SQL Loader and conditions

Question

Hello,
I have a table:
mytable(ID number,
file varchar2(256),
data blob)
and I try to migrate data (blob) with file and id from my table
my input.dat file would be containt the ID
input file(1,2,3,4,5,6,...)
and control file Would be:
LOAD DATA INFILE 'INPUT.dat'
INTO TABLE mytable
FIELDS TERMINATED BY ';'
"DATA" LOBFILE(file) TERMINATED BY EOF
where ID= (1..6)
is it possible to migrate only blob data???in a partial full table (with id and file)?????
thanks for answer
@+ rosagio

Answer 1

Hello,
You can create a trigger and sequence on id column and it will automatically generate an id for you. But you cannot reuse whatever you have in the table for id and file_name. So you need to load file. YOu can either delete (REPLACE/TRUNCATE INTO keywords ) old records or you can APPEND, this goes in your control file
CREATE SEQUENCE MY_SEQ
  START WITH 401
  MAXVALUE 999999999999999999999999999
  MINVALUE 0
  NOCYCLE
  NOCACHE
  NOORDER;
CREATE OR REPLACE TRIGGER mytable_trg
   BEFORE INSERT
   ON MYTABLE   FOR EACH ROW
BEGIN
   IF :NEW.id IS NULL
   THEN
      SELECT my_seq.NEXTVAL
      INTO :new.id
      FROM DUAL;
   END IF;
END;
/#control file
load data
infile 'input.dat'
replace into table mytable
fields termated by ';'
file FILLER char(256),
data LOBFILE(file) TERMINATED BY EOF
)Regards