How to get min ID value and max ID value in MySQL table
问题 This is work_details table . Now I want to retrieve the timeIn and timeOut data from MySQL to android. public void RetrieveTotalHours( final String ID) { class GetHours extends AsyncTask<Void,Void,String> { ProgressDialog loading; @Override protected void onPreExecute() { super.onPreExecute(); loading = ProgressDialog.show(getActivity(),"Fetching...","Wait...",false,false); } @Override protected void onPostExecute(String s) { super.onPostExecute(s); loading.dismiss(); showHours(s); }