这两段sql是否等价?

Question

SELECT Persons.LastName, Persons.FirstName, Orders.OrderNoFROM PersonsINNER JOIN OrdersON Persons.Id_P = Orders.Id_PORDER BY Persons.LastNameSELECT Persons.LastName, Persons.FirstName, Orders.OrderNoFROM Persons,OrdersWHERE  Persons.Id_P = Orders.Id_PORDER BY Persons.LastName

Answer 1

是相同的，是内连接的两种写法而已