Recently, one of mycert’s internal project required that PDF files to be saved into the database (MyQL). Since its is not easy to find the sample code via Google,  here’s a quick note for future reference. fContent = File.open(“/path/file”, “wb”).read() db = Mysql.new(‘localhost’, ‘user’, ‘password’, ‘database’) st = db.prepare(“insert into tableA( fieldBlob) values (?)”) st.execute(fContent) […]