Sql loader master detail tables

Question

Hi
I am trying to load master detail tables using sql loader. I have a sequence in the master table as primary key and have to load primary key in detail table. is there any way i can query up the primary key by name in the control file. please whats the best way to do this.
can i query up the primary key in the master table by the name in detail table which is jan09.
e.g
master data
jan09,description
detail data
jan09,'test1','100,'y'
LOAD DATA
INFILE 'test.data'
insert
INTO TABLE master_table
fields terminated by ',' optionally enclosed by '"' trailing nullcols
(id position(1:2) "myseq.nextval",
code char,
creation_date date sysdate,
last_update_date date sysdate,
into TABLE BDETAILS
fields terminated by ',' optionally enclosed by '"' trailing nullcols
(id number "select id from master_table where code=" || :code
name char,
amt decimal,
flag char
)

Answer 1

Hey Here is what you need.
You will have to understand and test this properly.
It took me quiet some time before i could get to this stage
Here is the test data with all the commands.
As far the ID in the detail table is concerned you have no option but to update that column once the loading is complete.
1) create Table
CREATE TABLE master_table(ID NUMBER,code VARCHAR2(50),creation DATE,last_update DATE);
CREATE TABLE bdetails(ID NUMBER,NAME VARCHAR2(100),amt NUMBER,flag VARCHAR2(10));
ALTER TABLE master_table ADD (chc VARCHAR2(10));2) Create Sequence
CREATE SEQUENCE testseq INCREMENT BY 1;3) CTL FILE
LOAD DATA
INFILE 'c:\sqlldr\test.txt'  /*path of data file */
append
INTO TABLE master_table
when (1) ='M'  /*to check if the record in the data file is a master record */
fields terminated by ',' optionally enclosed by '"' trailing nullcols
(id  expression "testseq.nextval", /*select next value from sequence */
mcol1 filler, /*FILLER keyword is sused to skip first column from data file */
chc,
code  ,
creation "sysdate",
last_update "sysdate"
Into TABLE BDETAILS
when (1) ='D'  /*to check if the record in the data file is a Detail record */
fields terminated by ',' optionally enclosed by '"' trailing nullcols
(id  expression "testseq.currval", /* UNFORTUNATELY THIS PICKS UP THE LAST ID OF THE MASTER RECORD SESSION STUFF GOING ON HERE*/
col1 filler position(1:2),  /* specifying this POSITION(1:2) is very very important as you need to reset the cursor to start of the line for the next record */
name  ,
amt ,
flag )4) SQLLDR Command
sqlldr scott/tiger data=c:\sqlldr\test.txt control=c:\sqlldr\1.ctl
5) data file
M,jan09,description
D,test1,100,y
M,feb09,description1
D,test2,200,x
M,mar09,description2
D,test3,200,xHope this helps you and give you a lead how to proceed.
Cheers!!!
Bhushan