DBMS_SQL.PARSE to access remote objects

Question

I am using following code in a procedure ...
DBMS_SQL.PARSE (cur, vSQL, DBMS_SQL.NATIVE);
where variable vSQL can contain a remote object.
A DB link (with Fixed User option) exists to access that database.
The DB link is working. The remote object is accessible outside this procedure.
When this command is executed, I get ...
ORA-24374: define not done before fetch or execute and fetch
... error.
Can DBMS_SQL handle remote objects?
Oracle version is 9.2.0.5.0
Any help would be greatly appreciated.

Answer 1

Here is the code I am running ...
CREATE OR REPLACE PROCEDURE p_sql_valid_or_not_cnt
(vSQL IN VARCHAR2, vValid OUT NUMBER, vMessage OUT VARCHAR2, vCount OUT NUMBER) IS
-- Purpose: Returns 0 in vvalid if SQL is valid, else returns -1. Returns row count when SQL is valid.
-- Parameters:
-- IN : vSQL
-- OUT : vValid
-- OUT : vMessage
-- OUT : vCount
cur INTEGER := DBMS_SQL.OPEN_CURSOR;
fdbk INTEGER;
BEGIN
DBMS_SQL.PARSE (cur, vSQL, DBMS_SQL.NATIVE);
fdbk := DBMS_SQL.EXECUTE (cur);
vCount := 0;
LOOP /* Fetch next row. Exit when done. */
EXIT WHEN DBMS_SQL.FETCH_ROWS (cur) = 0;
vCount := vCount + 1;
END LOOP;
vValid := 0;
vMessage := 'No errors';
DBMS_SQL.CLOSE_CURSOR (cur);
END p_sql_valid_or_not_cnt;
To run ...
set serveroutput on
declare
i number;
m varchar2(500);
c number;
begin
p_sql_valid_or_not_cnt('SELECT * FROM TAB where 1 <> 1',i,m,c);
DBMS_OUTPUT.PUT_LINE(i);
DBMS_OUTPUT.PUT_LINE(m);
DBMS_OUTPUT.PUT_LINE(c);
end;
This runs fine.
But when I try to access an object from a remote server using DB link. I get the error ...
set serveroutput on
declare
i number;
m varchar2(500);
c number;
begin
p_sql_valid_or_not_cnt('SELECT * FROM REMOTE_SCHEMA.T_REMOTE@REMOTE_SERVER where 1 <> 1',i,m,c);
DBMS_OUTPUT.PUT_LINE(i);
DBMS_OUTPUT.PUT_LINE(m);
DBMS_OUTPUT.PUT_LINE(c);
end;
declare
ERROR at line 1:
ORA-24374: define not done before fetch or execute and fetch
ORA-06512: at "SYS.DBMS_SYS_SQL", line 1125
ORA-06512: at "SYS.DBMS_SQL", line 328
ORA-06512: at "IMEPAS.P_SQL_VALID_OR_NOT_CNT", line 16
ORA-06512: at line 6
I can run the SQL that I am passing as vSQL directly in SQLPLUS ...
This code in itself works.
SELECT * FROM
REMOTE_SCHEMA.T_REMOTE@REMOTE_SERVER
where 1 <> 1;
The user I am using to logon to my server is also there on REMOTE_SERVER.
The DB LINK is created by CONNECTED USER option. The user on REMOTE_SERVER has explict select access on the table (not via role) I am accessing.
Any help would be much appreciated.