RE: Writing text file from PL/SQL block

From: Amar Kumar Padhi <amar.padhi_at_gmail.com>
Date: Tue, 4 Sep 2007 08:13:11 +0400 (GST)
Message-ID: <4048310.85321188893483963.JavaMail.seven@aomfe4p1>

Hi Anju,
You can format Col Output before sending it to file. Here is one Sample I just tried on 10g. Let us know if you are getting stuck somewhere. One point to highlight: the files are generated on database server, security (if you have one) may Object to this. In our env. Interfaces are to be dealt with on Mid-tier.

AM01:AMAR> create or replace directory tmp as '/tmp/'; Directory created.

create or replace procedure utl_file_io is l_fil utl_file.file_type;
l_buf varchar2(200);
begin

 l_fil := utl_file.fopen('TMP', 'amar_test.t', 'W');
 utl_file.put_line(l_fil, 'This is a sample text file.');
 utl_file.put_line(l_fil, 'Generated from Oracle utl_file package.');
 utl_file.put_line(l_fil, 'Below is the content of am1010 table.');

for rec in (select col1, col2 from am1000) loop utl_file.put_line(l_fil, rpad(rec.col1, 15, ' ') || rec.col2); end loop;
utl_file.put_line(l_fil, 'End of File'); utl_file.fclose(l_fil);

l_fil := utl_file.fopen('TMP', 'amar_test.t', 'R'); loop
utl_file.get_line(l_fil, l_buf);
dbms_output.put_line(l_buf);
end loop;
exception
when no_data_found then
utl_file.fclose(l_fil);
end;
/

AM01:AMAR> exec utl_file_io
This is a sample text file.
Generated from Oracle utl_file package.
Below is the content of am1010 table.
1 this
2 is
3 testing
4 output
End of File

PL/SQL procedure successfully completed.

-----Original Message-----
From: "Anju Bala" <oraclebala_at_gmail.com> To: "oracle-l_at_freelists.org" <oracle-l_at_freelists.org> Sent: 3/09/07 2:12 PM
Subject: Writing text file from PL/SQL block

hi list,

I have a strange but interesting problem. I have three tables with below structure , I need to generate a text file using a PL/SQL block on the basis of below criteria:

Table1 structure

dealerid number;name varchar2(100);age number(3);sex char(1);

table2 structure

feed_id number(10);feed_name varchar(20);feed_format clob;

table3 structure

feed_id number(10);column_name varchar2(100); -- to store the column name of table1
column_position number(2); -- to store at what position column of table1 should be written
application_id number(4); -- to store what application it is

scenario1

i have to generate a text file from PL/SQL block wherein table1 column data should be written based on the position mentioned in table3. for example if dealerid is in 3 position,name is in 1 and age is in 2 position then my text file should contain data something like :

name,age,position

Scenario2

if table3 doesnt contain any record for any column of table1 then that column should not be written.

I know it can only be done using UTL_FILE package but dont know how to achieve it? I would really be obliged if anyone can provide with a sample block to achive this to me.

Please

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Received on Mon Sep 03 2007 - 23:13:11 CDT