ORA-24338: statement handle not executed

Question

Hi,
My front end programming platform is .NET. Oracle DataBase is 10g.
I have written this package:
CREATE OR REPLACE package body USER_NAME.PACKAGE_TEST1 as
procedure getname(id1 number,tb_cursor out md_cursor)
as
begin
open tb_cursor for select name from testtable1 where id1=id;
close tb_cursor;
end getname;
end package_test1;In the front end i am using DataReader to fetch data.
But while Executing reader an error occurs that is "ORA-24338: statement handle not executed".
But when i remove "close tb_cursor" programm runs successfully.
What is the reason for that error ?

Answer 1

user12222356 wrote:
Tubby wrote:
A ref cursor is nothing more than a pointer to a statement (query).
So no, you do not want to make 1000 procedure calls. You want your ref cursor to be opened for a query that contains 1000 rows. The client calls your procedure ONE TIME and processes the entirety of the ref cursor (1000 rows), then closes the cursor that your procedure so graciously opened for them.But according to .NET(my front end platform) documentation DataReader fetches data from database row by row .each row at a time.That means when the procedure was first called REF CURSOR was opened and was open till all data are fetched.Means at the begining itself query was executed and all data was fetched and stored temporarily in the database, and then DataReader fetched those data row by row..i.e., after first call to procedure only fetching of data is done. NO opening,NO closing ,NO select query execution (that was referenced by REf CURSOR). And when all rows are fetched that open cursor is closed . Is my concept right here ?YOU opened the cursor (in your procedure).
The select query execution IS the ref cursor being processed by your DataReader.
The data is not temporarily stored in the database ... it persists there (unless someone deletes it) ... so that statement wasn't really correct. DataReader would just be reading the rows from the database (via the ref cursor)
I would assume DataReader will close the cursor for you, but i really don't know ... you'd have to ask a .not person about that.