How to call functions that return package local types?

Hi everyone, I have a Pl/Sql function in a package that returns a package-local type.
I would like to call this function from Java, but I don't know what to pass to "statement.registerOutParameter()"
(it gives this error:
Unable to resolve type: "XDRIVE_B2B.TEST1.MYTYPE)
Here's the simple version with one package:
package TESTPKG IS
TYPE MYTYPE IS VARRAY(1) OF INTEGER;
FUNCTION FCT2 RETURN MYTYPE;
end;
package body testpkg IS
FUNCTION FCT2 RETURN MYTYPE IS
BEGIN
RETURN mytype(55);
END;
end;
and here's the java code:
void javatest(OracleConnection conn)
throws SQLException
String sql = "{ call ? = testpkg.fct2() }";
OracleCallableStatement st =
(OracleCallableStatement) conn.prepareCall(sql);
st.registerOutParameter(1, OracleTypes.ARRAY, "MYUSERNAME.TESTPKG.MYTYPE");
st.execute();
and as I said above, the java code fails with:
java.sql.SQLException: Fail to construct descriptor: Unable to resolve type: "MYUSERNAME.TEST1.MYTYPE"
I can't really have this type live outside of a package because in the real case, it's not a VARRAY(1) of integer, it's a VARRAY(1) of MYTABLE%ROWTYPE, which only seems to compile inside a package.
thanks for any opinions,
george moudry
null

JDBC, JPublisher, and SQLJ do not support PL/SQL-only types. This includes PL/SQL index tables and record types.

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How to call function which return and out

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FUNCTION GetGoogleScholarActivation (
pi_clnt_id IN google_scholar_status.clnt_id%TYPE,
pi_status_type IN ci_status_type_tab_type,
po_status OUT ci_status_tab_type,
po_date OUT ci_date_tab_type
RETURN NUMBER ;
where type is
TYPE ci_status_type_tab_type IS TABLE OF VARCHAR2 (1) INDEX BY BINARY_INTEGER;
TYPE ci_status_tab_type IS TABLE OF VARCHAR2 (10) INDEX BY BINARY_INTEGER;
TYPE ci_date_tab_type IS TABLE OF VARCHAR2 (8) INDEX BY BINARY_INTEGER;
I am trying to call function in SQL PLUS for testing as
declare
var number ( 10);
TYPE p_st1 IS TABLE OF VARCHAR2 (1) INDEX BY BINARY_INTEGER;
p_st p_st1 ;
type p_status1 IS TABLE OF VARCHAR2 (1) INDEX BY BINARY_INTEGER;
p_status p_status1 ;
TYPE p_date1 IS TABLE OF VARCHAR2 (8) INDEX BY BINARY_INTEGER;
p_date p_date1 ;
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dbms_output.put_line ('Activation_status '|| p_status(0) );
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but getting error PLS-00306: wrong number or types of arguments in call to
'GETGOOGLESCHOLARACTIVATION'
so how to test from SQL Plus

HI
I tried to execute below like this
declare
var number ( 10);
p_st ci_status_type_tab_type ;
p_status ci_status_tab_type;
p_date ci_date_tab_type;
Begin
p_st(0) := 'A';
var := PQDKGOSH.GetGoogleScholarActivation(11920 , p_st, p_status ,p_date );
dbms_output.put_line ('Activation_status '|| p_status(0) );
dbms_output.put_line ('Activation_date '|| p_date(0) );
dbms_output.put_line ('Retun Value'|| var );
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still iget error
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and i am trying to execute the function .

Stored PL/SQL function that returns REF CURSOR type

Hello everyone,
I've come through the following problem:
1.- I created an PL/SQL stored procedure which returns a REF CURSOR element, definition looks like this:
PACKAGE PKG_LISTADOS AS
TYPE tuplas IS REF CURSOR;
/* Procedimientos exportados por el paquete */
PROCEDURE inicializarModuloListados;
FUNCTION recaudacionUltimoMes(medioPago DEF_MEDIO_PAGO.MEDIO_PAGO%TYPE)
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2.- Now I would like to call the stored procedure and retrieve the PL/SQL cursor as a ResultSet Java Object. The code I wrote is this:
Connection conn;
XmlDocument paramDef;
conn=poolMgr.getConnection str_poolDBConnection);
try
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cstmt.setString(2, "MONEDA");
cstmt.executeQuery();
ResultSet rs=(ResultSet)cstmt.getObject(1);
catch(SQLException sqlE)
3.- However, I can't make it OK, all the time I get the following error:
SQL Error(17004), java.sql.SQLException: Non valid column type
May anyone help me with this, thanks in advance:
Miguel-Angel

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by angelrip:
Hello everyone,
I've come through the following problem:
1.- I created an PL/SQL stored procedure which returns a REF CURSOR element, definition looks like this:
PACKAGE PKG_LISTADOS AS
TYPE tuplas IS REF CURSOR;
/* Procedimientos exportados por el paquete */
PROCEDURE inicializarModuloListados;
FUNCTION recaudacionUltimoMes(medioPago DEF_MEDIO_PAGO.MEDIO_PAGO%TYPE)
RETURN tuplas;
2.- Now I would like to call the stored procedure and retrieve the PL/SQL cursor as a ResultSet Java Object. The code I wrote is this:
Connection conn;
XmlDocument paramDef;
conn=poolMgr.getConnection str_poolDBConnection);
try
CallableStatement cstmt=conn.prepareCall("{?=call PKG_LISTADOS.recaudacionUltimoMes(?)}");
cstmt.registerOutParameter(1, java.sql.Types.OTHER);
cstmt.setString(2, "MONEDA");
cstmt.executeQuery();
ResultSet rs=(ResultSet)cstmt.getObject(1);
catch(SQLException sqlE)
3.- However, I can't make it OK, all the time I get the following error:
SQL Error(17004), java.sql.SQLException: Non valid column type
May anyone help me with this, thanks in advance:
Miguel-Angel<HR></BLOCKQUOTE>
Do something like the following:
cstmt = conn.prepareCall("{call customer_proc(?, ?)}");
//Set the first parameter
cstmt.setInt(1, 40);
//Register to get the Cursor parameter back from the procedure
cstmt.registerOutParameter(2, OracleTypes.CURSOR);
cstmt.execute();
ResultSet cursor = ((OracleCallableStatement)cstmt).getCursor(2);
while(cursor.next())
System.out.println("CUSTOMER NAME: " + cursor.getString(1));
System.out.println("CUSTOMER AGE: " + cursor.getInt(2));
cursor.close();
null

How to call function which has input parameter type??

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Example...
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begin
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loop
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return vResult;
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                    10

SOLVED: How can I use or call a function that returns %ROWTYPE?

Hi
edit: you can probably skip all this guff and go straight to the bottom...In the end this is probably just a question of how to use a function that returns a %rowtype. Thanks.
Currently reading Feuerstein's tome, 5th ed. I've downloaded and run the file genaa.sp, which is a code generator. Specifically, you feed it a table name and it generates code (package header and package body) that will create a cache of the specified table's contents.
So, I ran:
HR@XE> @"C:\Documents and Settings\Jason\My Documents\Work\SQL\OPP5.WEB.CODE\OPP5.WEB.CODE\genaa.sp"
749 /
Procedure created.
HR@XE> exec genaa('EMPLOYEES');which generated a nice bunch of code, viz:
create or replace package EMPLOYEES_cache is
    function onerow ( EMPLOYEE_ID_in IN HR.EMPLOYEES.EMPLOYEE_ID%TYPE) return HR.EMPLOYEES%ROWTYPE;
    function onerow_by_EMP_EMAIL_UK (EMAIL_in IN HR.EMPLOYEES.EMAIL%TYPE) return HR.EMPLOYEES%ROWTYPE;
    procedure test;
end EMPLOYEES_cache;
create or replace package body EMPLOYEES_cache is
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    EMP_EMP_ID_PK_aa EMPLOYEES_aat;
    TYPE EMP_EMAIL_UK_aat IS TABLE OF HR.EMPLOYEES.EMPLOYEE_ID%TYPE INDEX BY HR.EMPLOYEES.EMAIL%TYPE;
    EMP_EMAIL_UK_aa EMP_EMAIL_UK_aat;
    function onerow ( EMPLOYEE_ID_in IN HR.EMPLOYEES.EMPLOYEE_ID%TYPE)
        return HR.EMPLOYEES%ROWTYPE is
        begin
            return EMP_EMP_ID_PK_aa (EMPLOYEE_ID_in);
        end;
    function onerow_by_EMP_EMAIL_UK (EMAIL_in IN HR.EMPLOYEES.EMAIL%TYPE)
        return HR.EMPLOYEES%ROWTYPE is
        begin
            return EMP_EMP_ID_PK_aa (EMP_EMAIL_UK_aa (EMAIL_in));
        end;
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        begin
            FOR rec IN (SELECT * FROM HR.EMPLOYEES)
            LOOP
                EMP_EMP_ID_PK_aa(rec.EMPLOYEE_ID) := rec;
                EMP_EMAIL_UK_aa(rec.EMAIL) := rec.EMPLOYEE_ID;
            end loop;
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        pky_rec HR.EMPLOYEES%ROWTYPE;
        EMP_EMAIL_UK_aa_rec HR.EMPLOYEES%ROWTYPE;
        begin
            for rec in (select * from HR.EMPLOYEES) loop
                pky_rec := onerow (rec.EMPLOYEE_ID);
                EMP_EMAIL_UK_aa_rec := onerow_by_EMP_EMAIL_UK (rec.EMAIL);
                if rec.EMPLOYEE_ID = EMP_EMAIL_UK_aa_rec.EMPLOYEE_ID then
                    dbms_output.put_line ('EMP_EMAIL_UK lookup OK');
                else
                    dbms_output.put_line ('EMP_EMAIL_UK lookup NOT OK');
                end if;
            end loop;
        end test;
    BEGIN
        load_arrays;
    end EMPLOYEES_cache;
/which I have run successfully:
HR@XE> @"C:\Documents and Settings\Jason\My Documents\Work\SQL\EMPLOYEES_CACHE.sql"
Package created.
Package body created.I am now trying to use the functionality within the package.
I have figured out that the section
    BEGIN
        load_arrays;
    end EMPLOYEES_cache;
/is the initialization section, and my understanding is that this is supposed to run when any of the package variables or functions are referenced. Is that correct?
With that in mind, I'm trying to call the onerow() function, but it's not working:
HR@XE> select onerow(100) from dual;
select onerow(100) from dual
ERROR at line 1:
ORA-00904: "ONEROW": invalid identifier
HR@XE> select employees_cache.onerow(100) from dual;
select employees_cache.onerow(100) from dual
ERROR at line 1:
ORA-06553: PLS-801: internal error [55018]
HR@XE> select table(employees_cache.onerow(100)) from dual;
select table(employees_cache.onerow(100)) from dual
ERROR at line 1:
ORA-00936: missing expressionHe provides the code genaa.sp, and a very brief description of what it does, but doesn't tell us how to run the generated code!
Now, I have just done some googling, and it seems that what I am trying to do isn't possible. Apparently %ROWTYPE is PL/SQL, and not understood by SQL, so you can't call onerow() from sql. Correct?
So I try wrapping the call in an exec:
HR@XE> exec select employees_cache.onerow(100) from dual;
BEGIN select employees_cache.onerow(100) from dual; END;
ERROR at line 1:
ORA-06550: line 1, column 30:
PLS-00382: expression is of wrong type
ORA-06550: line 1, column 7:
PLS-00428: an INTO clause is expected in this SELECT statement
HR@XE> exec select table(employees_cache.onerow(100)) from dual;
BEGIN select table(employees_cache.onerow(100)) from dual; END;
ERROR at line 1:
ORA-06550: line 1, column 14:
PL/SQL: ORA-00936: missing expression
ORA-06550: line 1, column 7:
PL/SQL: SQL Statement ignored
HR@XE> exec employees_cache.onerow(100)
BEGIN employees_cache.onerow(100); END;
ERROR at line 1:
ORA-06550: line 1, column 7:
PLS-00221: 'ONEROW' is not a procedure or is undefined
ORA-06550: line 1, column 7:
PL/SQL: Statement ignoredNo joy.
Of course, now that I'm looking at it again, it seems that the way to go is indicated by the first error:
PLS-00428: an INTO clause is expected in this SELECT statement
So am I supposed to create a type of EMPLOYEES%ROWTYPE in a PL/SQL procedure, and the idea of this code, is that the first call to onerow() runs the initialiation code, which populates the cache, and all subsequent calls to onerow() (whether by my session or any other) will use the cache?
I've had a stab at this, but still, no joy:
create or replace procedure testcache is
    emp employees%rowtype;
    begin
        select employees_cache.onerow(100) from dual into emp;
        dbms_output.put_line('Emp id: ' || emp.employee_id);
    end testcache;
show errors
HR@XE> @testcache.sql
Warning: Procedure created with compilation errors.
Errors for PROCEDURE TESTCACHE:
LINE/COL ERROR
4/9      PL/SQL: SQL Statement ignored
4/54     PL/SQL: ORA-00933: SQL command not properly ended
HR@XE>Have a feeling this should be really easy. Can anybody help?
Many thanks in advance.
Jason
Edited by: 942375 on 08-Feb-2013 11:45

>
Ha, figured it out
>
Hopefully you also figured out that the example is just that: a technical example of how to use certain Oracle functionality. Unfortunately it is also an example of what you should NOT do in an actual application.
That code isn't scaleable, uses expensive PGA memory, has no limit on the amount of memory that might be used and, contrary to your belief will result in EVERY SESSION HAVING ITS OWN CACHE of exactly the same data if the session even touches that package.
Mr. Feuerstein is an expert in SQL and PL/SQL and his books cover virtually all of the functionality available. He also does an excellent job of providing examples to illustrate how that functionality can be combined and used. But the bulk of those examples are intended solely to illustrate the 'technical' aspects of the technology. They do not necessarily reflect best practices and they often do not address performance or other issues that need to be considered when actually using those techniques in a particular application. The examples show WHAT can be done but not necessarily WHEN or even IF a given technique should be used.
It is up to the reader to learn the advantages and disadvantages of each technicalogical piece and determine when and how to use them.
>
Now, I have just done some googling, and it seems that what I am trying to do isn't possible. Apparently %ROWTYPE is PL/SQL, and not understood by SQL, so you can't call onerow() from sql. Correct?
>
That is correct. To be used by SQL you would need to create SQL types using the CREATE TYPE syntax. Currently that syntax does not support anything similar to %ROWTYPE.
>
So am I supposed to create a type of EMPLOYEES%ROWTYPE in a PL/SQL procedure, and the idea of this code, is that the first call to onerow() runs the initialiation code, which populates the cache, and all subsequent calls to onerow() (whether by my session or any other) will use the cache?
>
NO! That is a common misconception. Each session has its own set of package variables. Any session that touches that package will cause the entire EMPLOYEES table to be queried and stored in a new associative array specifically for that session.
That duplicates the cache for each session using the package. So while there might be some marginal benefit for a single session to cache data like that the benefit usually disappears if multiple sessions are involved.
The main use case that I am aware of where such caching has benefit is during ETL processing of staged data when the processing of each record is too complex to be done in SQL and the records need to be BULK loaded and the data manipulated in a loop. Then using an associative array as a lookup table to quickly get a small amount of data can be effective. And if the ETL procedure is being processed in parallel (meaning different sessions) then for a small lookup array the additional memory use is tolerable.
Mitigating against that is the fact that:
1. Such frequently used data that you might store in the array is likely to be cached by Oracle in the buffer cache anyway
2. Newer versions of Oracle now have more than one cache
3. The SQL query needed to get the data from the table will use a bind variable that eliminates repeated hard parsing.
4. The cursor and the buffer caches ARE SHARED by multiple sessions globally.
So the short story is that there would rarely be a use case where ARRAYs like that would be preferred over accessing the data from the table.

Memory leak in JCO when calling an ABAP-function that returns larg tables

Hello everybody,
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Here a simple JUnit test:
http://pastebin.ca/1420451
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http://pastebin.ca/1420472
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Hi,
Check Below links
1) How To Analyze Performance Problems JCO
https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/3fbea790-0201-0010-6481-8370ebc3c17d
2) How to Avoid Memory Leaks
https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/c3e598fe-0601-0010-e990-b8622840c8c2
Salil...
Edited by: salil chavan on Jun 2, 2009 5:21 AM

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> Hi,
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>
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>
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<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by angelrip:
Hello everyone,
I've come through the following problem:
1.- I created an PL/SQL stored procedure which returns a REF CURSOR element, definition looks like this:
PACKAGE PKG_LISTADOS AS
TYPE tuplas IS REF CURSOR;
/* Procedimientos exportados por el paquete */
PROCEDURE inicializarModuloListados;
FUNCTION recaudacionUltimoMes(medioPago DEF_MEDIO_PAGO.MEDIO_PAGO%TYPE)
RETURN tuplas;
2.- Now I would like to call the stored procedure and retrieve the PL/SQL cursor as a ResultSet Java Object. The code I wrote is this:
Connection conn;
XmlDocument paramDef;
conn=poolMgr.getConnection str_poolDBConnection);
try
CallableStatement cstmt=conn.prepareCall("{?=call PKG_LISTADOS.recaudacionUltimoMes(?)}");
cstmt.registerOutParameter(1, java.sql.Types.OTHER);
cstmt.setString(2, "MONEDA");
cstmt.executeQuery();
ResultSet rs=(ResultSet)cstmt.getObject(1);
catch(SQLException sqlE)
3.- However, I can't make it OK, all the time I get the following error:
SQL Error(17004), java.sql.SQLException: Non valid column type
May anyone help me with this, thanks in advance:
Miguel-Angel<HR></BLOCKQUOTE>
Do something like the following:
cstmt = conn.prepareCall("{call customer_proc(?, ?)}");
//Set the first parameter
cstmt.setInt(1, 40);
//Register to get the Cursor parameter back from the procedure
cstmt.registerOutParameter(2, OracleTypes.CURSOR);
cstmt.execute();
ResultSet cursor = ((OracleCallableStatement)cstmt).getCursor(2);
while(cursor.next())
System.out.println("CUSTOMER NAME: " + cursor.getString(1));
System.out.println("CUSTOMER AGE: " + cursor.getInt(2));
cursor.close();
null

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Hi,
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I have known function in jar file.
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If you meant something else, you'll need to explain what you meant.

Error with function that returns a rowtype...

i have a function that returns a rowtype. below is a simplified version:
create or replace function "GETC"
return mytable%rowtype
is
rec mytable%rowtype;
begin
rec.rowid := 1;
return rec;
end;
eventually i'll want to call this from java. but for now i'd settle for calling it from the XE web front end (and sqlplus).
SQLPLUS: i try to call it from sqlplus by first declaring a variable where i can store the return:
var a mytable%rowtype;
it instantly stops me saying that i can only declare a var of a particular type. so what do i do?
XE interface: i tried various ways to call getc(), but they were all unsuccessful. what should i be doing?
thanks so much for your time.
marko

Given a function like this:
CREATE OR REPLACE FUNCTION get_employee
     ( p_empno emp.empno%TYPE )
     RETURN emp%ROWTYPE
AS
     v_result emp%ROWTYPE;
BEGIN
     SELECT * INTO v_result
     FROM   emp
     WHERE empno = p_empno;
     RETURN v_result;
END get_employee;You can call it within PL/SQL like this:
DECLARE
     rec emp%ROWTYPE;
BEGIN
     rec := get_employee(7902);
     DBMS_OUTPUT.PUT_LINE(rec.ename);
END;However,
1. Unless there is a column named "ROWID" in the table (unlikely since it would conflict with the actual rowid and is therefore not allowed), the type will not have an attribute named "rowid".
2. "1" would not be a valid rowid anyway.
3. %ROWTYPE defines a PL/SQL type, which will not be recognised in other environments such as SQL and Java.

I get an error when i try to execute a function that returns a date value

Hi,
I'm new in ODP.NET, i'm make a package that contains a function that returns a date i.e.
Package Body General_pkg is
Function Get_Day Return Date is
vd_day date;
Begin
select sysdate into vd_day from dual;
return vd_day;
end Get_Day;
End General_pkg;
i use the next code to execute the function:
OracleCommand cmdData = new OracleCommand("General_pkg.Get_Day", cnx);
cmdData.CommandType = Commandtype.StoredProcedure;
OracleParameter PRM;
PRM = new OracleParameter();
PRM.ParameterName = "VDATE";
PRM.OracleDbType = OracleDbType.Date;
PRM.Direction = ParameterDirection.ReturnValue;
cmdData.Parameters.Add(PRM);
try
cmdData.ExecuteNonQuery();
catch(OracleException e);
When i execute this code, i have and exception, which say "identifier GENERAL_PKG.Get_Day must be declare..."
Obviously the package is correctly created in ORACLE i tested first in sql plus and it works but in ODP.NET they don't recognize the package or the function i don't know... please help!!!

OOOOOPSS.... i forgot that i change the user in my conecction string that's why it didn't work...
i guess i had to much beer last night.;. :)
thanks.

"Calling functions that are in a class based DLL (MFC extention DLL)"

"Calling functions that are in a class based DLL (MFC extention DLL)"
"Calling functions that are in a class based DLL (MFC extention DLL)
I have a DLL written in VC++ using MFC exteintion DLL.
The functions are used to extract information from a hardware card.
eg.:
class AFX_EXT_CLASS WSDevice : public cAsyncSocket
This is a class in a DLL. There are a number of functions in this DLL that we need to call from Labview 5.0
How do we call these functions?
Normally (in VC++ /C++) we ceate a instance of this class like WSDeviceObj and use the function call :
WSDeviceObj.fucntion name
Kindly Help.
Satish Narayana"

You can create a wrapper dll from which you can call your dlls functions.
Guidelines on how to create a dll that can communicate with LabVIEW are provided in the document "Using External Code in LabVIEW", which should be included with LabVIEW. You can download the document also from www.ni.com at:
http://digital.ni.com/manuals.nsf/web_productcurrent/4F1447F7CD83D6D88625690D00637CED?OpenDocument
Regards;
Vargas
www.vartortech.com

How to call functions that return package local types?

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