SQL script works in SQL Developer but not when scheduled

Question

I have a script that I can run, logged onto my server as a user with full permissions and into my database as SYSDBA, that produces a CSV file on the server when I run it from SQL Developer ON the server. HOWEVER, when I set it up as a scheduled job, using those SAME CREDENTIALS (same Windows/network user; same database user), I get no output. The job indicates that it's running successfully, but no file gets created.
Any advice is greatly appreciated.
Here's the script:
WHENEVER SQLERROR EXIT FAILURE;
     set serveroutput on
     DECLARE
     my_query varchar2(5000);
     BEGIN
     my_query := q'[
SELECT client_id, JOB_NAME, SCHEDULE_TYPE, TO_CHAR(START_DATE,'MM/DD/YYYY HH24:MM') AS START_DATE,
REPEAT_INTERVAL, ENABLED, STATE, RUN_COUNT,
TO_CHAR(LAST_START_DATE,'MM/DD/YYYY HH24:MM') AS LAST_START, LAST_RUN_DURATION,
TO_CHAR(NEXT_RUN_DATE,'MM/DD/YYYY HH24:MM') AS NEXT_RUN
FROM DBA_SCHEDULER_JOBS
WHERE instr(client_id,'10.') is not null
ORDER BY LAST_START_DATE DESC
     p2k.ccsd_any_query_to_csv('HRISEDB_E_OUTPUT_MK', 'dbserver_job_output.csv',my_query);
     end;
=================================================================
Here's the called procedure (I don't really understand it -- I gleaned it from others on the internet):
-- DDL for Procedure CCSD_ANY_QUERY_TO_CSV
set define off;
CREATE OR REPLACE PROCEDURE "CCSD_ANY_QUERY_TO_CSV" (p_dir in varchar2, p_filename in varchar2, p_query in varchar2) AUTHID CURRENT_USER
is
l_output utl_file.file_type;
l_theCursor integer default dbms_sql.open_cursor;
l_columnValue varchar2(4000);
l_status integer;
l_query long;
l_colCnt number := 0;
l_separator varchar2(1);
l_col_desc dbms_sql.desc_tab;
l_col_type varchar2(30);
l_datevar varchar2(8);
BEGIN
l_query := 'SELECT SYSDATE FROM DUAL; ';
dbms_sql.parse(l_theCursor, p_query, dbms_sql.native);
dbms_sql.describe_columns(l_theCursor, l_colCnt, l_col_desc);
l_output := utl_file.fopen( p_dir, p_filename, 'w' );
dbms_sql.parse( l_theCursor, p_query, dbms_sql.native );
for i in 1..l_col_desc.count LOOP
utl_file.put( l_output, l_separator || '"' || l_col_desc(i).col_name || '"' );
dbms_sql.define_column( l_theCursor, i, l_columnValue, 4000 );
l_separator := ',';
end loop;
utl_file.new_line( l_output );
l_status := dbms_sql.execute(l_theCursor);
while ( dbms_sql.fetch_rows(l_theCursor) > 0 ) loop
l_separator := '';
for i in 1 .. l_colCnt loop
dbms_sql.column_value( l_theCursor, i, l_columnValue );
utl_file.put( l_output, l_separator || '"' || l_columnValue || '"');
l_separator := ',';
end loop;
utl_file.new_line( l_output );
end loop;
dbms_sql.close_cursor(l_theCursor);
utl_file.fclose( l_output );
execute immediate 'alter session set nls_date_format=''dd-MON-yy'' ';
exception
when others then
execute immediate 'alter session set nls_date_format=''dd-MON-yy'' ';
raise;
end;
/

Answer 1

hello,
does oracle showing any errors in user_scheduler_job_run_details for this job ? I would advise try inserting some debug statement to identify where exactly its stuck. Also please check sample configurations syntax for user_scheduler_jobs.
Cheers
Sush