How to call discoverviewer in PL/SQL?

Hi friends,
Because discover can not meet our business need,So,I build a Concurrent Program which invoke PL/SQL code for preparing datas in table xx_datas.
This table has a column REQUEST_ID,so,all the datas in this request will share the same request_id.The user can choice request_id using a selectbox in the discoverviewer,however,this method is not good for users must do 2 steps.
So,if the pl/sql can invoke discoverviewer and pass parameter to it,it will help me.

Out of curiosity, what is the PL/SQL routine doing (or what is the business need that Discoverer can not meet)?
From your description, it sounds like you are preprocessing data, then accessing that data with Viewer. Depending on the preprocessing/business need, there may be a creative solution that one of the other readers has hit upon.
I can think of a few ways to have pl/sql invoke Viewer, but they are not trivial to implement.

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I need to send a SQL Query from a VB application to let it execute on the oracle DB. This query needs to call a procedure/function, which returns a resultsets, so that i can to a (Where x in ( <call procedure> )). Would result in Where x in (50,100,3094).
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Daniel Meyer

Hi Daniel,
I had a similiar problem yesterday.
Thanks to the nice people in this forum I was able to figured that out.
So here is a PL/SQL Oracle 9i code for your reference.
You can create and test it using the SQL Plus console.
I used this stored procedure in my VB .NET and worked fine!
I am enclosing the VB code in this reply as well.
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Good luck!
Amintas
create or replace package pkg_emp
AS
type rc_emp is ref cursor;
end;
create or replace
procedure SP_GetEmpData(v_empno IN emp.empno%Type,
v_ename IN emp.ename%Type,
emp_cur OUT pkg_emp.rc_emp)
is
begin
if v_empno is not null and v_ename is null then
OPEN emp_cur for
select empno,ename,sal
from emp
where empno=v_empno;
elsif v_ename is not null and v_empno is null then
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select empno,ename,sal
from emp
where ename like v_ename ||'%';
end if;
end;
/* Testing the stored procedure */
/*#1 */
var myresultset refcursor;
execute SP_GetEmpData(7900,null,:myresultset);
print myresultset;
/*#2 */
var myresultset refcursor;
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-x-x-x-x-x-x-x-x-x VB .NET CODE x-x-x-x-x-x-x-xx-x-
Private Sub btnSearch_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnProcurar.Click
Dim dr As Oracle.DataAccess.Client.OracleDataReader
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dr = GetData(CInt(Val(txtEmpNo.Text)), "")
Else
dr = GetData(0, UCase(txtEname.Text))
End If
txtEmpNo.Text = ""
txtEname.Text = ""
Catch ex As Exception
Response.Write(ex)
End Try
drgTest.DataSource = dr
drgTest.DataBind()
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Dim cn As New Oracle.DataAccess.Client.OracleConnection(ConfigurationSettings.AppSettings("ConnectionString"))
Dim cmd As New Oracle.DataAccess.Client.OracleCommand
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cmd.Connection = cn
cmd.CommandType = CommandType.StoredProcedure
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Exit Function
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Edited by: John Lau on Aug 14, 2012 12:47 PM
Edited by: John Lau on Aug 14, 2012 12:48 PM

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How to call discoverviewer in PL/SQL?

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