Using SQL Loader in more than one table

Question

Hi all,
I have a new question for those who have used SQL Loader. I
have never used it and I just know that I need a control file to
tell SQL Loader what is my flat file layout and what table the
information goes to. My problem is: my flat file has information
that goes to two tables in my schema. Those files are very big
(aprox 280Mb) and I would like to read them just once. Can I do
this with SQL Loader?
Other question, is that the fastest way to import data from
flat files becouse I am using PERL and it takes aprox. 9 hours
to import 10 of those files. I could use UTL_FILE to read it but
I heard that SQL Loader was better.
Thanks for your cooperation
(Robocop)
Marcelo Lopes
Rio de Janeiro - Brazil

Answer 1

SQL*Loader is the fastest way to load, particularly in direct parallel mode, and can certainly load to multiple tables.
>
My advice would be to have a look at the examples given in the Oracle Utilities guide, there is one for loading to multiple
tables, which I have pasted below.
>
-- Loads EMP records from first 23 characters
-- Creates and loads PROJ records for each PROJNO listed
-- for each employee
LOAD DATA
INFILE ’ulcase5.dat’
BADFILE ’ulcase5.bad’
DISCARDFILE ’ulcase5.dsc’
REPLACE
INTO TABLE emp
(empno POSITION(1:4) INTEGER EXTERNAL,
ename POSITION(6:15) CHAR,
deptno POSITION(17:18) CHAR,
mgr POSITION(20:23) INTEGER EXTERNAL)
INTO TABLE proj
-- PROJ has two columns, both not null: EMPNO and PROJNO
WHEN projno != ’ ’
(empno POSITION(1:4) INTEGER EXTERNAL,
projno POSITION(25:27) INTEGER EXTERNAL) -- 1st proj
INTO TABLE proj
WHEN projno != ’ ’
(empno POSITION(1:4) INTEGER EXTERNAL,
projno POSITION(29:31 INTEGER EXTERNAL) -- 2nd proj
INTO TABLE proj
WHEN projno != ’ ’
(empno POSITION(1:4) INTEGER EXTERNAL,
projno POSITION(33:35) INTEGER EXTERNAL) -- 3rd proj
see the documentation for a complete explanation of the configuration.
Thanks, I will read it.