批量更新Entity frame work 和时间相关

https://stackoverflow.com/questions/38475290/linq-to-entities-datetime-compare/38475344

return context.Events
    .Any(x => x.UserId == id && x.Date > date 
        && System.Data.Entity.DbFunctions.DiffDays(x.Date, date) < 1
        && x.Type == EventType.StartWork);

https://stackoverflow.com/questions/44194877/how-to-bulk-update-records-in-entity-framework

Improve Performance Tests
https://stackoverflow.com/questions/5940225/fastest-way-of-inserting-in-entity-framework

   Entity Framework .AsNoTracking() – why & how (EF and EF Core)

https://agirlamonggeeks.com/2019/05/06/entity-framework-asnotracking-why-how-ef-and-ef-core/