Flat file not created

Question

when i run the procedure i created, the flat file is not created in the specified directory....can someone tell me why?
the procedure is below. thanks
PROCEDURE po_creation IS
fHandle UTL_FILE.FILE_TYPE;
sc_shipcode varchar2(3); -- XX
sc_po_no varchar2(14);-- orderform.FORMNO VARCHAR2(20)
sc_po_status varchar2(1);-- orderform.orderformstatus number(1)
sc_ol_status varchar2(1); -- XX
sc_vender_no varchar2(10);-- sparetype.makerid number(9)
sc_credate date; -- orderform.CREATEDDATE DATE
sc_lastdelivery_date date; --orderform.LATESTDELIVERYDATE date
sc_gl_acccode varchar2(30); -- XX
sc_curr_code varchar2(3); -- orderline.CURRENCYCODE CHAR(3)
sc_freigtt_vendor varchar2(15); -- XX
sc_orderline_no number(4,0);-- orderline.orderlineno NUMBER(4)
sc_contact_no varchar2(40); -- XX
sc_description varchar2(40);-- orderline.NAME VARCHAR2(60)
sc_price number(12,2);-- orderline.PRICE NUMBER(12,2)
sc_quantity number(12,2); -- [sparepartlog.quantity NUMBER(9,2)](coded item) OR [orderline.received NUMBER(9,2) - orderline.sapqtyreceived NUMBER(9)](non coded items)
sc_unit varchar2(15); --unit.name VARCHAR2(15)
sc_discount_val number(12,2);-- orderform.SHIPPING NUMBER(12,2)
sc_discount_per number(5,2); -- orderline.DISCOUNT NUMBER(5,2)
sc_partno varchar2(40); -- sparetype.parttypeno varchar2(30)???
sc_makerref varchar2(40); -- orderline.MAKERREF VARCHAR2(50)
sc_po_user varchar2(40); -- orderform.CREATEDBY NUMBER(9)
sc_order_date date; -- orderform.ORDEREDDATE DATE
sc_asset_no varchar2(16); --orderline.COMMENT2 VARCHAR2(40)
sc_receive_date date; --orderform.receiveddate date(coded item) sparepartlog.transdate date (non coded item)
Cursor my_cursor is
select substr(a.formno,1,3), substr(a.formno,1,14), a.formstatus, a.formstatus, d.makerid, to_date(a.createddate,'YYYYMMDD'),
to_date(a.latestdeliverydate,'YYYYMMDD'),b.budgeted ,b.currencycode,substr(b.name,1,15),b.orderlineno ,b.comment1, substr(b.name,1,40),b.price,
substr(c.quantity,1,12),/*substr( b.received,1,12), substr(b.starcruises_sap_qty_received,1,12),*/e.name , a.shipping , b.discount,
substr(d.parttypeno,1,40), substr(b.makerref,1,40), to_date(a.createdby,'YYYYMMDD'),to_date(a.ordereddate,'YYYYMMDD'),
b.comment2,to_date(a.receiveddate,'YYYYMMDD')--, to_date(c.transdate,'YYYYMMDD')
from orderform a, orderline b, sparepartlog c, sparetype d, unit e
where a.orderid=b.orderid
and b.unitid=e.unitid
and a.orderid=c.orderid
and e.unitid=d.stockunitid
and rownum < 10 ;-----------testing purpose
Begin
fHandle := UTL_FILE.FOPEN('c:\pete','po.txt','w');
UTL_FILE.PUT_LINE (fHANDLE,to_char(sysdate,'YYYYMMDD'));
open my_cursor;
LOOP
FETCH my_cursor into sc_shipcode, sc_po_no,sc_po_status ,sc_ol_status ,sc_vender_no,sc_credate, sc_lastdelivery_date,
sc_gl_acccode,sc_curr_code ,sc_freigtt_vendor,sc_orderline_no ,sc_contact_no,sc_description,
sc_price,sc_quantity,sc_unit,sc_discount_val,sc_discount_per,sc_partno,sc_makerref,sc_po_user,
sc_order_date ,sc_asset_no ,sc_receive_date;
EXIT WHEN
my_cursor%NOTFOUND;
/*check the lenght of each colum to be written to text file*/
sc_shipcode:=RPAD(sc_shipcode,3,'');
sc_po_no:=RPAD(sc_po_no,14,'');
sc_po_status:=RPAD(sc_po_status,1,'');
sc_ol_status:=RPAD(sc_ol_status,1,'');
sc_vender_no:=RPAD(sc_vender_no,10,'');
sc_gl_acccode:=RPAD(sc_gl_acccode,30,'');
sc_curr_code:=RPAD(sc_curr_code,3,'');
sc_freigtt_vendor:=RPAD(sc_freigtt_vendor,15,'');
sc_orderline_no:=RPAD(sc_orderline_no,4,'');
sc_contact_no:=RPAD(sc_contact_no,40,'');
sc_description:=RPAD(sc_description,40,'');
sc_price:=RPAD(sc_price,12,'');
sc_quantity:=RPAD(sc_quantity,12,'');
sc_unit:=RPAD(sc_unit,15,'');
sc_discount_val:=RPAD(sc_discount_val,12,'');
sc_discount_per:=RPAD(sc_discount_per,5,'');
sc_partno:=RPAD(sc_partno,40,'');
sc_makerref:=RPAD(sc_makerref,40,'');
sc_po_user:=RPAD(sc_po_user,40,'');
sc_asset_no:=RPAD(sc_asset_no,16,'');
/*write to file */
UTL_FILE.PUT_LINE( fHandle,sc_shipcode||sc_po_no||sc_po_status||sc_ol_status||sc_vender_no||sc_credate||sc_lastdelivery_date
||sc_gl_acccode||sc_curr_code||sc_freigtt_vendor||sc_orderline_no||sc_contact_no||sc_description||sc_price||
sc_quantity||sc_unit||sc_discount_val||sc_discount_per||sc_partno||sc_makerref||sc_po_user||
sc_order_date||sc_asset_no||sc_receive_date);
END LOOP;
close my_cursor;
--commit;
--message('1');pause;
utl_file.fclose(fHandle);
--message('2');pause;
exception
     when no_data_found then
     null;
when others then
     null;
--     WHEN UTL_FILE.INVALID_PATH THEN
-- message('Invalid Path');pause;
End;

Answer 1

If you are using 9i then you can Create a Directory instead of setting the ult_file_dir parameter in the init file. The user creating the directory need CREATE DIRECTORY privilege
Example: Create directory MY_DATA as 'c:\pete' ;
And here is the list of exceptions (using 9i)
INVALID_PATH          File location is invalid.
INVALID_MODE          The open_mode parameter in FOPEN is invalid.
INVALID_FILEHANDLE          File handle is invalid.
INVALID_OPERATION          File could not be opened or operated on as requested.
READ_ERROR          Operating system error occurred during the read operation.
WRITE_ERROR          Operating system error occurred during the write operation.
INTERNAL_ERROR          Unspecified PL/SQL error
CHARSETMISMATCH           A file is opened using FOPEN_NCHAR, but later I/O operations
               use nonchar functions such as PUTF or GET_LINE.
FILE_OPEN           The requested operation failed because the file is open.
INVALID_MAXLINESIZE     The MAX_LINESIZE value for FOPEN() is invalid; it should be
               within the range 1 to 32767.
INVALID_FILENAME          The filename parameter is invalid.
ACCESS_DENIED          Permission to access to the file location is denied.
INVALID_OFFSET          The ABSOLUTE_OFFSET parameter for FSEEK() is invalid; it
               should be greater than 0 and less than the total number of bytes
               in the file.
DELETE_FAILED          The requested file delete operation failed.
RENAME_FAILED          The requested file rename operation failed.
You can also have NO_DATA_FOUND, VALUE_ERROR