Having problem in recognising file using utl_file package..

Question

Hi,
I am using utl_file utility to read the CSV file, utl_file.fopen function is useed to open file. This fopen function has three input parameters, second parameter is file name. My problem is that, i have to read file on daily basis. File name will be like:- DDMMYYYYHHMISS. Last six characters are for hour minute second of the file generation time. If the name has only DDMMYYYY then I can give the file name like TO_CHAR(SYADATE,'DDMMYYYY'), because on a particular date its same for the whole day. But hours, minutes and seconds will be of the time when the file is generated, it may be different for different days. In this condition how can I standardize the value for file name parameter in fopen function.
Thanks in advance.

Answer 1

Bharat Kaushik wrote:
Actually.....
I am gettting file from some other place..... And those people are not agreed to send file without exact time.JAVA solution is here
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:7506780031005
Or if you want PL/SQL .. (May Be kiddy)
--Please Note: SYSDATE is 26th in our DB.
SQL> declare
  2   fp utl_file.file_type;
  3   dt date := trunc(sysdate);
  4  begin
  5   while (dt <= sysdate) loop
  6    begin
  7      fp := utl_file.fopen('OGL_REPORT_ACCESS','TEST'||to_char(dt,'ddmmyyyyhh24miss')||'.csv','r');
  8      dbms_output.put_line('TEST'||to_char(dt,'ddmmyyyyhh24miss'));
  9      utl_file.fclose(fp);
10      exit;
11    exception
12     when utl_file.INVALID_OPERATION then
13      null;
14    end;
15    dt := dt + 1/24/60/60;
16   end loop;
17  end;
18  /
TEST26042009010102
PL/SQL procedure successfully completed.
Elapsed: 00:00:03.45
SQL> select sysdate from dual;
SYSDATE
26-APR-09