Question

I’m using SQL Server 2005 express
I have a datetime field in a table witch contains date and time.

I want to select distinct the dates from the table ignoring the time part.

I used this code but the order by is ignored ! (the generated sql doesn’t contain order by) :

        var dates = (from c in db.Comments
                     orderby c.Time descending
                     select c.Time.Day + "/" + c.Time.Month + "/" + c.Time.Year).Distinct();

Any ideas on how to do this are welcome.

Thanks

Answer 1

Use the Date property of the DateTime type.

var dates = from c in db.Comments
             group c by c.Time.Date into g
             orderby g.Key
             select g.Key;

or

var dates = (from c in db.Comments
            select c.Time.Date).Distinct().OrderBy(d => d);

An SQL expert can tell you which of these is better.