InputStream is = context.getResources().openRawResource(availibilityJson);
        BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
        StringBuilder alles = new StringBuilder();
        String line;
        while ((line = br.readLine()) != null)
        {
            alles.append(line);
        }
        is.close();
        jsonArray = new JSONArray(alles.toString());
        for (int i = 0; i < jsonArray.length(); i++)
        {
            JSONObject obj = jsonArray.getJSONObject(i);
            String ean = obj.getString("EAN").trim();
            String vk6 = obj.getString("vk6").trim();
            Availability availability = new Availability(ean, vk6);
            Datenbank.availibilityEintragen(availability);
        }

public static boolean availabilityEintragen(String ean, String vk6, int i, boolean letzter)
    {
        if ((i % 1000) == 0)
        {
            db.beginTransaction();
        }
        try
        {
            String sql = "INSERT INTO availability (EAN, vk6) VALUES (?, ?)"; 
            SQLiteStatement stmt = db.compileStatement(sql);
            stmt.bindString(1, ean);
            stmt.bindString(2, vk6);
            stmt.execute();
            if ((i % 1000) == 999 || letzter)
            {
                db.setTransactionSuccessful();
            }
            return true;
        }
        catch (Exception exc)
        {
            Log.v("Exception", exc.getMessage());
            return false;
        }
        finally
        {
            if ((i % 1000) == 999 || letzter)
            {
                db.endTransaction();
            }
        }
    }

            String sql = "INSERT INTO availability (EAN, vk6) VALUES (?, ?)"; 
            SQLiteStatement stmt = db.compileStatement(sql);