ClientServerAPP
Клиент-серверное приложение Работа с базой данных Запросы:
SELECT ( [service, period], [period,service], [service], [period], [phone, period], [phone], [ALL], )
INSERT ( [phone, service, date, sum], [phone,service,sum](тут автоматически текущая дата) )
DELETE ( [phone, service, period], [phone, period], [phone], [service, period], [service], [period], [ALL] )
UPDATE ( [service WHERE service], [service WHERE phone, service], [service WHERE phone], [phone WHERE service], [phone WHERE phone], [phone], [service] )