number
5    is
6      saln number(10);
7    begin
8      select sal
9   into saln
10   from emp
11   where empno = eno
12   and deptno = depno;
13
14   return saln;
15    end;
16 end pack_test;
17 /
Package body created.
SQL>
SQL> select pack_test.try_test(7777,30) from dual;
PACK_TEST.TRY_TEST(7777,30)
                       3456-it is working fine in my system.
Regards.
Satyaki De.

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When exporting html and viewing locally we receive the following error... This error disappears after removing menu from top of page. This error does not occur when viewed on Outdoors360.businesscatalyst.com (our temporary site)
Muse JS Assert: Error calling selector function:Type error: Object has no method Muse Menu
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I fix the problem.
I have carefully reviewed JAVASCRIPT files and I could see that these are not a major influence within the site, only are reference code and utilities of the same application.
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DELETE IT
FRANCISCO CATALDO DISEÑADOR GRÁFICO

Can we call custom functions in view objects?

Can we call custom functions in view objects?these custom functions are from my backing bean...
Please help.....

User,
You can certainly add code to your view objects to do whatever you like.
However, it would be considered a very bad practice to call something in the backing bean from your view object. It violates the whole MVC design principle of ADF.
Perhaps if you can share your real use case, someone will give you ideas about the best way to do it, but I, for one, would advise you to forget about calling a backing bean function from your view object.
Best,
John

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Any one use java call oracle ERP stored procdure?
Example I want ues java call below stored, it can work , but in Oracle ERP have error : "APP-MRP-22130: Cannot connect to database
Cause: The current routine cannot connect to the database.
Action: Contact your system administrator or customer support representative.
CREATE OR REPLACE procedure XXBOM_ITEM_IMPORT
is
x number;
begin
fnd_global.apps_initialize
(1070, /*i_user_id*/
20634, /*i_responsibility_id*/
401 /*i_application_id*/
/* import item */
x := fnd_request.submit_request(
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argument1 => 141,
argument2 => 1,
argument3 => 1,
argument4 => 1,
argument5 => 1
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Note 164701.1 in metalink may be relevant.

JAVA Calling Oracle Function and Returning OBJECT

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