Hi, does anyone know how can I insert a blob record in an oracle database?

I've tried this but it doesn't work:

cFile=FILETOSTR('c:\background1.jpg') * this file is 2k in size
cQuery = "insert into prueba_blob (blob_id,blob_1) values (1,"+cFile+")"
nReg=SQLEXEC(nHnd,cQuery,'curResult')

the message from oracle is:
missin comma
or
invalid caracter

Any ideas?
Thanks in advance