Re: Can I convert export file into sqlldr file?

You can use this script to generate somthing similar to what you are looking for, but reading from the databse NOT the Export file. Please note that this script works on table(s) level, but you can modifiy it to work on as many tables you want..!

SET ECHO off

REM ------------------------------------------------------------------------

--
REM REQUIREMENTS:
REM    SELECT on the given table(s)
REM ------------------------------------------------------------------------
--
REM PURPOSE:
REM    Generates a sql*plus script to unload a table to a file and a
REM    SQL*Loader script to reload the same data.  Intent is to create
REM    a faster alternative to export/import.
REM ------------------------------------------------------------------------
---

set tab off
set heading off heading off feedback off echo off verify off space 1
pagesize
0 linesize 120
accept owner             prompt 'What schema owns the table to be unloaded?
'
accept table_name        prompt 'What table is to be unloaded? '
accept default_precision prompt 'What TOTAL number of digits should be
reserved for numbers without defined precision? '
accept default_scale     prompt 'What number of DECIMAL digits should be
reserved for numbers without defined scale? '
---------------------------------------------------
--  Generate the unload script
---------------------------------------------------
spool unload_fixed2.sql
select 'SET HEADING OFF FEEDBACK OFF ECHO OFF VERIFY OFF SPACE 0 PAGESIZE 0
TERMOUT OFF'
  from dual


/


--Calculate the sum of all output field lengths and set the output record
size
select 'SET LINESIZE '
       || (sum(decode(data_type,
                      'CHAR',data_length,
                      'VARCHAR',data_length,
    'VARCHAR2',data_length,
                      'DATE',14,
   'NUMBER',decode(data_precision,
                                   '',&default_precision+2,

greatest(data_precision-data_scale,1)+decode(data_scale,0,0,1)+data_scale)+1
,
                      'FLOAT',&default_precision+2,
           data_length)))
  from dba_tab_columns
 where owner=upper('&&owner')
   and table_name=upper('&&table_name')


/


--  Generate an appropriate SQL*Plus COLUMN command to control formatting of
each output field
select 'COLUMN ' || rpad('"'||column_name||'"',32)
       || ' FORMAT '
       || rpad(decode(data_type,
                   'CHAR','A'||data_length,
                   'VARCHAR2','A'||data_length,
                   'VARCHAR','A'||data_length,
   'DATE','A14',
                   'NUMBER',decode(data_precision,
                       '',
rpad('0',&default_precision-&default_scale,'9')||'.'||rpad('9',&default_scal
e,'
9'),

rpad('0',greatest(data_precision-data_scale,1),'9') ||
decode(data_scale,0,'','.')
                       ||
decode(data_scale,0,'',rpad('9',data_scale,'9'))),

'FLOAT',rpad('0',&default_precision-&default_scale,'9')||'.'||rpad('9',&defa
ult
_scale,'9'),
                 'ERROR'),40)
       || ' HEADING ''X'''
  from dba_tab_columns
 where owner=upper('&&owner')
   and table_name=upper('&&table_name')
 order by column_id


/


--  Generate the actual SELECT statement to unload table data
select 'SPOOL /tmp/&&owner..&&table_name..DAT'
  from dual


/

column var1 noprint
column var2 noprint
select 'a' var1, 0 var2, 'SELECT '
  from dual
union
select 'b', column_id, decode(column_id, 1, '    ', '  , ')
                       ||
decode(data_type,'DATE','to_char('||'"'||column_name||'"'||',''YYYYMMDDHH24M
ISS
'') '||'"'||column_name||'"'  ,
                       '"'||column_name||'"')
  from dba_tab_columns
 where owner=upper('&&owner')
   and table_name=upper('&&table_name')
union
select 'c', 0, 'FROM &&owner..&&table_name'
from dual
union
select 'd', 0, ';'
  from dual
 order by 1,2


/

select 'SPOOL OFF'
  from dual


/

select 'SET TERMOUT ON'
  from dual


/


spool off
----------------------------------------------------------------------------
-
--  Generate the SQL*Loader control file
----------------------------------------------------------------------------
-
set lines 120 pages 0
spool &&owner..&&table_name..CTL
select 'a' var1, 0 var2, 'OPTIONS(DIRECT=TRUE)'
  from dual
union
select 'b', 0, 'LOAD DATA'
  from dual
union
select 'c', 0, 'INFILE  ''/tmp/&&owner..&&table_name..DAT'''
  from dual
union
select 'd', 0, 'BADFILE  &&owner..&&table_name..BAD'
  from dual
union
select 'e', 0, 'DISCARDFILE  &&owner..&&table_name..DSC'
  from dual
union
select 'f', 0, 'DISCARDMAX 999'
  from dual
union
select 'm', 0, 'INTO TABLE &&owner..&&table_name'
  from dual
union
select 'n', column_id,
rpad(decode(column_id,1,'(',',')||'"'||column_name||'"',31)
                       || decode(data_type,
 'CHAR','CHAR('||data_length||')',
                                 'VARCHAR','CHAR('||data_length||')',
                             'VARCHAR2','CHAR('||data_length||')',
                    'DATE','DATE(14) "YYYYMMDDHH24MISS"',
 'NUMBER','DECIMAL
EXTERNAL('||decode(data_precision,

'',&default_precision+2,

greatest(data_precision-data_scale,1)+decode(data_scale,0,0,1)+data_scale+1)
              ||')',
                                 'FLOAT','DECIMAL
EXTERNAL('||to_char(&default_precision+2)||')',
  'ERROR--'||data_type)
                       || ' NULLIF ("' ||column_name||'" = BLANKS)'
  from dba_tab_columns
 where owner = upper('&&owner')
   and table_name = upper('&&table_name')
union
select 'z', 0, ')'
  from dual
 order by 1, 2


/


spool off

----------------------------------------------------------------------------
-
--  Cleanup
----------------------------------------------------------------------------
-
clear column
clear break
clear compute
undef owner
undef table_name
undef default_precision
undef default_scale