Nico de Groot, thank you for example and attention! I already have crud 
form and that form work. It load files in folder 'uploads'. I want to save 
that files in database now. I sure that 
stream=open(filepath + '\\' + i.file, 'rb')
and
stream.read()
made a long base64 string because I saw it on site. Then I decoded it and 
got picture.
Also I tried to save that file as usual SQL request in Firebird and web2py 
interfaces, where field DATA conteined string in base64. Like that:
INSERT INTO bin_files (PARENT, SRC_FILENAME, DATA) VALUES (33,'name.jpg','very 
very long base64 string').
After that Firebird has hanged. Web2py given an error message.
Just in case, are there between names 'DATA' and 'DATAblob'?
Yesterday and today I can't test all again because it's day off.
Raul Monares, thank you too! I cheked file that contain string in base64 
and it's sise 440kb. It's more then size of file in the beginning (name.jpg 
- 322kb). What should I do in that case, after all blob field can store 
large files.

-- 
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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