android - Database Query only returns column name -


hello , help! database has 4 columns , need way return newest item added last column each time. column name spininterval , value int.

database http://www.bthindiet.com/datatable.jpg

in dbadapter class have set method retrieving data 

 public cursor fetchreminder(long rowid) throws sqlexception {      cursor mcursor =              mdb.query(true, database_table, new string[] {key_rowid,                     key_title, key_body, key_date_time, key_spinner}, key_rowid + "=" + rowid, null,                     null, null, null, null);     if (mcursor != null) {         mcursor.movetofirst();     }     return mcursor;  }

the code tried
string repeat = remindersdbadapter.key_spinner.tostring();
returned name of column spininterval. correct way query info (60 * 60 * 1000 * 8) , work each time new item added db? going add info alarmmanager setrepeating call. 

public class remindermanager {  private context mcontext;  private alarmmanager malarmmanager;    string repeat = remindersdbadapter.key_spinner.tostring();  private static final string tag = "myactivity";    public remindermanager(context context) {     mcontext = context;      malarmmanager = (alarmmanager)context.getsystemservice(context.alarm_service); }  public void setreminder(long taskid, calendar when) {     log.e(tag, repeat);     intent = new intent(mcontext, onalarmreceiver.class);     i.putextra(remindersdbadapter.key_rowid, (long)taskid);       pendingintent pi = pendingintent.getbroadcast(mcontext, 0, i, pendingintent.flag_one_shot);       malarmmanager.setrepeating(alarmmanager.rtc_wakeup, when.gettimeinmillis(), repeat, pi); }

}

can me correct code this? stuck on it.

string selectquery = "select * from" + database_table  +"order key_rowid desc limit 1"; sqlitedatabase db = this.getwritabledatabase(); cursor cursor = db.rawquery(selectquery, null);

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