Insert And Query A DateTime Object In SQLite DB From C#?

Consider this snippet of code:

string sDate = string.Format("{0:u}", this.Date);
Conn.Open();
Command.CommandText = "INSERT INTO TRADES VALUES(" + """ + this.Date + """ + "," +this.ATR + "," + """ + this.BIAS + """ + ")";
Command.ExecuteNonQuery();

Note the "this.Date" part of the command. Now Date is an abject of type DateTime of C# environment, the DB doesnt store it(somewhere in SQLite forum, it was written that ADO.NET wrapper automatically converts DateTime type to ISO1806 format)

But instead of this.Date when I use sDate (shown in the first line) then it stores properly.

My probem actually doesnt end here. Even if I use "sDate", I have to retrieve it through a query. And that is creating the problem

Any query of this format

SELECT * FROM <Table_Name> WHERE DATES = "YYYY-MM-DD"

returns nothing, whereas replacing '=' with '>' or '<' returns right results.

So my point is:

How do I query for Date variables from SQLite Database.

And if there is a problem with the way I stored it (i.e non 1806 compliant), then how do I make it compliant