Re: Oracle Data Unloader Tool

From: Suresh Bhat <suresh.bhat_at_mitchell-energy.com>
Date: 1998/06/04
Message-ID: <01bd900d$d035c000$a504fa80@mndnet>#1/1

Here is a script than can give you the ASCII dump. As you can see, I did not write it. Jared Still wrote it. Its beautiful !!!

suresh.bhat_at_mitchell-energy.com

• dump.sql - jared still
• jkstill_at_bcbso.com
• jkstill_at_teleport.com
  --
  
• dump a table to a comma delimited ascii file
• only drawback is line length is likely to be padded with
• quite a few spaces if the 'set trimspool on' option is
• not in your version of SQLPLUS
  --
  
• also builds a control file and a parameter file for SQL*LOADER

set trimspool on
set serverout on
clear buffer
undef dumpfile
undef dumptable
undef dumpowner
var maxcol number
var linelen number
var dumpfile char(40)
col column_id noprint
set pages0 feed off termout on echo off verify off accept dumpowner char prompt 'Owner of table to dump: ' accept dumptable char prompt 'Table to dump: ' begin

        select max(column_id) into :maxcol
        from all_tab_columns
        where table_name = rtrim(upper('&dumptable'))
        and owner = rtrim(upper('&dumpowner'));
        select sum(data_length) + ( :maxcol * 3 ) into :linelen
        from all_tab_columns
        where table_name = rtrim(upper('&dumptable'))
        and owner = rtrim(upper('&dumpowner'));

end;
/
print linelen
print maxcol
spool ./_dump.sql

select 'set trimspool on' from dual;
select 'set termout off pages 0 heading off echo off' from dual;
select 'set line ' || :linelen from dual;
select 'spool ' || lower('&dumptable') || '.txt' from dual;
select 'select' || chr(10) from dual;
select '   ' || '''' || '"'  || '''' || ' || ' ||
        'replace(' || column_name || ',' || '''' ||  '"' || '''' || ') '
        || ' ||' || '''' || '",' || '''' || ' || ',
        column_id

from all_tab_columns
where table_name = upper('&dumptable')
and owner = upper('&dumpowner')
and column_id < :maxcol
union
select ' ' || '''' || '"' || '''' || ' || ' ||

        'replace(' || column_name  || ',' || '''' ||  '"' || '''' || ') '
        || ' ||' || '''' || '"' || '''',
        column_id

from all_tab_columns
where table_name = upper('&dumptable')
and owner = upper('&dumpowner')
and column_id = :maxcol
order by 2
/

select 'from &dumpowner..&dumptable' from dual;
select '/' from dual;
select 'spool off' from dual;

spool off
@@_dump
set line 79
-- build a basic control file

spool _dtmp.sql
select 'spool ' || lower('&dumptable') || '.par' from dual; spool off
@@_dtmp  

select 'userid = /' || chr(10) ||

        'control = ' || lower('&dumptable') || '.ctl' || chr(10) ||
        'log = ' || lower('&dumptable') || '.log' || chr(10) ||
        'bad = ' || lower('&dumptable')|| '.bad' || chr(10)

from dual;
spool _dtmp.sql
select 'spool ' || lower('&dumptable') || '.ctl' from dual; spool off
@@_dtmp
select 'load data' || chr(10) ||

        'infile ' || ''''|| lower('&dumptable') || '.txt' || '''' || chr(10) ||

        'into table &dumptable' || chr(10) ||
        'fields terminated by ' || '''' || ',' || '''' ||
        'optionally enclosed by ' || '''' || '"' || '''' || chr(10)

from dual;
select '(' from dual;
select ' ' || column_name || ',' ,

        column_id
from all_tab_columns
where table_name = upper('&dumptable')
and owner = upper('&dumpowner')
and column_id < :maxcol
union
select ' ' || column_name, column_id
from all_tab_columns
where table_name = upper('&dumptable')
and owner = upper('&dumpowner')
and column_id = :maxcol
order by 2
/
select ')' from dual;
exit  

Andy Hering <andy_hering_at_forecross.com> wrote in article <356D8634.968F778D_at_forecross.com>...

> Hi,
> 
>  I am looking for a way to do the opposite of SQL*LOADER, bascially to
> unload data in a table in my database to an ASCII flatfile.  I know I
> can do this in Sybase and MSSQL using the BCP command.  However, in
> Oracle, there doesn't seem to be a tool that allows me to do this.  Does
> SQL*LOADER have any "hidden" options to do this?   Has anybody found a
> way to do this?
> 
>  I know there are some third party tools that do this kind of thing, but
> I wanted to avoid using them unless for some reason you can download
> them for free.  I am trying to write a shell script that will bascially
> unload data from a table in a database using whatever the vendor
> supplies.  In the case of Sybase and MSSQL, I can use BCP; Informix has
> UNLOAD.  However, with Oracle I seem to be stuck.  Any suggestions?
> 
> Thanks,
> Andy
> 
> P.S. -> I know I can use svrmgrl or sqlplus to perform the select and
> save the output to a file, but I was also trying to avoid using this.
> 
> 
 

Received on Thu Jun 04 1998 - 00:00:00 CDT