Application Express :: Unable To Upload CSV File Through 4.2 (Blob) To Oracle Table

I needed to create a page on my existing APEX application that would allow the user to upload a file, I followed an online tutorial where the user had created a dummy table and inserted CSV File inserted through APEX into the table. Following that simple example I am able to load the simple CSV file (from tutorial) into a dummy table (from tutorial) but when I attempt to insert actual/dummy data into my actual database (which has a lot more fields of different types), using the exact same process, I am unable to do so.

Ironically, I am unable to insert even dummy values despite the fact that I have been able to insert the same dummy values using SQL Developer. Icing on the cake is that APEX does not produce any error, this lack of debugging feature (especially line by line debugging) is such a pain. Just to add, I can load the values into an Array and can successfully print the delimited values off the array but am still unable to insert the same values into my table. Here is the table that I am attempting to insert into (actual names replaced by Dummyxx):

CREATE TABLE "TABLE"."STG" (
"DUMMY01" NUMBER,
"DUMMY02" NUMBER,
"DUMMY03" NUMBER,
"DUMMY04" DATE,
"DUMMY05" CHAR(3 BYTE),
[code].........     
                           
And here's the insertion process:

DECLARE

v_blob_data BLOB;
v_blob_len NUMBER;
v_position NUMBER;
v_raw_chunk RAW(10000);
v_char CHAR(1);
[code]..........

If I run a process to produce the output of the data array onto the screen, the values displayed are in the pattern desired.

Inserting Dummy values instead of values from the Array (v_data_array) to test

EXECUTE IMMEDIATE 'insert into TABLE.STG (DUMMY01, DUMMY02 ..... DUMMY65)

VALUES (
60040,
5,
TO_DATE("14-Dec-12","DD-MON-RRRR HH:MI:SS"),
"ABC",
"ABC",
60,
"11DEC1201",
"331",
"SCOTT TIGER",
"MARKETING",
[code].......

Note that all the the CSV does not contain all the fields, the CSV files that are expected to be entered into the system contain 65 Fields whereas the Table has 73 Fields. Also note that the process runs fine through SQL loader that is invoked through a different server which I need to release and hence the attempt to load the table this way. Also, the procedure on the SQL Loader server is quite complex and involved JAVA+Unix Shell Scripts etc. which I would prefer to avoid.