public ArrayList<Object[]> getPesonnelData(String client) throws Exception{
		ArrayList<String> columnName = getTableColumn("personnel");
		ArrayList<Object[]> rowData = new ArrayList<>();
		int num = 1;
		
		try{
			String sql = "Select * FROM `personnel` where assignment = '" + client + 
					"' order by name";
			Statement st = con.createStatement();
			ResultSet rs = st.executeQuery(sql);
			
			while(rs.next()){
				ArrayList<String> data = new ArrayList<String>();
				data.add(Integer.toString(num));
				num++;
				for(String name:columnName){
					data.add(rs.getString(name));
				}
				rowData.add(data.toArray());
			}
        }catch (Exception ex){
			System.out.println(ex);
        }
		if(rowData.size() == 0){
			throw new Exception("No Data Found!");
		}
		return rowData;
	}