TEST.CTL file:

load data
infile 'test.txt'
badfile 'test.bad'
discardfile 'test.dsc'
replace
into table try
fields terminated by ";"
(code, name)

> sqlldr username/password@database control=test.ctl

CONNECT SYSTEM/password@database

CREATE OR REPLACE DIRECTORY ext_dir AS 'c:\temp';

GRANT READ, WRITE ON DIRECTORY ext_dir TO scott;

CONNECT scott/tiger@database

CREATE TABLE EXT_TABLE_TEST 
(  code         NUMBER,
   name         VARCHAR2(10)
)
ORGANIZATION EXTERNAL
( TYPE oracle_loader
  DEFAULT DIRECTORY ext_dir
  ACCESS PARAMETERS 
  ( RECORDS DELIMITED BY NEWLINE
    FIELDS TERMINATED BY ';'
    MISSING FIELD VALUES ARE NULL
  )
  LOCATION ('test.txt')
)
REJECT LIMIT UNLIMITED
/

INSERT INTO TRY (code, name) (SELECT code, name FROM ext_table_test);