Is there any way I can convert my file, which could be of any type like a doc file,exe,pdf etc. to binary form and store it in the database. Oracle has a datatype BLOB which can store binary objects.

Also is there some way I can read the data from the database which is a file stored in binary format and convert it into the actual file i.e. a.doc stored as blob should be retrieved as a.doc, a.exe should be retrieved as a.exe.