Using ref cursor in after parameter form in reports

hi everyone,
I have problem in usage of ref cursor in after parameter form. My actual requirement is I have user parameter :p_minval, :p_maxval. The values into these user parameters will be coming dynamically using sql_statement as shown below
select min(empid),max(empid) into :p_minval, :p_maxval from emp where empid in (:p_emp);
I will be writing this query in the after parameter form
:p_emp is a lexical parameter as per me but the after parameter form is taking it as a bind variable. so I decided to define a ref cursor and then use it for retrieve. But when I use ref cursor it is returning pl/sql error 591 saying that this is not supported by client side can anyone help me plz..
The following is the code i tried to use in after parameter form
function afterPform return boolean is
type rc is ref cursor;
l_rc rc;
sqlstmt varchar2(512);
begin
sqlstmt:='select min(empid),max(empid) from emp where empid in ('||:p_emp||')';
open l_rc for
select max(empid) from emp where empid in ('||:p_emp||')';
fetch l_rc into :p_maxval;
close l_rc;
return(true);
end;
thanks & regards
venkat

I ran into the same problem. any body knows why?

Similar Messages

Problem in using ref cursor

I have a procedure which is using one ref cursor as OUT paramater. Now when I call this procedure, it gives me the following error:
ORA-00932: inconsistent datatypes: expected CURSER got NUMBER
ORA-06512: at "APPS.ORDER_RETURN1", line 8
ORA-06512: at "APPS.ORDER_RETURN2", line 4
ORA-06512: at line 1
Below is my code
PROCEDURE ORDER_RETURN1(p_order OUT sys_refcursor) IS
TYPE OE_ORDER_rcur IS REF CURSOR;
rcur OE_ORDER_rcur;
BEGIN
OPEN rcur FOR
SELECT ORDER_NUMBER FROM OE_ORDER_HEADERS_ALL WHERE ROWNUM < 4;
FETCH rcur INTO p_order;
CLOSE rcur;
END ORDER_RETURN1;
PROCEDURE ORDER_RETURN2 IS
OE_ORDER_rcur11 sys_refcursor;
BEGIN
ORDER_RETURN1(OE_ORDER_rcur11);
end;
I tried to call proc ORDER_RETURN1 with the help of proc ORDER_RETURN2, but no change, it gives me same error if i call the first proc ORDER_RETURN1 or i call ORDER_RETURN2.
I am stuck with this problem, I had used ref cursor in procedure but not able to call the procedure which uses ref cursor as OUT parameter.
Please help me to resolve this.
Thanks
Nidhi..

Check out this
SQL>VARIABLE X REFCURSOR
SQL>CREATE OR REPLACE PROCEDURE ORDER_RETURN1(p_order OUT sys_refcursor) IS
2 BEGIN
3 OPEN p_order FOR
4 SELECT OBJECT_ID FROM ALL_OBJECTS WHERE ROWNUM < 4;
5 END ORDER_RETURN1;
6 /
Procedure created.
SQL>EXEC ORDER_RETURN1(:X)
PL/SQL procedure successfully completed.
SQL>PRINT X
OBJECT_ID
         4
        39
        30
SQL>Regards
Arun

Unable to use ref cursor as a input parameter at the time of inserting reco

Hi
i am unable to use ref cursor when inserting the data to oracle 11g from visual studio 2008. please help me as early as possible my code is bellows
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Web.Configuration;
using Oracle.DataAccess.Client;
using Oracle.DataAccess.Types;
public partial class App_frmTest : System.Web.UI.Page
protected void Page_Load(object sender, EventArgs e)
protected void btnClick_Click(object sender, EventArgs e)
OracleCommand cmd=new OracleCommand();
Data objdata = new Data();
int i = 0;
string constr = "Data Source=Cwc;User Id=scott; Password=tiger;";// enlist=false; pooling=false;
OracleConnection con = new OracleConnection(constr);
/*Connection Open*/
con.Open();
cmd.Connection = con;
/*Connection Open End*/
/*Select Through Ref Cursor*/
cmd.CommandText = "scott.TEST_USER.getUSER";
cmd.CommandType = CommandType.StoredProcedure;
OracleParameter p_rc = cmd.Parameters.Add("p_rc", OracleDbType.RefCursor, DBNull.Value, ParameterDirection.Output);
OracleParameter p_rc1;
if (TextBox1.Text == "")
p_rc1 = cmd.Parameters.Add("p_rc", OracleDbType.Int16, DBNull.Value, ParameterDirection.Input);
else
p_rc1 = cmd.Parameters.Add("p_rc", OracleDbType.Int16, Convert.ToInt16(TextBox1.Text), ParameterDirection.Input);
// OracleParameter p_rc1 = cmd.Parameters.Add("p_rc", OracleDbType.Int16, 2, ParameterDirection.Input);
OracleDataReader reader = cmd.ExecuteReader();
DataSet ds = new DataSet();
DataTable dt1 = new DataTable();
dt1.Load(reader);
ds.Tables.Add(dt1);
GridView1.DataSource = ds;
GridView1.DataBind();
cmd.Parameters.Clear();
con.Close();
con.Dispose();
OracleCommand cmd1 = new OracleCommand();
OracleConnection con1 = new OracleConnection(constr);
con1.Open();
cmd1.Connection = con1;
cmd1.CommandText = "scott.TEST_USER.ADDUSER";
cmd1.CommandType = CommandType.StoredProcedure;
OracleParameter P_ADDUSER = cmd1.Parameters.Add("P_ADDUSER", OracleDbType.RefCursor, DBNull.Value, ParameterDirection.Input);
cmd1.ExecuteNonQuery(); // i am getting error when executing this line
Server Error in '/CWC' Application.
Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Source Error:
Line 77: OracleParameter P_ADDUSER = cmd1.Parameters.Add("P_ADDUSER", OracleDbType.RefCursor, DBNull.Value, ParameterDirection.Input);
Line 78: //OracleParameter P_MSG = cmd.Parameters.Add("P_MSG", OracleDbType.Varchar2, DBNull.Value, ParameterDirection.Output);
Line 79: cmd1.ExecuteNonQuery();
Line 80:
Line 81: DataTable dt = new DataTable();
Source File: d:\CWC\App\frmTest.aspx.cs Line: 79
Stack Trace:
[AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.]
Oracle.DataAccess.Client.OpsSql.ExecuteNonQuery(IntPtr opsConCtx, IntPtr& opsErrCtx, IntPtr& opsSqlCtx, IntPtr& opsDacCtx, IntPtr opsSubscrCtx, Int32& isSubscrRegistered, Int32 bchgNTFNExcludeRowidInfo, Int32 bQueryBasedNTFNRegistration, Int64& query_id, OpoSqlValCtx*& pOpoSqlValCtx, String pCommandText, IntPtr& pUTF8CommandText, IntPtr[] pOpoPrmValCtx, String[] ppOpoPrmRefCtx, OpoMetValCtx*& pOpoMetValCtx, Int32 prmCnt, Int32 bFromPool) +0
Oracle.DataAccess.Client.OracleCommand.ExecuteNonQuery() +4731
App_frmTest.btnClick_Click(Object sender, EventArgs e) in d:\CWC\App\frmTest.aspx.cs:79
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +111
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +110
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565

Hi;
Its better to ask it at visual studio forum site:http://social.msdn.microsoft.com/Forums/en-US/category/visualstudio
Regard
Helios

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

Report Builder 6i returns ORA-01483 in after parameter form trigger ?

Can anybody help me ?
I've been working on a report with report builder 6.0.8.11.3,
and whenever i run the report the after parameter form trigger
returns REP-1401 and following ORA-01483.
I've been trying to change the values of some user parameters
from within the trigger code, none of them is a date or a number
parameter, these are character variables who would be referenced
lexically to change a table name dynamically when the trigger
fires. Aditionally I'm using a cursor to obtain data and then
modify the parameters.
How can i get this thing to work ?
Thanks in advance for your reply...

hello,
this might be related to the usage of number(1) as type/length
of your parameter. this is a known problem. it should be solved
by using e.g. number(2) as the type/length of your parameter.
regards,
the oracle reports team --pw

Cursors are not closed when using Ref Cursor Query in a report ORA-01000

Dear Experts
Oracel database 11g,
developer suite 10.1.2.0.2,
application server 10.1.2.0.2,
Windows xp platform
For a long time, I'm hitting ORA-01000
I have a 2 group report (master and detail) using Ref Cusor query, when this report is run, I found that it opens several cursors (should be only one cursor) for the detail query although it should not, I found that the number of these cursors is equal to the number of master records.
Moreover, after the report is finished, these cursors are not closed, and they are increasing cumulatively each time I run the report, and finally the maximum number of open cursors is exceeded, and thus I get ORA-01000.
I increased the open cursors parameter for the database to an unbeleivable value 30000, but of course it will be exceeded during the session because the cursors are increasing cumulatively.
I Found that this problem is solved when using only one master Ref Cursor Query and create a breake group, the problem is solved also if we use SQL Query instead of Ref Query for the master and detail queries, but for some considerations, I should not use neither breake group nor SQL Query, I have to use REF Cursor queries.
Is this an oracle bug , and how can I overcome ?
Thanks
Edited by: Mostafa Abolaynain on May 6, 2012 9:58 AM

Thank you Inol for your answer, However
Ref Cursor give me felxibility to control the query, for example see the following query :
function QR_1RefCurDS return DEF_CURSORS.JOURHEAD_REFCUR is
temp_JOURHEAD DEF_CURSORS.JOURHEAD_refcur;
          v_from_date DATE;
          v_to_date DATE;
          V_SERIAL_TYPE number;
begin
SELECT SERIAL_TYPE INTO V_SERIAL_TYPE
FROM ACC_VOUCHER_TYPES
where voucher_type='J'
and IDENT_NO=:IDENT
AND COMP_NO=TO_NUMBER(:COMPANY_NO);
     IF :no_date=1 then
               IF V_SERIAL_TYPE =1 THEN
               open temp_JOURHEAD for select VOCH_NO, VOCH_DATE
               FROM JOURHEAD
               WHERE COMP_NO=TO_NUMBER(:COMPANY_NO)
               AND IDENT=:IDENT
          AND ((TO_NUMBER(VOCH_NO)=:FROM_NO and :FROM_NO IS NOT NULL AND :TO_NO IS NULL)
          OR (TO_NUMBER(VOCH_NO) BETWEEN :FROM_NO AND :TO_NO and :FROM_NO IS NOT NULL AND :TO_NO IS NOT NULL )
          OR (TO_NUMBER(VOCH_NO)<=:TO_NO and :FROM_NO IS NULL AND :TO_NO IS NOT NULL )
          OR (:FROM_NO IS NULL AND :TO_NO IS NULL ))
               ORDER BY TO_NUMBER(VOCH_NO);
               ELSE
               open temp_JOURHEAD for select VOCH_NO, VOCH_DATE
               FROM JOURHEAD
               WHERE COMP_NO=TO_NUMBER(:COMPANY_NO)
               AND IDENT=:IDENT
          AND ((VOCH_NO=:FROM_NO and :FROM_NO IS NOT NULL AND :TO_NO IS NULL)
          OR (VOCH_NO BETWEEN :FROM_NO AND :TO_NO and :FROM_NO IS NOT NULL AND :TO_NO IS NOT NULL )
          OR (VOCH_NO<=:TO_NO and :FROM_NO IS NULL AND :TO_NO IS NOT NULL )
          OR (:FROM_NO IS NULL AND :TO_NO IS NULL ))
               ORDER BY VOCH_NO;
               END IF;
     ELSE
               v_from_date:=to_DATE(:from_date);
               v_to_date:=to_DATE(:to_date);
          IF V_SERIAL_TYPE =1 THEN
               open temp_JOURHEAD for select VOCH_NO, VOCH_DATE
               FROM JOURHEAD
               WHERE COMP_NO=TO_NUMBER(:COMPANY_NO)
          AND IDENT=:IDENT
               AND ((voch_date between v_from_date and v_to_date and :from_date is not null and :to_date is not null)
               OR (voch_date <= v_to_date and :from_date is null and :to_date is not null)
               OR (voch_date = v_from_date and :from_date is not null and :to_date is null)
               OR (:from_date is null and :to_date is null ))
               ORDER BY VOCH_DATE,TO_NUMBER(VOCH_NO);
          ELSE
               open temp_JOURHEAD for select VOCH_NO, VOCH_DATE
               FROM JOURHEAD
               WHERE COMP_NO=TO_NUMBER(:COMPANY_NO)
               AND IDENT=:IDENT
          AND ((voch_date between v_from_date and v_to_date and :from_date is not null and :to_date is not null)
               OR (voch_date <= v_to_date and :from_date is null and :to_date is not null)
               OR (voch_date = v_from_date and :from_date is not null and :to_date is null)
               OR (:from_date is null and :to_date is null ))
               ORDER BY VOCH_DATE,VOCH_NO;
          END IF;
     END IF;
     return temp_JOURHEAD;
end;

Procedure to fetch table records using ref cursor

Hi
i need to fetch all the records in the table using ref cursor.we need to pass table
name and the out paramater should be ref cursor.
CREATE OR REPLACE PROCEDURE gettable(p_table_name IN VARCHAR2,
p_ref_cursor OUT dept_pack.ref_cursor1)
IS
BEGIN
OPEN p_ref_cursor FOR SELECT * FROM p_table_name;
END gettable;
is that a start ? then after this i have to execute this procedure to fetch the data from table. i am getting error that table doesnot exist but my idea was to pass p_table_name as IN parameter.
Thnks in Advance

here is the example
SQL> CREATE OR REPLACE PROCEDURE TEST( t_name IN VARCHAR2
2                                  , p_cursor OUT SYS_REFCURSOR)
3 IS
4 BEGIN
5    OPEN p_cursor FOR
6    'SELECT * FROM '|| t_name ;
7 END TEST;
8 /
Procedure created.
Elapsed: 00:00:00.02
SQL> var o refcursor;
SQL> var tname varchar2(10);
SQL> execute test('EMP',:o);
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.00
SQL> print :o;
     EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM        DNO
      7369 SMITH      CLERK           7902 17-DEC-80      800.2                    20
      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.
Elapsed: 00:00:00.01
SQL> execute test('DEPT',:o);
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.02
SQL> print :o;
    DEPTNO DNAME          LOC
        90 LOGISTIC
        10 ACCOUNTING     NEW YORK
        20 RESEARCH       DALLAS
        30 SALES          CHICAGO
        40 OPERATIONS     BOSTON
Elapsed: 00:00:00.01

Calling report from form and after parameter form trigger

Hi, I've also posted to this to the reports forum but because it works from Reports Builder it may be a forms issue which is why I'm x-posting. Apologies.
I have a report that creates a file, desname is set in the after parameter form trigger (it uses one of the parameter values).
The problem is file is not created using the path and filename set in the trigger, the file is created in the bin folder with the name account_by_service_type.txt (account_by_service_type.rdf is the report definition).
If the desname is set in the before parameter form AND a field with the source=desname is added to the parameter form then the file will be created with the correct path and name however it won't have the relevant parameter incorporated into the file name obviously.
I've noticed in other reports that where the desname is being set in the after parameter form that I've had to pass the desname from the form but obviously I cannot do that here either.
Am I missing something obvious?
Regards
Sean

Hi Frank,
It's WebForms. Below is the code:
-- call from menu item
run_report_object_proc(TRUE,'accounts_by_service_type.RDF',null,FILE,'delimited','paramform=yes');
-- run_report_0bject procedure
PROCEDURE run_report_object_proc (p_screen IN BOOLEAN,
                    p_report_filename IN VARCHAR2,
                    p_desname IN VARCHAR2,
                    p_destype IN NUMBER,
                    p_desformat IN VARCHAR2,
                    p_paramform IN VARCHAR2)IS
v_report_id     report_object;
v_report     varchar2(100);
v_job_id     varchar2(100);
v_url          varchar2(1000);
rep_status     varchar2(20);
hidden_action     VARCHAR2(2000)     :='';
BEGIN
v_report_id := find_report_object( 'report2');
SET_REPORT_OBJECT_PROPERTY(v_report_id,REPORT_FILENAME,p_report_filename);
SET_REPORT_OBJECT_PROPERTY(v_report_id,REPORT_DESNAME,p_desname);
SET_REPORT_OBJECT_PROPERTY(v_report_id,REPORT_DESTYPE,p_destype);
SET_REPORT_OBJECT_PROPERTY(v_report_id,REPORT_DESFORMAT,p_desformat);
hidden_action := hidden_action||'&report='||GET_REPORT_OBJECT_PROPERTY(v_report_id, REPORT_FILENAME);
hidden_action := hidden_action||'&destype='||GET_REPORT_OBJECT_PROPERTY(v_report_id, REPORT_DESTYPE);
hidden_action := hidden_action||'&desformat='||GET_REPORT_OBJECT_PROPERTY(v_report_id, REPORT_DESFORMAT);
hidden_action := hidden_action||'&userid='||GET_APPLICATION_PROPERTY(username)||'/'||GET_APPLICATION_PROPERTY(password)||'@'||GET_APPLICATION_PROPERTY(connect_string);
if p_desname is not null then
hidden_action := hidden_action||'&'||p_paramform||'&desname='||p_desname;
else
hidden_action := hidden_action||'&'||p_paramform;
end if;
hidden_action := '/reports/rwservlet?_hidden_server=rserv1'||hidden_action;
SET_REPORT_OBJECT_PROPERTY(v_report_id, REPORT_OTHER, 'pfaction='||hidden_action||' '||p_paramform);
-- SET_REPORT_OBJECT_PROPERTY(v_report_id, REPORT_OTHER, 'paramform=no');
v_report := run_report_object( v_report_id);
IF p_screen THEN
     v_job_id := substr(v_report,instr(v_report,'_',-1)+1);
rep_status:=report_object_status(v_report);
while rep_status in ('RUNNING', 'OPENING_REPORT', 'ENQUEUED')
loop
     rep_status:=report_object_status(v_report);
end loop;
if rep_status='FINISHED' THEN
     v_url := '/reports/rwservlet/getjobid'||v_job_id||'?server=rserv1';
          web.show_document(v_url,'_blank');
else
     message(rep_status||' error running report');
end if;
end if;
END;
-- report after parameter form trigger
function AfterPForm return boolean is
begin
:desname := 'c:\service_type_'||:p_service_type||'_'||to_char(sysdate,'DDMMYYYY')||'.xls';
return (TRUE);
end;

Using ref cursor in where clause

I have a stored procedure (package procedure) that returns a ref cursor as a parameter. This procedure performs a query and returns the cursor. The procedure calls another stored procedure within the package. This second procedure also returns a ref cursor. I want to do my query on the results of the cursor returned by the second procedure. Hopefully the example below is okay.. "I had to change names to protect the blah blah...."
For example:
TYPE out_cursor IS REF CURSOR;
TYPE IDTable IS TABLE OF table1.ID%TYPE;
PROCEDURE A
v_ID IN NUMBER,
v_Param2 IN NUMBER,
v_FromClause IN VARCHAR2, -- ignore for now
v_WhereClause IN VARCHAR2, -- ignore for now
v_retval OUT NUMBER,
the_cursor OUT out_cursor
IS
v_SQLString VARCHAR2(2048);
v_cursor1 out_cursor;
v_tabIDs IDTable;
BEGIN
v_SQLString := '';
packageA.procedureA(v_ID, v_retval, v_cursor1);
-- this does not work
-- I get ORA-00942: table or view does not exist
v_SQLString := 'select distinct * from v_cursor1';
-- I found this on the message board but
-- it did not compile.
-- local collection types not allowed in SQL statements
FETCH v_cTSFiles BULK COLLECT INTO v_tabIDs;
v_SQLString := 'select distinct * from table1 WHERE table1.ID in (select * from table(v_tabIDs))';
OPEN the_cursor FOR v_SQLString;
END;

You can use that second technique but as the error message says, "local collection types not allowed in SQL statements". You need to create a schema type instead.
[sql]
create or replace type ttab_number is table of number
create or replace procedure p is
tab_id ttab_number;
refcur sys_refcursor;
begin
open refcur for
select user_id
from all_users;
fetch refcur bulk collect into tab_id;
close refcur;
for rec in (
select *
from all_users
where user_id in (
select *
from table(cast(tab_id as ttab_number)))
) loop
dbms_output.put_line(rec.username);
end loop;
end;
[sql]

Want to Create View as per Condition Fires After Parameter Form.

Hi ..
I want to create a report from a view,and that view would create after parameter form of that
report.
Example..
I want to select max(sal) of each Dept.where employee hired between 1-jan-2007 and 31-jul-2007'
I want when i Passes dates in Parameter FOrm
a view i.e select empno,deptno,sal, from emp created.
that means that view contains only data about that certain period
SO in Report Query i can write
select deptno,max(sal) from vw_employee
group by deptno.
This is just an example....my real problem is very hard and only can be done by doing create a view as per given dates in Report Parameter Form.
Waiting for Reply
Regards
Danish Hayder

Wrong ideea.
You should have the parameters in the report's query:
select empno,deptno,sal, from emp where hired between :p_start_date and :p_end_date
Why do you want to create a view in the report, seeing that it's best to use parameters.
Moreover, think that the oracle user running the report would have to have the priviledges to create views, which may not be good security policy.
Still, if you insist on creating the view when running the report, then you'd better create the view from a stored procedure, that would receive as parameter the SQL select for creating the view.
So, you'd have the stored procedure:
proc_view(p_select in varchar2, p_view_name in varchar2) is
begin
execute immediate 'create or replace view '||p)view_name||' as '||p_select;
end;
You then would compose the select in the afterpform trigger and call the proc_view procedure.
Note that I did not allow proc_view to execute immediate any SQL one would pass, for that would be really dangerous. What if one would pass to the procedure executing dynamic SQL the following: 'drop table my_table cascade constraints'?

REF Cursor as Job Parameter

Hi,
is it possible to use a REF cursor as a parameter for a job? I need jobs created with DBMS_SCHEDULER.create_job to process data which has always the same format but comes from different sources. The job must be generic and thus should not know where the data comes from. The job calls a PL/SQL procdure which takes the REF cursor as a parameter.
Regards,
Pat
Edited by: Gwydion on Jun 16, 2010 7:13 AM

Gwydion wrote:
I tried a different way: Instead of a ref cursor, I tried to pass a PL/SQL table containing the data that the job should process. Bad idea in general as this is not very scalable. A PL/SQL "+table+" is nothing table-like at all. The correct term is array or collection. This structure is primitive in that it cannot be indexed or structured like a SQL table. It also resides in "expensive" memory (the PGA/private memory of a server process) - unlike a SQL table data that will reside in the SGA buffer cache when used. The db buffer cache is shared memory - usable by all processes and thus "inexpensive" memory in comparison.
So passing and processing any largish data structure that way (via PGA memory) is inherently an unscalable approach. Also, this data set needs to persist until the job process kicks off - thus it needs to be stored somewhere. Why store this data again when it is based on table and row table that already exist in the database? Why duplicate the data?
You also need to consider data concurrency and integrity. By the time that job/scheduler background process kicks off and receives this data set structure to use for processing... the row data that this set was based on may have changed.. or may not even exist anymore.
For example, let's say that the data set contains a list of invoice numbers that need to be processed. Some of those invoices may have been canceled in the meantime. Or deleted from the system. Whatever invoice numbers this background server process now needs to deal with, can now be invalid.
You therefore need to carefully consider exactly what issues and requirements you're trying to address with this approach you are attempting. There are numerous problems areas that it needs to deal with.
Which begs the question - why are you considering this approach? What problem are you trying to address? Why not simply pass the parameters to the job it needs to use to call the procedure that creates the ref cursor? This is a much simpler and elegant solution than to pass the actual data returned by the ref cursor to the job.

Will REF CURSOR support for Oracle Forms 6i?

Hi,
I need to use ref cursor in my from. My cursor query should be dynamically append the "where clause". Hence I used the dynamic query with ref cursor.
But my problem is , when I compile the form it gives error for the line " OPEN emp_record FOR l_query;"
You need to use "select" statement.
Is there any solution for this in forms?
I know it supports for other PL/SQL areas.
Please help me. below is my code sample,
DECLARE
TYPE emp_refcur IS REF CURSOR;
emp_record    emp_refcur;
TYPE rec_emp_data IS RECORD
    emp_no              VARCHAR2(40),
emp_rec             rec_emp_data;
l_query               VARCHAR2(4000);
BEGIN
     l_query := 'SELECT empno
                 FROM emp ';
      IF :CONTROL.ename IS NOT NULL THEN
          l_query := l_query||' AND ename = '''||:CONTROL.ename||''' ';
      END IF;
     OPEN emp_record FOR l_query;
     LOOP
        FETCH emp_record INTO emp_rec;
        EXIT WHEN emp_record%NOTFOUND;
       dbms_output.put_line(emp_rec.emp_no);
    END LOOP;
    CLOSE emp_record;
END;      Thanks
Rajesh

Hi,
It's been a while since I used Forms 6i, but I remember hitting a similar problem. I don't think (and stress think!) that the PLSQL engine that comes with Forms 6i recognises ref_cursors.
The work-around I used was to move the functionality to the database and call it from forms.
Hope this helps.
Regards
Ian

How to out Dynamic ref cursor from Procedure to Forms

Hi
I am trying to out Dynamic ref cursor from Procedure to Forms, But I am unable to do so. however cursor return the value within procedure but I am failed to capture the same in Forms
Pl advice suggestion if any, Here I am attaching full procedure for reference
CREATE PACKAGE winepkg
IS
TYPE wine IS RECORD ( mynumber number);
/* Define the REF CURSOR type. */
TYPE wine_type IS REF CURSOR RETURN wine;
END winepkg;
CREATE procedure find_wine
(col1_in in number,
c1 out winepkg.wine_type) as
vsql varchar2(1000);
cur sys_refcursor;
x number;
BEGIN
vsql:='select bo_id from bo_details where bo_details.bo_id = '||col1_in ;
open cur for vsql;
c1:=cur;
--fetch c1 into x;
--dbms_output.put_line(x);
END find_wine;
In front end forms
Declare
TYPE F is REF CURSOR;
CUR_F F;
rec number;
Begin
break;
find_wine( 1601480000011078,cur_f ) ;
Loop
fetch cur_f into rec ;
Message(rec ) ;pause;
exit when cur_f%notfound ;
End loop ;
exception
when others then
Message(sqlerrm) ;pause;
End ;

yo can use
declare
c_cursor EXEC_SQL.CursType;
v_stmt varchar2(2000) = 'select a, b, c from mytab where cond1'; -- you can create this value dynamically
begin
c_cursor := Exec_SQL.Open_cursor;
EXEC_SQL.PARSE(c_articulos, v_stmt);
EXEC_SQL.DEFINE_COLUMN(c_articulos,1, v_colchar1, 30);
EXEC_SQL.DEFINE_COLUMN(c_articulos,2, v_colchar2, 15);
EXEC_SQL.DEFINE_COLUMN(c_articulos,3, v_colchar3, 30);
v_exec := EXEC_SQL.EXECUTE(c_cursor);
WHILE EXEC_SQL.FETCH_ROWS(c_cursor) > 0 LOOP
EXEC_SQL.COLUMN_VALUE(c_cursor,1,v_colchar1);
EXEC_SQL.COLUMN_VALUE(c_c_cursor,2,v_colchar2);
EXEC_SQL.COLUMN_VALUE(c_c_cursor,3,v_colchar3);
assign_values_to_block;
END LOOP;
EXEC_SQL.CLOSE_CURSOR(c_cursor);
end;
and WORKS IN FORMS 6

Difference between After parameter Form Trigger and before Report Trigger

hi,
Can some one tell me difference between After parameter form Trigger and Before parameter trigger.
Why do we need both these trigger , why can't we use any one of them because after parameter trigger will obviously fire before report trigger and similarly before report trigger will fire after parameter form.
Thanks
Ram

Hi,
i will make it clear..!
Actually, we have four type of triggers in reports..!
Before Parameter -- fires before params are suppied to the calling report..
After Parameter -- fires after params are suppied to the calling report..
Before Report -- fires before report is generated..
After Report. -- fires after report is generated..
Before Report and After Report triggers are used for formatting the report design..
like u can specify a report to be displayed based on a condition in the Before
Report trigger and u can specify some backend updations in the after report trigger
which fires after report is generated..

Passing Ref Cursor as IN parameter

I have a situation where I have to send whole table into the stored procedure, I read from the oracle new feature for .Net documentation, It is possible to pass an ref cursor as IN parameter to an stored procedure. Please help me in this, it is urgent!
I am using Visual Studio.Net 2003, ODP.Net.

Array binding is the best method for large inserts from .NET.
The problem with the associative array is:
-you must write a PL/SQL procedure to actually do the inserts.
-while this will get the data to the PL/SQL engine on the server in a block, it still must cross the into the SQL engine one row at at time.
-Array binding is simpler (you use a normal insert).
-There's a built-in knob to control the batch size.
-The array of row data is copied all the way into the SQL engine together, so it's faster.
Remember, array binding is how the SQL*Loader's conventional-path inserts work.
According to Tom Kyte "you can achive 100's of rows per second into heavily indexed tables that are concurrently being read and updated by other processes."
David

Using ref cursor in after parameter form in reports

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