SQL & PL/SQL :: Import Data From Csv To Temp Then Alter Data As It Goes Into Another Table?

I need to import some data from .csv files. There is one file each day, so I want them to be automatically imported into the DB. This is the format it comes in:

DSM,LOD,20120524,01,01,9999AMP02,1.1262240,M,0.6397380,M
DSM,LOD,20120524,01,02,9999AMP02,1.1315700,M,0.6450840,M
DSM,LOD,20120524,01,03,9999AMP02,1.1297880,M,0.6450840,M

I want this data to go into TEMP_TABLE. It then needs to reformatted as it goes from temp_table to my_table:

filename,readingID, field1,field2,date,num1,num2,meterid,read1,m1,read2,m2

so filename is the actual name of the .csv file that this row came from. And reading id is date, num1, num2, meterid combined. And the remaining fields coming from temp_table

This is what I have:

procedure import_data()
begin
TEMPFILENAME CHAR(60)='DSM_2010_Husky_Oil_20120525064122_20120525065011.csv';
create table temp_table
(dsm char(3),lod char(3),usage_date date,he char(2),reading char(2),loc_id char(9),mwh number(15,10),eormmwh char(1),mvar number(15,10),eormmvar char(1));

[code]....

, which does not work at all.