how to save bytes data in a csv file and insert it in android sqlite blob field -


i have image save blob in sqlite database,now want image blob data saved on file , need insert blob data file database.i want done pragmatically done using android.any ideas how it?don't tell me show research have done.i'm new android programming , trying learn.so please me.

omg not duplicate question.the question how fetch blob data database , save in seperate file(may b csv file) , insert bytes data file sqlite db.

try {         c = db.rawquery("select * " + table_name_user_profile, null);         int rowcount = 0;         int colcount = 0;         file sdcarddir = environment.getexternalstoragedirectory();         string filename = "userprofile.csv";          // name of file export         file savefile = new file(sdcarddir, filename);         filewriter fw = new filewriter(savefile);          bufferedwriter bw = new bufferedwriter(fw);         rowcount = c.getcount();         colcount = c.getcolumncount();         if (rowcount > 0) {             c.movetofirst();              (int = 0; < colcount; i++) {                 if (i != colcount - 1) {                      bw.write(c.getcolumnname(i) + ",");                  } else {                      bw.write(c.getcolumnname(i));                  }             }             bw.newline();              (int = 0; < rowcount; i++) {                 c.movetoposition(i);                  (int j = 0; j < colcount; j++) {                     if (j != 7) {                         if (j != colcount - 1)                             bw.write(c.getstring(j) + ",");                         else                             bw.write(c.getstring(j));                     } else                         bw.write((c.getblob(7)) + ",");                 }                 bw.newline();             }             bw.flush();             log.e("tag", "exported successfully.");             log.e("tag", "exported to" + sdcarddir);         }         c.close();       } catch (exception ex) {         log.e("catch", ex.getmessage().tostring());     }


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