DELETE FROM MyOils WHERE (OilName = 'Basil') Данный сценарий выполняет действия:

Правильный ответ:

• # Для отбора избранных столбцов оператор SELECT может иметь вид:
• # Функция DATENAME возвращает:
• # Хранимые процедуры обладают преимуществами:
• # CREATE TRIGGER CustomerDelete ON Customer INSTEAD OF DELETE AS SET NOCOUNT ON IF ( EXISTS ( SELECT * FROM DELETED JOIN Sale ON DELETED.CustId = Sale.CustId WHERE DATEDIFF( DAY, SaleDate, CURRENT_TIMESTAMP ) < 365 ) ) BEGIN RAISERROR( 'One or more customers have recent sales', 16, 1) RETURN END DELETE FROM Sale WHERE CustId IN ( SELECT CustId FROM DELETED ) IF ( @@ERROR > 0 ) BEGIN ROLLBACK RAISERROR( 'Could not delete all old sales', 16, 2 ) RETURN END DELETE FROM Customer WHERE CustId IN ( SELECT CustId FROM DELETED ) IF ( @@ERROR > 0 ) BEGIN ROLLBACK RAISERROR( 'Could not delete all old customers', 16, 3 ) RETURN END RETURN Данный сценарий выполняет действия:
• # [Большая Картинка]Данное окно позволяет: