Procedure to RETURN a REF CURSOR

Environment:
OWB10g Client on Windows XP Professional
Repository - 9.2.0.4 on UNIX (AIX 5.2)
Target - 9.2.0.4 on UNIX (AIX 5.2)
Is it possible to create a PROCEDURE in OWB that returns a REF CURSOR?
It was not one of the TYPEs available when specifying the procedure parameters.
Is this an enhancement that's coming if it's not possible today?
Many thanks for all feedback. This is a great interactive discussion forum.
Gary

Good afternoon Gary,
Have you checked whether it's possible to use the table-function?
Don't know you specific requirements, but according to the explanation ("Table functions extend PL/SQL and are a new option in Oracle9i. This option allows a function to accept, process and return multiple rows.") it at least is capable of returning rowtypes.
Cheers, Patrick

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Using an Oracle procedure that returns three ref cursors

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How to return a ref cursor from this dbms_sql?

Hi,
Can anyone show me how to return a ref cursor from this dbms_sql based procedure? I see 11g has a dbms_sql.to_refcursor(cursor_handle). How can this be done is 10g?
Thx.
CREATE OR REPLACE PROCEDURE Sample_Get_t
p_sample_id sample.sample_id%TYPE,
p_contract_id sample.contr_id%TYPE
IS
cursor_handle INT;
sql_stmnt varchar2(500);
rows_processed NUMBER;
BEGIN
sql_stmnt :=
'SELECT
sample_id,
contr_id,
rcpt_id
FROM
sample s
WHERE
s.contr_id = :1
and s.sample_id = :2
ORDER BY
sample_id';
cursor_handle := dbms_sql.open_cursor;
dbms_sql.parse(cursor_handle, sql_stmnt, dbms_sql.native);
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In 10 this cannot be done with dbms_sql (to my knowledge). There are a couple of other options.
1) open the ref cursor for the dynamic statement using bind variables (or SYS_CONTEXT variables, which i prefer since they are much easier to deal with when you are dynamically adding predicates).
declare
   wRefCursor SYS_REFCURSOR;
begin
   open wRefCursor for 'select * from all_objects where owner = :Logged_in_user' using user;
end;
/or using the context (the context will bind for you)
declare
   wRefCursor SYS_REFCURSOR;
begin
   open wRefCursor for 'select * from all_objects where owner = SYS_CONTEXT(''CONTEXT_NAME'', ''VARIABLE_NAME'') ';
end;
/Be aware that contexts ALWAYS return varchar values, so if you are comparing to a number you should wrap it in TO_NUMBER, a date, TO_DATE and so on....
2) change the DBMS_SQL to do an insert into a global temporary table and return the ref cursor which select's * from GTT;
3) upgrade to Oracle 11 :)

Function call returned in ref cursor

We have a ref cursor that calls a function in a package. When ODP.NET reads the cursor, it can't see what the function is returning. OO4O works fine, and if I take the sql that populates the ref cursor and put it into a temporary table, then select from that temporary table to return the ref cursor to ODP, it works fine. Anyone else seen this issue? Any help would be appreciated. Thanks.
Eric Schrauth
[email protected]

Did you set the parameter direction to be ParameterDirection.Input when you created the parameter? Post your code.

Plsql use a function which returns a ref cursor

Hi
I've been using an function which returns a ref cursor. I've been returning this into a java resultset. Fine!
Now i'm in plsql and want to use the same function. I'm not sure how to get this resultset in plsql.

It's not very practical to use a refcursor like you want to, but here you go
create or replace function test_ref
return sys_refcursor
is
v_rc sys_refcursor;
begin
open v_rc for select emp_name from emp ;
return v_rc;
end;
declare
v_rc sys_refcursor;
v_emp_name emp.emp_name%type;
begin
v_rc := test_ref ;
loop
    fetch v_rc into v_emp_name ;
    exit when v_rc%notfound ;
    dbms_output.put_line('Employee Name: '||v_emp_name );
end loop;
end;

Oracle Function returns a Ref Cursor to a ResultSet object - Performance

My program calls an Oracle PL/SQL function which returns a ref cursor to a ResultSet object. I know that the function runs to completion relatively quickly when i run it in an anonymous block but when the call is made through my Java application the resultset takes about 30 mins to return. Below is a snippet of my code:
currentConnection = ConnectionManager.getInstance().getConnection();
reportStmt = currentConnection.prepareCall("BEGIN ? := ENVISION.PKG_WMS_TO_AP.F_REPORT_CI_SC_HOLDING(?,?); END;"); reportStmt.registerOutParameter(1, OracleTypes.CURSOR);
reportStmt.setString(2, invoice.getCrewHQ());
reportStmt.setDate(3, invoice.getWrCompletionDate());
reportStmt.execute();
reportRS = ((OracleCallableStatement) reportStmt).getCursor(1);
Through a debugger I see that the second last statement (reportStmt.execute()) runs quickly. It is only when I step into the last statement that the debugger takes up to 30 minutes.
Any thoughts?

Flynn,
The Internet is a dynamic place. After nearly two and a half years, there is a chance that a link will change. This is the new URL for the relevant Web page:
http://asktom.oracle.com/~tkyte/ResultSets/
Good Luck,
Avi.

How return parameter ref Cursor from procedure using dynamic SQL?

I sorry, but i very need help.
I using Oracle 8.0.6
I need to return parameter of type ref Cursor from procedure.
create or replace package PlanExp is
type cursortype is ref cursor;
procedure ShowPlan (cursorparam out
cursortype.............);
end PlanExp;
create or replace package body PlanExp is
procedure ShowPlan (cursorparam out cursortype,
.............) Is
sql_str varchar2(1000);
sql_str_select varchar2(100);
sql_str_from varchar2(100);
sql_str_where varchar2(500);
Return_Code integer;
Num_Rows integer;
cur_id_sel integer;
tSum_Plan DBMS_SQL.NUMBER_TABLE;
tSum_Plan_Ch DBMS_SQL.NUMBER_TABLE;
tSum_Plan_Day DBMS_SQL.NUMBER_TABLE;
begin
/* calculating string variables ........... /*
sql_str := 'select ' || sql_str_select ||
'from ' || sql_str_from ||
'where ' || sql_str_where ||
'group by ' || sql_str_select;
cur_id_sel := dbms_sql.open_cursor;
dbms_sql.parse(cur_id_sel, sql_str, dbms_sql.native);
dbms_sql.define_array(cur_id_sel, 1, tSum_Plan, 20, 1);
dbms_sql.define_array(cur_id_sel, 2, tSum_Plan_Ch, 20, 1);
dbms_sql.define_array(cur_id_sel, 3, tSum_Plan_Day, 20, 1);
Return_Code := dbms_sql.execute(cur_id_sel);
delete from TEMP_SHOWPLAN;
Loop
Num_Rows := dbms_sql.Fetch_Rows(cur_id_sel);
dbms_sql.column_value(cur_id_sel, 1, tSum_Plan);
dbms_sql.column_value(cur_id_sel, 2, tSum_Plan_Ch);
dbms_sql.column_value(cur_id_sel, 3, tSum_Plan_Day);
if Num_Rows = 0 then
exit;
end if;
Exit When Num_Rows < 20;
End Loop;
dbms_sql.close_cursor(cur_id_sel);
end;
end PlanExp;
How return cursor (cursorparam) from 3 dbms_sql.column_value-s ?

I am using Oracle 8.1.7, so I don't know if this will work in
8.0.6 or not:
SQL> CREATE TABLE test
2    (col1                    NUMBER,
3     col2                    NUMBER,
4     col3                    NUMBER)
5 /
Table created.
SQL> INSERT INTO test
2 VALUES (1,1,1)
3 /
1 row created.
SQL> INSERT INTO test
2 VALUES (2,2,2)
3 /
1 row created.
SQL> INSERT INTO test
2 VALUES (3,3,3)
3 /
1 row created.
SQL> CREATE TABLE temp_showplan
2    (tSum_Plan               NUMBER,
3     tSum_Plan_Ch            NUMBER,
4     tSum_Plan_Day           NUMBER)
5 /
Table created.
SQL> EDIT planexp
CREATE OR REPLACE PACKAGE PlanExp
IS
TYPE CursorType IS REF CURSOR;
PROCEDURE ShowPlan
    (cursorparam    IN OUT CursorType,
     sql_str_select IN     VARCHAR2,
     sql_str_from   IN     VARCHAR2,
     sql_str_where IN     VARCHAR2);
END PlanExp;
CREATE OR REPLACE PACKAGE BODY PlanExp
IS
PROCEDURE ShowPlan
    (cursorparam    IN OUT CursorType,
     sql_str_select IN     VARCHAR2,
     sql_str_from   IN     VARCHAR2,
     sql_str_where IN     VARCHAR2)
IS
    sql_str                VARCHAR2 (1000);
    cur_id_sel             INTEGER;
    return_code            INTEGER;
BEGIN
    DELETE FROM temp_showplan;
    sql_str := 'INSERT INTO   temp_showplan '
           || ' SELECT '   || sql_str_select
           || ' FROM '     || sql_str_from
           || ' WHERE '    || sql_str_where;
    cur_id_sel := DBMS_SQL.OPEN_CURSOR;
    DBMS_SQL.PARSE (cur_id_sel, sql_str, DBMS_SQL.NATIVE);
    return_code := DBMS_SQL.EXECUTE (cur_id_sel);
    DBMS_SQL.CLOSE_CURSOR (cur_id_sel);
    OPEN cursorparam FOR SELECT * FROM temp_showplan;
END ShowPlan;
END PlanExp;
SQL> START planexp
Package created.
Package body created.
SQL> VARIABLE g_ref REFCURSOR
SQL> EXEC PlanExp.ShowPlan (:g_ref, 'col1, col2,
col3', 'test', ' 1 = 1 ')
PL/SQL procedure successfully completed.
SQL> PRINT g_ref
TSUM_PLAN TSUM_PLAN_CH TSUM_PLAN_DAY
         1            1             1
         2            2             2
         3            3             3

Returning a Ref cursor as an OUT Parameter

Hi Guys
I have defined 2 Types and 2 Ref cursors as shown below.I have written a procedure having 2 IN and 2 OUT parameters which are of type Ref cursors and return records to the calling client. My question is how can i test for the output of the two cursors here in pl/sql?.. also i should not close the sursors.. right?..its the job of the calling client as per my knowledge....Please suggest
TYPE type_dept_Rec IS RECORD(deptNo varchar2);
TYPE type_prod_Rec IS RECORD(prodType varchar2);
TYPE deptCursor IS REF CURSOR RETURN type_dept_Rec;
TYPE prodCursor IS REF CURSOR RETURN type_prod_Rec;
PROCEDURE TEST (pinCode IN varchar2, prodType IN number, deptCursor OUT deptType, productCursor OUT deptType) IS
BEGIN
OPEN deptCursor FOR SELECT
deptNo
from
DEPT
where
pinCode = pinCode;
OPEN productCursor FOR SELECT
prodCode
from
PROD
where
prodType = prodType;
end;

A Correction to the above code snippet
Hi Guys
I have defined 2 Types and 2 Ref cursors as shown below.I have written a procedure having 2 IN and 2 OUT parameters which are of type Ref cursors and return records to the calling client. My question is how can i test for the output of the two cursors here in pl/sql?.. also i should not close the sursors.. right?..its the job of the calling client as per my knowledge....Please suggest
TYPE type_dept_Rec IS RECORD(deptNo varchar2);
TYPE type_prod_Rec IS RECORD(prodType varchar2);
TYPE deptCursor IS REF CURSOR RETURN type_dept_Rec;
TYPE prodCursor IS REF CURSOR RETURN type_prod_Rec;
PROCEDURE TEST (pinCode IN varchar2, prodType IN number, deptCursor OUT deptCursor, productCursor OUT prodCursor) IS
BEGIN
OPEN deptCursor FOR SELECT
deptNo
from
DEPT
where
pinCode = pinCode;
OPEN productCursor FOR SELECT
prodCode
from
PROD
where
prodType = prodType;
end

Returning a ref cursor on a Global Temporary table

I realize this is probably not feasible but I am manipulating data and storing it in a GTT and I wish to return that transformed data out as a ref cursor is this possible to do? I also dont want a static table because this is a heavily hit procedure and I do not want to have to keep track of which session is which data not to mention contention between them.
I am using Oracle 10g on Windows server 2008

You will be able to see the records in the refcursor in the same session
Example
SQL> create global temporary table X_GTT as select * from emp where 1=2;
Table created.
SQL> insert into x_GTT select * from emp ;
14 rows created.
SQL> var rf refcursor ;
SQL> begin
2    open :rf for select * from X_GTT ;
3 end ;
PL/SQL procedure successfully completed.
SQL> print rf
     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM     DEPTNO
      7369 SMITH      CLERK           7902 17-DEC-80        800                    99
      7499 ALLEN      SALESMAN        7698 20-FEB-81       1600        300         30
      7521 WARD       SALESMAN        7698 22-FEB-81       1250        500         30
      7566 JONES      MANAGER         7839 02-APR-81       2975                    20
      7654 MARTIN     SALESMAN        7698 28-SEP-81       1250       1400         30
      7698 BLAKE      MANAGER         7839 01-MAY-81       2850                    30
      7782 CLARK      MANAGER         7839 09-JUN-81       2450                    10
      7788 SCOTT      ANALYST         7566 19-APR-87       3000                    20
      7839 KING       PRESIDENT            17-NOV-81       5000                    10
      7844 TURNER     SALESMAN        7698 08-SEP-81       1500          0         30
      7876 ADAMS      CLERK           7788 23-MAY-87       1100                    20
      7900 JAMES      CLERK           7698 03-DEC-81        950                    30
      7902 FORD       ANALYST         7566 03-DEC-81       3000                    20
      7934 MILLER     CLERK           7782 23-JAN-82       1300                    10
14 rows selected.SS

Toplink support for stored procedure with 2 OUT REF CURSOR ?

Can Toplink StoredProcedureCall be used with Oracle PLSql procedure with 2 OUT parameters. Parameter type is Ref Cursor (Oracle PLSQL resulset)
Regards

In a TopLink StoredProcedureCall using an OUT CURSOR the cursor is assumed to map to the result set for the TopLink query.
For example if you had a stored procedure READ_ALL_EMP that returned a out cursor of EMP rows, you could use that procedure in a TopLink mapped Employee class mapped to the EMP table and use the stored procedure in a ReadAllQuery for the Employee class.
If the procedure does not return data that maps to objects, you can use a DataReadQuery to access the data. The out cursor would be returned as a Vector of DatabaseRows that contain the data from the cursor rows.
If the procedures data is complex and does not map to objects, it may be better to access the procedure directly through JDBC.

Ref cursor to object and return to ref cursor

how i will call object type from refcursor and return value to ref cursor .

I need a help. please help me.
takes oracle object types as input/output.
PROCEDURE createserviceorder(
P_serviceorder IN serviceorder,
P_serviceid in out p_sm_type.serviceid,
P_serviceorderid out p_sm_type.serviceorderid,
Returnstatus out callstatus);
The serviceorder, callstatus are oracle object types.
The wrapper procedure for this API would be something like the example with pseudo code below
PROCEDURE createserviceorderwrapper(
P_serviceorder IN REFCURSOR,
P_serviceid in out p_sm_type.serviceid,
P_serviceorderid out p_sm_type.serviceorderid,
Returnstatus out REFCURSOR)
Map from ref cursor P_serviceorder to oracle object for serviceorder;
Map from other data types to local variables;
Call createserviceorder (pass the parameters here and get output.);
Map output callstatus to its equivalent REF CURSOR variable;
Return callstatus (and other out parameters if any )as REF CURSORS;
}

How to update data returned using REF CURSOR

Hi all,
I am trying to update updated data in a gridview but the update button seem to do nothing as i retrieve data using REF CURSOR.
Let me describe the architecture of my application first. I'm trying to implement best practice whenever possible. I am following the data access tutorial published in www.asp.net , the only difference is that i have an Oracle (10g) database. So I split my application into three layers, data access, business logic, and presentation layer. I'm also writing all queries in an Oracle package.
So I have my Oracle packages that perform CRUD operations. Then I have an xsd file that define dataTable based on the package procedure. My business logic layer then calls functions defined in the xsd file. And finally a detailsView control that uses an ObjectDataSource to call business logic functions.
In a nutshell, I am just trying to update records retrieved using REF CURSOR. Your help is very much appreciated. Please let me know if further details are required. Cheers,

In the DataSet (xsd) where your DataTable is defined, you just need to add additional methods to the TableAdapter to handle insert, update and delete, either with SQL or by mapping to stored procedures.
Alternatively in code, create an OracleDataAdapter and supply its InsertCommand, UpdateCommand and DeleteCommand.
David

Alternative to native, dynamic sql to return a ref cursor to a client

I'm on Oracle 8.0.4, and would like to pass a string of values like '1,2,7,100,104' that are the primary key for a table. Then use something like:
procedure foo( MyCur RefCurType, vKey varchar2)
begin
open MyCur for
'select names from SomeTable' | |
' where ID in (' | | vKey | | ')'
end;
This would return a recordset to (in this case) a Crystal Reports report.
However, native dynamic SQL ain't available until 8.1.0. So can anyone think of a clever way to accomplish this, with a way to return a cursor? I can't figure out how to do this with DBMS_SQL, because open_cursor is just returning a handle, not a referene to a cursor that can be passed to a remote client.
Thanks in advance.

I'm on Oracle 8.0.4, and would like to pass a string of values like '1,2,7,100,104' that are the primary key for a table. Then use something like:
procedure foo( MyCur RefCurType, vKey varchar2)
begin
open MyCur for
'select names from SomeTable' | |
' where ID in (' | | vKey | | ')'
end;
This would return a recordset to (in this case) a Crystal Reports report.
However, native dynamic SQL ain't available until 8.1.0. So can anyone think of a clever way to accomplish this, with a way to return a cursor? I can't figure out how to do this with DBMS_SQL, because open_cursor is just returning a handle, not a referene to a cursor that can be passed to a remote client.
Thanks in advance.

Getting a ref cursor out of a procedure

Hello,
I am having some issues getting the ref cursor out of this procedure that returns a ref cursor when given inputs.
I have included the code below and made bold the call to the package and procedure where the requested function lies. I put c2 in the first parameter because that is the out and is defined first in the procedure. Am I going about this the wrong way? I am mainly a .NET developer and am still learning the syntax of PL/SQL.
Thanks!
Jeffrey Kevin Pry
DECLARE
TYPE r_cursor IS REF CURSOR;
c2 r_cursor;
CURSOR c1
IS
SELECT *
FROM ELEMENT E
WHERE E.SUBTYPE_CD = 'PAT';
BEGIN
FOR ROW_ITEM IN c1
LOOP
PKG_DTEST.GET_CHILDREN(c2,ROW_ITEM.ELEMENT_ID,1);
FOR ROW_ITEM2 in c2
LOOP
dbms_output.put_line(ROW_ITEM2.ELEMENT_ID);
END LOOP;
END LOOP;
END;
Edited by: jeffrey.pry on Jan 21, 2011 6:01 AM

You should probably post the code of PKG_DTEST.GET_CHILDREN as well as the error you are getting. It's hard to troubleshoot without knowing all the parts and pieces.
Additionally, I see that you are using a nested FOR loop to process your data. You should rethink this. The best way to process data in Oracle is to compact it all into a single SQL statement if possible. If you are having trouble doing this please post the following and we can help.
1. Oracle version (SELECT * FROM V$VERSION)
2. Sample data in the form of CREATE / INSERT statements.
3. Expected output
4. Explanation of expected output (A.K.A. "business logic")
5. Use \ tags for #2 and #3. See FAQ (Link on top right side) for details.

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)
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

<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

Procedure to RETURN a REF CURSOR

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