public ArrayList<HashMap<String, String>> getOximataStatistika(){
		/*
		 * epistrefei ta statistika gia ton diaxiristi 
		 */
		 
		ArrayList<HashMap<String, String>> anafores=new ArrayList<HashMap<String, String>>();
		PreparedStatement newPs;
		ResultSet newRs;
		try {
			pS = conn.prepareStatement("SELECT * FROM oximata INNER JOIN odigoi ON oximata.id=oxima");
			rs=pS.executeQuery();
			while(rs.next()){
				HashMap<String, String> map = new HashMap<String, String>();
				map.put("id", rs.getString("oximata.id"));
				map.put("odigosId", rs.getString("odigoi.id"));
				map.put("odigosOnoma", rs.getString("onoma"));
				
				newPs= conn.prepareStatement("SELECT COUNT(*) AS num FROM anafores INNER JOIN odigoi ON odigos_id=odigoi.id WHERE" +
						" odigoi.id =?");
				newPs.setString(1, rs.getString("odigoi.id"));
				newRs=newPs.executeQuery();
				if(newRs.next())
					map.put("anaforesNum", newRs.getString("num"));
				
				newPs= conn.prepareStatement("SELECT COUNT(*) AS num FROM anefodiasmoi INNER JOIN oximata ON oxima_id=oximata.id WHERE" +
						" oximata.id =?");
				newPs.setString(1, rs.getString("oximata.id"));
				newRs=newPs.executeQuery();
				if(newRs.next())
					map.put("anefodiasmoiNum", newRs.getString("num"));
				anafores.add(map);
			}
		} catch (SQLException e) {
			e.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		}
		
		return anafores;
	}