in reply to DBI file input to blob

Not to be persnickety, but what is your question?

I don't normally write responses like this, but you probably should show us some code and tell us what kind of errors you are getting.

I also suggest writing the database routines distinctly from writing the CGI/Form-handling routines. That way you can exercise and test the database routines separately. Once you have that, you make sure your CGI script is able to even receive the text/file and capture it in a variable (think "echo input back to user"). Once both pieces work independently, you link them together by replacing your CGI echo routine with a call to your database input routine using your variable as an input.