marking scheme
[1 mark] boolean connectDB(String URL, String username, String password)

[1 mark] boolean disconnectDB() 
[3 marks] boolean insertImplment(int flightNo, String date, int pilot, int plane)
[2 marks] if out of order - but data ok - give 1.5 marks, if code ok but result wrong give 1 mark String getLanguageCount()
[2 marks] (same as previous) String getCityCrew (String date, String company, String AirportID)
[3 marks] int changePilot(String company, int flight, int oldPilot, int newPilot)
[2 marks] int deleteFlight(String company, int flight, String date)
[3 marks] int delayFlights( String company, String cityCode, int hours, int mins)
[3 marks] quality of code