sql loader control file multiple control - sql-loader

Question

I have raw data like this:
2002-3,X52.9418.001 , Abraham, Kennedy James, 111111111, 2125551234,ak123n#aol.com, 123 East 14th Street,, New York, NY,
2002,X52.9418.001 , Richard, Roberts, 111111112, 2125554321,rr345#aol.com, 123 East 14th Street, Apt.6 , New York, NY, 10010, United States, English
2002-4,X52.9418.001 , Katherine Ray Baird , 111111113, [phone],kbilu#aol.com, 123 East 14th Street,, New York, New York, 10010-, ,
...
I need to load the raw data into the Oracle database using Sql Loader. I create this control file:
load data
infile '/home/l/liuh/rawdata.txt'
badfile '/home/l/liuh/badfile.bad'
discardfile '/home/l/liuh/discardfile.discard'
into table students
trailing nullcols (
Year INTEGER EXTERNAL terminated by "-",
Semester terminated by ",",
department terminated by ".",
course_number terminated by ".",
session_number terminated by ",",
first_name CHAR(10) terminated by " ",
Middle_name CHAR(15) terminated by ",",
last_name CHAR(15) terminated by ",",
id INTEGER EXTERNAL terminated by ",",
area_code terminated by " ",
phone_number terminated by ",",
email_address CHAR terminated by ",",
Street1 terminated by "," ,
street2 terminated by "," ,
city terminated by "," ,
State_prov terminated by "," ,
postal_code terminated by "," ,
country terminated by "," ,
language terminated by ","
)
But I got nothing into the database. Can somebody help me with the control file? I fount it difficult to control the data. Thanks.