Question

I have two tables:

create table dbo.Dates (
  Id int not null
    constraint Dates_Id_PK primary key clustered (Id),
  [DateValue] date not null
}

create table dbo.Posts (
  Id int identity not null 
    constraint Posts_Id_PK primary key clustered (Id),
  Created datetime not null,
  Title nvarchar (200) not null
)

For these tables I have Date and Post entities.

How can I get a table that has the column DateValue from Dates and the number of Posts with that date.

I need to match the datetime Created value to the date DateValue.

Thank you,

Miguel

Answer 1

I assume your Posts have dates with times, so you’ll have to truncate them to the date part (as in the Date property of a DateTime):

from d in context.Dates
select new { 
             Date = d.DateValue,
             NrOfPosts = (from p in context.Posts
                 where EntityFunctions.TruncateTime(t.Created) == d.DateValue
                 select p).Count()
           }