我有一个进行约会的类,进行约会的人只插入开始日期和时间,但结束日期必须等于下一个约会的开始日期。我的困难在于确保以前的约会总是接收作为当前约会的StartDate的EndDate public class InfoAppointments : Entity publicpublic string Status { get; set; }
public string Observation{ ge
SELECT Person.Id, Inquiry.Id, Inquiry.StartDate, Inquiry.EndDate, DATEDIFF(DAY, Inquiry.StartDate, Inquiry.EndDate, DATEDIFF(DAY, LAG(Inquiry.EndDate) OVER (PARTITION BY Person.Id ORDER BY Inquiry.StartDate), Inquiry.StartDate结果:正如