Parsing data from a BLOB

Question

I am relatively new to oracle, however I've been working with other databases for years.
I would like to load a csv file into a blob record and then parse that record to populate a separate table.
Ideally I would use Applications Express to allow a user to upload the file then trigger a procedure to parse the file.
It seems that the simplest approach to this is to call SQL*Loader and direct the blob to be the input to SQL*Loader but
I can't find if this is possible or how to do it. I'm open to other approaches however my choice to upload to a blob file in the first place is have access to the original file when necessary and to avoid having hundreds of unorganized file system files.
The csv file is a simple 3 field file that may typically contain anywhere from a dozen records to 1,000 records.
The resulting parsed records would then be filled with additional information from cross referenced tables.
The csv file is created by a hand held data collector and used to create orders for a chain of retail stores.
Suggestions?

Answer 1

Hello,
the blob gives a length of 61, but the inputStream image cannot give a size by available(). I am stuck here. Please help,
walter
try{
pstmt = conn.prepareStatement("SELECT " +
"aggraph " +
"FROM antigenic_t "+
"WHERE agid = ?");
pstmt.setString(1, refid);
rset = pstmt.executeQuery();
if(rset.next()){             
Blob blob = rset.getBlob("aggraph");
log.info("BLOB length @@@@ ---> :" + blob.length());
image = blob.getBinaryStream();
log.info("inputStream length @@@@ ---> :" + image.available());
}