Ref cursor based on join or nested select is empty

Hi ,
We have a Stored procedure which returns 27 ref cursors.
We are populating this data into a suitable data set using OracleDataAdapter (.fill).
Refcursors that the data they hold is from a join or nested select are result empty.
The other refcursors are fine.
If running the stored procedure in the database (from another SP for instance) all refcursors are full of data.
Can someone direct me for a solution or even working work around ?
Thanks

Hi Again ,
No, The cursors are not any of group by with some aggregations of any sort. Just plain and simple joins or nested queries (Select... from ... where ... in (select ...). Some of the data is taken from temporary tables.
For the last question i am using the production ODP with the last oraMTS.
This problem is really stopping us from going to production in early march ....
A possible work around we thought about (but cost dearly ...) is to fill the data from the tables into a temporary one and then base the cursor on a query on this table. This workaround can last only a few weeks at the customer.
Regards

Similar Messages

Sorting records dynamically in REF cursor, based upon a dynamic field

Hi,
I have a REF CURSOR built by using row type, table type and PIPELINE function. I have opened the ref cursor now. I would like to update a field called 'RANK' based upon 'RATIO' field in the REF CURSOR. i.e order the records in the ref cursor by RATIO field and then update the RANK as 1, 2, 3, 4, ....
Aim: I want to update a field in the REF CURSOR based upon another numeric field.
Please help me.
OPEN sales FOR
SELECT RANK, ratio
FROM TABLE (fngetfundholdingsale (in_primarykey, in_flag));
loop
fetch sales into sale1;
exit when sales%notfound;
--I want to update sale1.rank based upon ratio
end loop;
Thanks
Ashok

Try to use NDS (Native Dynamic SQL):
l_order := 'ratio';
OPEN sales FOR
'SELECT rank' ||
' FROM TABLE (fngetfundholdingsale (:in_primarykey, :in_flag))' ||
' ORDER BY ' || l_order
USING in_primarykey, in_flag;Regards,
Zlatko

REF CURSOR problem .. function call from select

Hello,
I am still on the search for a way to call a function from with in a select statement.
I've done it in SQL*Plus like this and it works.
SELECT name, f_format(name) FROM user WHERE id = 12;
This returns first the unformatted (raw) version of the stored value for name and then the formmtted version of the stored value of name.
Since multiple names will be returned I need to user a REF CURSOR (cursor variable). The above select statement does not work from within the OPEN . .FOR clause necessary for a REF CURSOR.
What can I do instead? My goal is to return multiple records of formatted names.
null

I have declared the reference cursor as a weak one. Thank you for clarifying that though. I was wondering if it made a difference. Here is a simple package that shows you what I am trying to do. I will include the errors at the bottom. Please have a look and let me know what you think is wrong.
/*--------- PL/SQL ------------*/
CREATE OR REPLACE PACKAGE test_refcur AS
PROCEDURE decrypt (
i_string IN VARCHAR2
,o_string OUT VARCHAR2
TYPE PwdCurTyp IS REF CURSOR;
PROCEDURE get_pwd_info (
i_user_id IN NUMBER
,io_pwd_cv IN OUT PwdCurTyp
END test_refcur;
CREATE OR REPLACE PACKAGE BODY test_refcur AS
FUNCTION f_decrypt (
i_string IN VARCHAR2
) RETURN VARCHAR2 IS
l_string VARCHAR2(64);
l_string_dec VARCHAR2(32);
BEGIN
l_string := i_string;
dbms_obfuscation_toolkit.DESDecrypt(
input_string => l_string
,key_string =>'12345678'
,decrypted_string=> l_string_dec );
RETURN l_string_dec;
END f_decrypt;
PROCEDURE decrypt (
i_string IN VARCHAR2
,o_string OUT VARCHAR2
) IS
BEGIN
o_string := f_decrypt(i_string);
END decrypt;
PROCEDURE get_pwd_info (
i_user_id IN NUMBER
,io_pwd_cv IN OUT PwdCurTyp
) IS
BEGIN
OPEN io_pwd_cv FOR
SELECT
label
,f_decrypt(user_name_text) AS dec_user_name
,f_decrypt(text) AS dec_pwd
FROM
code_pwd
WHERE
id = i_user_id;
END get_pwd_info;
END test_refcur;
/*--------- SQL*Plus -----------*/
Warning: Package Body created with compilation errors.
SHOW ERRORSErrors for PACKAGE BODY TEST_REFCUR:
LINE/COL ERROR
28/13 PL/SQL: SQL Statement ignored
30/18 PLS-00231: function 'F_DECRYPT' may not be used in SQL
Then I made the SELECT statement dynamic.
OPEN io_pwd_cv FOR
'SELECT label, f_decrypt(user_name_text) AS dec_user_name, f_decrypt(text) AS dec_pwd FROM code_pwd WHERE id = i_user_id';
It compiled fine.
Package body created.
So then I tried to do the following. .
SET AUTOPRINT ON
SET SERVEROUTPUT ON
VARIABLE cv REFCURSOR
EXECUTE test_refcur.get_pwd_info(18, :cv)begin test_refcur.get_pwd_info(18, :cv); end;
ERROR at line 1:
ORA-00904: invalid column name
ORA-06512: at "K.TEST_REFCUR", line 27
ORA-06512: at line 1
If I change the SELECT statement to the following, this is what I get. .
OPEN io_pwd_cv FOR
SELECT label
-- ,f_decrypt(user_name_text) AS dec_user_name
-- ,f_decrypt(text) AS dec_pwd
FROM code_pwd
WHERE id = i_user_id;
SET AUTOPRINT ON
SET SERVEROUTPUT ON
VARIABLE cv REFCURSOR
EXECUTE test_refcur.get_pwd_info(18, :cv)PL/SQL procedure successfully completed.
LABEL
Development Server
That tells me that at least something is working. How can I get everything else to work?

Ref cursor and dynamic sql

Hi..
I'm using a ref cursor query to fetch data for a report and works just fine. However i need to use dynamic sql in the query because the columns used in the where condition and for some calculations may change dynamically according to user input from the form that launches the report..
Ideally the query should look like this:
select
a,b,c
from table
where :x = something
and :y = something
and (abs(:x/:y........)
The user should be able to switch between :x and :y
Is there a way to embed dynamic sql in a ref cursor query in Reports 6i?
Reports 6i
Forms 6i
Windows 2000 PRO

Hello Nicola,
You can parameterize your ref cursor by putting the query's select statement in a procedure/function (defined in your report, or in the database), and populating it based on arguments accepted by the procedure.
For example, the following procedure accepts a strongly typed ref cursor and populates it with emp table data based on the value of the 'mydept' input parameter:
Procedure emp_refcursor(emp_data IN OUT emp_rc, mydept number) as
Begin
-- Open emp_data for select all columns from emp where deptno = mydept;
Open emp_data for select * from emp where deptno = mydept;
End;
This procedure/function can then be called from the ref cursor query program unit defined in your report's data model, to return the filled ref cursor to Reports.
Thanks,
The Oracle Reports Team.

Report using ref cursor or dynamic Sql

Hi,
I never create a report using a ref cursor or a dynamic sql. Could any one help me to solve the below issue.
I have 2 tables.
1. Student_Record
2. Student_csv_help
Student_Record the main table where the data is stored.
Student_csv_help will contain the all the column names of the Student_record.
CREATE TABLE Student_CSV_HELP
ENTRY_ID NUMBER,
RAW_NAME VARCHAR2(40 BYTE),
DESC_NAME VARCHAR2(1000 BYTE),
IN_OUTPUT_LIST VARCHAR2(1 BYTE)
SET DEFINE OFF;
Insert into TOA_CSV_HELP
(ENTRY_ID, RAW_NAME, DESC_NAME, IN_OUTPUT_LIST)
Values
(1, 'S_ID', 'Student ID', 'Y');
Insert into TOA_CSV_HELP
(ENTRY_ID, RAW_NAME, DESC_NAME, IN_OUTPUT_LIST)
Values
(2, 'S_Name', 'Student Name', 'Y');
Insert into TOA_CSV_HELP
(ENTRY_ID, RAW_NAME, DESC_NAME, IN_OUTPUT_LIST)
Values
(3, 'S_Join_date', 'Joining Date', 'Y');
Insert into TOA_CSV_HELP
(ENTRY_ID, RAW_NAME, DESC_NAME, IN_OUTPUT_LIST)
Values
(4, 'S_Address', 'Address', 'Y');
Insert into TOA_CSV_HELP
(ENTRY_ID, RAW_NAME, DESC_NAME, IN_OUTPUT_LIST)
Values
(5, 'S_Fee', 'Tution Fee', 'N');
commit;
CREATE TABLE Student_record
S_ID NUMBER,
S_Name VARCHAR2(100 BYTE),
S_Join_date date,
S_Address VARCHAR2(360 BYTE),
S_Fee Number
Insert into Student_record
(S_ID, S_Name, S_Join_date, S_Address,S_Fee)
Values
(101, 'john', TO_DATE('12/17/2009 08:00:00', 'MM/DD/YYYY HH24:MI:SS'), 'CA-94777', 2000);
Insert into Student_record
(S_ID, S_Name, S_Join_date, S_Address,S_Fee)
Values
(102, 'arif', TO_DATE('12/18/2009 08:00:00', 'MM/DD/YYYY HH24:MI:SS'), 'CA-94444', 3000);
Insert into Student_record
(S_ID, S_Name, S_Join_date, S_Address,S_Fee)
Values
(103, 'raj', TO_DATE('12/19/2009 08:00:00', 'MM/DD/YYYY HH24:MI:SS'), 'CA-94555', 2500);
Insert into Student_record
(S_ID, S_Name, S_Join_date, S_Address,S_Fee)
Values
(104, 'singh', TO_DATE('12/20/2009 08:00:00', 'MM/DD/YYYY HH24:MI:SS'), 'CA-94666', 2000);
Commit;
Now my requirement is:
I have a form with Student_record data block. When i Click on print Button on this form. It will open another window which has Student_CSV_HELP.DESC_NAME and a check box before this.
The window look like as below:
check_box       DESC_NAME+
X                   S_ID+
--                   S_Name+
X                   S_Join_date+
X                   S_Address+
--                  S_Fee+
X means check box checked.+
-- means check box Unchecked.+
After i selected these check boxes i will send 2 parameters to the report server
1. a string parameter to the report server which has the value 'S_ID,S_Join_date,S_Address' (p_column_name := 'S_ID,S_Join_date,S_Address');
2. the s_id value from the student_record block (p_S_id := '101');
Now my requirement is when i click on run. I need a report like as below:
Student ID : 101+
Joining Date : 12/17/2009 08:00:00+
Address : CA-94777+
This is nothing but the ref cursor should run like as below:
Select S_id from student_record block S_id = :p_S_id;
Select S_Join_date from student_record block S_id = :p_S_id;
Select S_Address from student_record block S_id = :p_S_id;
So, according to my understanding i have to select the columns at the run time. I dont have much knowledge in creating reports using ref cursor or dynamic sql.
So please help me to solve this issue.
Thanks in advance.

Plain sql should satisfy your need. Try ....
Select S_id, S_Join_date, S_Address
from student_record
where S_id = :p_S_id

Ref Cursor Problem in Oracle Forms 6i

Hi all.
In Oracle Forms 6i, can not I do this?
DECLARE
TYPE CUR_REF IS REF CURSOR;
CUR_PRODUCTS CUR_REF;
VAR_QUERY VARCHAR2(3000) := 'SELECT something FROM table';
BEGIN
OPEN CUR_PRODUCTS FOR VAR_QUERY;
END;
It generates error on opening that it expects a SELECT statement.
How can I open a dynamic ref cursor in Oracle Forms 6i??? The same thing works fine in PL/SQL.
Regards,
Zaaf
Thanks in advance.

It could be like this:
PROCEDURE dynamic_cursor ( PC$Clause IN Varchar2 )
IS
cursor_number EXEC_SQL.CursType;
-- Variables for the data to be returned into
LC$ACTYPE       Number;
-- Control variables
LN$count       Number;
LC$sql_order   Varchar2(256);
BEGIN
     -- Open the cursor --
     cursor_number := Exec_SQL.Open_cursor;
     -- build the complete SQL order --
     LC$sql_order := PC$clause ;
     -- Parse the SQL order --
     EXEC_SQL.PARSE(cursor_number, LC$sql_order);
     -- Define the columns for the data to be returned --
     EXEC_SQL.DEFINE_COLUMN(cursor_number,1,LC$ACTYPE);
     -- Execute the Cursor --
     LN$count := EXEC_SQL.EXECUTE(cursor_number);
     -- Loop and fetch each row from the result set --
     While EXEC_SQL.FETCH_ROWS(cursor_number) > 0 Loop
       EXEC_SQL.COLUMN_VALUE(cursor_number,1,LC$ACTYPE);
          begin
            select chqfac, pasfac, indbcr ,
            staxfl, excise, incchg, cat001 , trntyp , subtyp
            into s_chkbok, s_pasbok, s_intber,
            s_staxfl, s_excise, s_incchg, s_cat001 , ss_trntyp , ss_subtyp
            from stfeacty
            where brancd = s_brancd
            and actype = LC$ACTYPE;
            s_actype := LC$ACTYPE ;
          exception
            when no_data_found then
              NULL;
            when too_many_rows then
              NULL;
          end;
     End Loop ;
     -- Close the cursors
     EXEC_SQL.CLOSE_CURSOR(cursor_number);
EXCEPTION
When EXEC_SQL.INVALID_CONNECTION Then
     message('Unexpected Invalid Connection error from EXEC_SQL');
When EXEC_SQL.PACKAGE_ERROR Then
     message('Unexpected error from EXEC_SQL: '||to_char(EXEC_SQL.LAST_ERROR_CODE)|| EXEC_SQL.LAST_ERROR_MESG);
If EXEC_SQL.IS_OPEN(cursor_number) Then
    EXEC_SQL.CLOSE_CURSOR(cursor_number);
    message('Exception - Cleaned up Cursor');
End if;
END; That you could call with the following:
dynamic_cursor('SELECT ac_type FROM SYSADM.SAVINGS');But, if the query is as simple with only the table name change, you could aslo use a simpliest solution based on a record group.
Francois

How to pass strings for IN Clause in REF Cursor

I have following query;
SELECT 1 INTO L
FROM test_po_apprvlines
where '4020' between NVL(approval_cost_centre_from, '0000') and
nvl (approval_cost_centre_to, '9999')
and req_approval_type IN ('BUS', 'FIN') and 10500 >= approval_amount
and NVL(req_line_type, 'X') = 'X'
AND ROWNUM =1;
Now the values for req_approval_type should be dynamic, based on approval_amount. If approval_amout > 10000 then
req_approval_type should have 'BUS' and 'FIN' , other wise only 'BUS'.
I have tried with the following code using ref cursor. But i'm not getting the result.
Any help. The problem is how to concatenate those two values to get the result.
in the following code, strings are not recoginised properly. Valid data exists in the table.
DECLARE
l_approva_type1 VARCHAR2(20) := 'FIN';
l_approva_type2 VARCHAR2(10) := 'BUS';
l_approva_type VARCHAR2(20) := '''FIN'''||','||'''BUS''';
L NUMBER;
TYPE TEST_REF IS REF CURSOR;
cur_ref TEST_REF;
L_str varchar2(1000) := 'SELECT 1'||
' FROM test_po_apprvlines'
||' where '||'''4020'''||' between NVL(approval_cost_centre_from, '||'''0000'''||') and nvl(approval_cost_centre_to, '|| '''9999'''||')'
||' and req_approval_type IN ( :bi_approva_type)'||
' and 10500 >= approval_amount '||
' and req_line_type IS NULL '||
'AND ROWNUM =1';
L_flg varchar2(1);
BEGIN
DBMS_OUTPUT.PUT_LINE (l_approva_type);
open cur_ref for l_str USING l_approva_type;
fetch cur_ref INTO l_flg;
close cur_ref;
DBMS_OUTPUT.PUT_LINE (nvl(L_flg, 'x'));
EXCEPTION
WHEN OTHERS THEN
if cur_ref%isopen then
     close cur_ref;
     end if;
DBMS_OUTPUT.PUT_LINE (SQLERRM);
END;

You cant "Bind" here.
One way..
SQL> var a refcursor
SQL> declare
2   str varchar2(100) := '''SALESMAN'',''ANALYST''';
3 begin
4   open :a for 'select ename from emp
5                where job in ('||str||')';
6 end;
7 /
PL/SQL procedure successfully completed.
SQL> print :a
ENAME
WARD
SCOTT
Message was edited by:
        jeneesh
Results in More parsing...

Is there a different way to open a cursor for a ref cursor procedure?

hello everybody
i have two cursors, cur_a and cur_b, declared somewhere else in my application.
These two cursors have the same fields, in the same order, and i have to treat both in the same way. So i wrote a routine that gets as input a ref cursor based on the cur_a rowtype, and i am trying to use this routine for both.
The problem is that i am not able to open outside the routine the cursor in a different way than usual...
the common method is :
declare curs ref cursor ...
begin
open curs for (select *...)
end;
instead i would like to obtain something different
declare curs ref cursor ...
begin
open curs for cur_a
end;

hi
thanks for answering
i wanted just to give a better idea, anyway you were near to get it.
the only difference is that the two cursors are not written in dynamic sql, just like strings, but are real cursors.
anyway, this is the version of the package i need, but i am not able to compile
(your original code is commented and immediately below there is my code)
CREATE OR REPLACE PACKAGE BODY mytest
IS
--cur_a VARCHAR2(200) := 'SELECT dummy FROM DUAL';
CURSOR cur_a
IS
SELECT dummy
FROM DUAL;
--cur_b VARCHAR2(200) := 'SELECT ''fred'' FROM DUAL';
CURSOR cur_b
IS
SELECT 'fred' fred
FROM DUAL;
TYPE t_cur_a IS REF CURSOR
RETURN cur_a%ROWTYPE
--PROCEDURE routine_a_b (p_cur SYS_REFCURSOR) IS
PROCEDURE routine_a_b (p_cur t_cur_a)
IS
v_x VARCHAR2 (10);
BEGIN
LOOP
FETCH p_cur
INTO v_x;
EXIT WHEN p_cur%NOTFOUND;
DBMS_OUTPUT.put_line (v_x);
END LOOP;
END;
PROCEDURE doit
IS
--v_curs SYS_REFCURSOR;
v_curs t_cur_a;
BEGIN
NULL;
-- open v_curs FOR cur_a;
OPEN v_curs FOR cur_a;
routine_a_b (v_curs);
CLOSE v_curs;
-- open v_curs FOR cur_b;
-- routine_a_b(v_curs);
-- close v_curs;
END;
END;
the error is:
cursor 'V_CURS' cannot be used in dynamic SQL OPEN statement
i did read that if use weak ref cursor, it could work, so i declare the ref cursor type in this way:
TYPE t_cur_a IS REF CURSOR;
instead than
TYPE t_cur_a IS REF CURSOR
RETURN cur_a%ROWTYPE
what i get is another error (in the open cursor command)
PLS-00382: expression is of wrong type....
but if i replace
OPEN v_curs FOR cur_a;
with
OPEN v_curs for select dummy from dual;
it works... but i already knew it.. :-)
anyway, i used a work around to resolve it, so it's just philosophy

Using temporary tables with a ref. cursor

I want to use a temporary table to populate certain data and then return a ref cursor fetching data from the temporary table.
1. Will this approach work ?
2. Do I need to drop the temporary table ? Can I drop the table as a last statement in the stored proc (remember a ref cursor based on this table is to be returned as a out parameter).
Please help.

1. Will this approach work ?Sort of, just like it is possible to dig a trench with a spoon. It can be done, but why can't you just write a select that returns the data without storing intermediate versions of your processing somewhere.
2. Do I need to drop the temporary table ?No. and you shouldn't.
Can I drop the table as a last statement in the stored proc
(remember a ref cursor based on this table is to be returned as a out parameter).No.
If you really need to use a temporary table, it should be created one time when the application is installed, and should never be created in code.

How to get value from First Row in an REF CURSOR

I have a REF CURSOR defind like:
open out_RESULT_SET for
select
EVENT_UID,
EVENT_DATE,
EVENT_ITEM
from
EVENT
order by
EVENT_DATE ASC;
I want to also set the value of a variable v_FIRST_EVENT_DATE to the value in the EVENT_DATE column of the first row.
I know I could do a:
select
min(EVENT_DATE)
into
v_FIRST_EVENT_DATE
from
EVENT;
But I would rather just use the REF CURSOR (I think).
Thanks for the help.

How would I get v_FIRST_EVENT_DATE set to the date of the first event in the REF CURSOR out_RESULT_SET?Normal fetch into associated local variables should suffice.
Something along those lines:
declare
   v_first_event_date   event.event_date%type;
   v_event_uid          event.event_uid%type;
   v_event_date         event.event_date%type;
   v_event_item         event.event_item%type;
begin
   open out_result_set for
      select   min (event_date) over () first_event_date, event_uid,
               event_date, event_item
          from event
      order by event_date asc;
   loop
      fetch out_result_set
       into v_first_event_date, v_event_uid, v_event_date, v_event_item;
      exit when out_result_set%notfound;
      do_something;
   end loop;
close out_result_set;
end;
/

Ref cursors - 'with' clause

I am working with a procedure which is returning a ref-cursor to a Java Call. Inside the procedure I see a statment like
Open t_results for
with rfq_companies AS
select statement1),
rfq_hierarchies AS
select statement2),
rfq_relnhierarchies AS
select statement 3);
Can anybody explain such an usage for opening a ref cursor ('WITH' clause)?. What is the effect of using this and how Java will interpret this?

The procedure is still returning a REF CURSOR, regardless of the way the SELECT statements is created. There is no effect as far as Java is concerned.
Read more on the WITH clause:
http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/statements_10002.htm#sthref9697
in the section: Subquery Factoring

Is BC4J a viabl option for database with stored procedure (ref cursor) API?

I'm about to begin a Web application development project. As foundation, we have a (Oracle) database of certain complexity that have a data access API developed with PL/SQL packages.
This API is designed to get data through stored procedures/functions that return REF CURSOR.
Personally I have been investigating about Oracle ADF/JSF, and a number of others J2EE technologies, and at this moment I am doubting if ADF BC are a viable option to my development team.
I think this because I have noticed that one of the great drawback in ADF BC is the lack of simplicity to get data through stored procedures/functions that returns REF CURSORS.
I have been looking for documentation and the only thing that I have found are two examples:
1.- One that really do not work (fails in get data from ref cursor): ADF BC StoredProcedure Sample application.
2.- And other published by Steve Muench in
http://radio.weblogs.com/0118231/stories/2003/03/03/gettingAViewObjectsResultRowsFromARefCursor.html. This sample works fine.
But, the problem with the approach of this last article is the amount (and complexity) of the code necessary to make so basic and recurrent operation as is "obtain data through a stored procedure (ref cursor)".
Below it is the code that I have constructed to call a function that returns a ref cursor (based on steve's article).
If this is the only way to make this (historically so basic and simple) task, then it is obvious that BC is not a viable technology to my (or I am in a mistake?), since we have about 50 stored procedures/functions to access the underlying data; that stored procedures/functions are key to development of the new application (and, still more, currently are used to anothers apps ).
By all this, I would like consult to Oracle's people:
1.- I really must reject BC as technology to implement this project ?
2.- It is possible to access stored procedures in a simpler way using BC?
3.- If the answer to 2 is NOT: in near future, the BC team has plans to give more support to the simple access to stored procedures?
4.- If the answer to 3 is NOT: what another technology you recommend to construct my data access/business tier and still be able to using the others characteristics of ADF?
Thank you very much for your guidelines.
Regards, RL.
** And the code!!!
** ###   I am forced to do this for each call to a procedure???? ###
package myrefcursor.model;
import java.math.BigDecimal;
import java.sql.CallableStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Types;
import oracle.jbo.JboException;
import oracle.jbo.domain.NullValue;
import oracle.jbo.domain.Number;
import oracle.jbo.server.DBTransaction;
import oracle.jbo.server.ViewObjectImpl;
import oracle.jbo.server.ViewRowImpl;
import oracle.jbo.server.ViewRowSetImpl;
import oracle.jdbc.driver.OracleCallableStatement;
import oracle.jdbc.driver.OracleTypes;
public class TraePolizasViewImpl extends ViewObjectImpl {
    private static final String SQL = "begin ? := PKG_PRUEBA.trae_polizas(?);end;";
    private static final String COUNTSQL = "begin ? := PKG_PRUEBA.count_trae_polizas(?);end;";
    public TraePolizasViewImpl() {
    protected void executeQueryForCollection(Object qc,Object[] params,int numUserParams) {
        BigDecimal rut_contratante = null;
        Object[] theUserParam = null;
        System.out.println(params);
        System.out.println(params[0]);
        if (params != null)
            theUserParam = (Object[]) params[0];
        //if (theUserParam != null && theUserParam.length > 0 )
        if (! (theUserParam[1]   instanceof NullValue) )
            rut_contratante = (BigDecimal)theUserParam[1];
        storeNewResultSet(qc ,retrieveRefCursor(qc, rut_contratante));
        super.executeQueryForCollection(qc, params, numUserParams);
    protected void create() {
      getViewDef().setQuery(null);
      getViewDef().setSelectClause(null);
      setQuery(null);
    protected ViewRowImpl createRowFromResultSet(Object qc, ResultSet rs) {
      rs = getResultSet(qc);
      ViewRowImpl r = createNewRowForCollection(qc);
      try {
        populateAttributeForRow(r,0, nullOrNewNumber(rs.getBigDecimal(1)));
        populateAttributeForRow(r,1, rs.getString(2));
      catch (SQLException s) {
       throw new JboException(s);
      return r;
    protected boolean hasNextForCollection(Object qc) {
      ResultSet rs = getResultSet(qc);
      boolean nextOne = false;
      try {
        nextOne = rs.next();
        if (!nextOne) {
          setFetchCompleteForCollection(qc, true);
          rs.close();
      catch (SQLException s) {
       throw new JboException(s);
      return nextOne;
    protected void releaseUserDataForCollection(Object qc, Object rs) {
       ResultSet userDataRS = getResultSet(qc);
       if (userDataRS != null) {
        try {    userDataRS.close();    }
        catch (SQLException s) { ; }
      super.releaseUserDataForCollection(qc, rs);
    public long getQueryHitCount(ViewRowSetImpl viewRowSet) {
      return viewRowSet.getRowCount();
    private ResultSet retrieveRefCursor(Object qc, BigDecimal rut_contratante) {
      CallableStatement st = null;
      try {
        st = getDBTransaction().createCallableStatement(SQL, DBTransaction.DEFAULT);
        st.registerOutParameter(1,OracleTypes.CURSOR);
        if (rut_contratante == null)
            st.setNull(2, Types.NUMERIC);
        else
            st.setBigDecimal(2, rut_contratante);
        st.execute();
        ResultSet rs = ((OracleCallableStatement)st).getCursor(1);
        rs.setFetchSize(getFetchSize());
        return rs ;
      catch (SQLException s) {
        throw new JboException(s);
      finally {try {st.close();} catch (SQLException s) {;}}
    private void storeNewResultSet(Object qc, ResultSet rs) {
      ResultSet existingRs = getResultSet(qc);
      if (existingRs != null) {
        try {existingRs.close();} catch (SQLException s) {;}
      setUserDataForCollection(qc,rs);
      hasNextForCollection(qc); // Prime the pump with the first row.
    private ResultSet getResultSet(Object qc) {
        return (ResultSet)getUserDataForCollection(qc);
    private static Number nullOrNewNumber(BigDecimal b) {
         try {
           return b != null ? new Number(b) : null;
         catch (SQLException s) { ; }
         return null;
    public BigDecimal getprutcontratante() {
        return (BigDecimal)getNamedWhereClauseParam("prutcontratante");
    public void setprutcontratante(BigDecimal value) {
        setNamedWhereClauseParam("prutcontratante", value);
}

no?

Are ref cursors supported in APEX??

Apex version 3.2
ORacle 10G

Tony,
Please see http://apex.oracle.com/pls/apex/f?p=34598:1
This is a demo illustrating ApEx consuming a REF CURSOR for processing, and consuming the same REF CURSOR for a report.
Behind the scenes code:
-- defines the cursor type
create or replace PACKAGE emp_ref_cursor_pkg AS
   TYPE emp_ref_cursor IS REF CURSOR
      RETURN emp%ROWTYPE;
END emp_ref_cursor_pkg;
-- procedure returning a REF CURSOR of emp rows for specified department - pretend this is one of the original
-- poster's legacy REF CURSOR routines
create or replace PROCEDURE test_ref_cursor(
   p_deptno IN     NUMBER,
   p_cursor    OUT emp_ref_cursor_pkg.emp_ref_cursor
) IS
BEGIN
   OPEN p_cursor FOR
      SELECT *
        FROM emp
       WHERE deptno = p_deptno;
END test_ref_cursor;
-- table type to support pipelined function
create or replace package emp_pkg
is
type emp_tbl is table of emp%rowtype;
end;
-- pipelined function wrapping the test_ref_cursor procedure, pipes rows for specified department
create or replace FUNCTION showit(p_deptno IN NUMBER)
   RETURN emp_pkg.emp_tbl
   PIPELINED IS
   c_cursor   emp_ref_cursor_pkg.emp_ref_cursor;
   r_emp      c_cursor%ROWTYPE;
BEGIN
   test_ref_cursor(p_deptno, c_cursor);
   LOOP
      FETCH c_cursor
      INTO r_emp;
      EXIT WHEN c_cursor%NOTFOUND;
      PIPE ROW (r_emp);
   END LOOP;
   CLOSE c_cursor;
   RETURN;
END;Source of PL/SQL Region in ApEx application showing consumption of REF CURSOR:
DECLARE
   c_cursor   emp_ref_cursor_pkg.emp_ref_cursor;
   r_emp      c_cursor%ROWTYPE;
BEGIN
   test_ref_cursor(10, c_cursor);
   LOOP
      FETCH c_cursor
      INTO r_emp;
      EXIT WHEN c_cursor%NOTFOUND;
      -- just output emp name - but could be any sort of processing going on here
      HTP.p(r_emp.ename || '<br />');
   END LOOP;
   CLOSE c_cursor;
END;Source of Report Region in ApEx application showing consumption of REF CURSOR via pipelined function from above:
SELECT *
FROM table(showit(10))Does that answer the question sufficiently enough for you? Again, Tony, I NEVER said that ApEx can process a REF CURSOR - I simply said that, via PL/SQL, the original poster CAN still use his/her previously defined REF CURSORS in an ApEx application.
Please try to concentrate on helping the new users get up to speed on one of the best web-database RAD tools out there and not so much on trying to one-up the people that are just trying to help.
Regards,
John

Return csv string as strongly typed ref cursor

I have a column in a table that is csv delimited and I want to return it (and others) as a strongly typed ref cursor.
eg
create table test_tab (mydata varchar2(100))
insert into test_tab(mydata) values ('"a1","b1","c1","d1"')
insert into test_tab(mydata) values ('"a2","b2","c2","d2"')
so test_tab has 1 column and 2 rows:
"a1","b1","c1","d1"
"a2","b2","c2","d2"
So a,b,c,d represent columns in my strongly typed ref cursor
If I then try something like:
declare
type my_rec is record(
a varchar2(50),
b varchar2(50),
c varchar2(50),
d varchar2(50)
type my_rec_refc IS REF CURSOR RETURN my_rec;
my_test_refc my_rec_refc;
begin
open my_test_refc for select mydata,mydata,mydata,mydata from test_tab;
end;
then it obviously works as my ref cursor is expecting 4 columns. However, what I want to do is break each individual element out of the mydata column. I've played around a bit with dynamic sql but only getting so far and apparently that can't be used with a ref cursor anyway. I need to return a strongly typed cursor as another program requires this.
One option is to manually parse each row and insert into temp table that is basically definition of record (so record type no longer needed) and this becomes type of ref cursor. I can then simply select from the table. I'm not keen on this as it's just another object to worry about.
Another option is to do some ugly instr/substr to extract each element in the sql statement (or write a function to do it but need to consider performance of this). The more generic the better as I need to reuse against multiple strongly typed ref cursors (kind of a contradiction in that by virtue of using strongly typed cursors I know exactly what I want returned!).
Another option is for someone to shed some light on this as it must be possible to do in a simple way along the same lines I have started?
thanks in advance

That documentation seems to stay pretty vague. What constitutes the "right set of columns". Obviously my observed result matches what you are saying about not being able to enforce the datatypes in the fields of the strong typed cursor. But then I don't see the point of the strong typed cursor otherwise. Other sites i have read seem to focus on the %rowtype return rather than mapping it to a record. But the general consensus (at least to my understanding) is that if the cursor is strongly typed then the sql statement that used to open it must have the same set of columns and the datatypes must at least be able to implicitly convert.
I will try the %rowtype strong ref cursor against a table and see if there is a different result. I am mainly interested in this because I would like to beable to ensure the datatype returned on the .net side through ODP
I want to be able to know the datatype of a field coming back through a ref cursor at compile time not runtime. So it the answer to cast every field of the select statement?

Joining a ref cursor to a table

Dear all;
Can you please show me a simple example on how to join a ref cursor to a table because I have a function that returns a ref cursor and I would like to call that function in another function(function B) and then join it to a table in that function(function B)

user13328581 wrote:
well, I personnally know it is a bad idea but my fellow senior keeps advicing me to do it. Their reason is based on the code reusability aspect of things. I had a function 1 already created which returned a ref cursor and basically within that function is a complex select statement. Now I have function 2 which is making use of a similar select statement, the only different between the two select statment is based on the fact, the function 2 select statement is joining to another table at the very end, so based on their argument they want me to call that select statement from function 1 and join it to that table instead...Then your "+seniors+" need to extract their heads from whatever dark orifice they have it stuck in, as this is not how '"+code reusability+" works in the Oracle environment.
In the SQL language, views are used to create re-usable SQL source code.
In Oracle, the Shared Pool is used to create and store cursors for reuse (assuming the SQL source allows reusability and uses bind variables).
Joining a ref cursor (code) with a table (data) is just plain stupid - and no amount of "code reusability" arguing will change this fact.

Ref cursor based on join or nested select is empty

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