BLOB error: invalid arguments in call

Question

I created a table with 3 columns: PICID(Number), Pic(BLOB) and User(Varchar2[20]). I am using SQL Developer to create a new row and put a picture into the Pic column. When I try to save it, I get this:
One error savings changes to table "PICS":
Row 1: Invalid argument(s) in call.
What am I doing wrong?

Answer 1

Forigve me, I thought that the stuff I wrote before that would've been at least SOME help.
INSERT INTO "PICS" (PICID, PIC, INITIALS) VALUES ('1', empty_blob(), 'BOB')
SELECT PIC FROM "PICS" WHERE ROWID='AAATutAAEAAAAMUAAA' AND ORA_ROWSCN='4846781' FOR UPDATE
Invalid argument(s) in call
One error saving changes to table PICS":
Row 1: Invalid argument(s) in call
This is what SQL Developer comes up with after I click 'Load', browse for an image and put it into the PIC column.
I'm running 11g. What other information do you need? Thanks for your help, sorry to bother you.