Question

SELECT Id,Date,Name 
FROM people 
WHERE DATEPART(hh,Date) >= 7 
AND DATEPART(hh,Date) <= 8 
Order by DATEPART(ww,Date);

My database is SQL Server, and the thing is that “Date” are stored as a string type. If I execute that query it does not order properly.

What I want to do is, get each day’s value for between 7am and 8 am. For example, I want to get 14th of June records for between 7am and 8am, samething for 15th of june and so on….

Answer 1

First that all you (we) should know how it is stored in the DB. To parse the “varchar date” to a datetime.

Let suppose we have the Date varchar storaged like mm/dd/yyyy
so You should use a SELECT convert(datetime, THEDATECOLUMN, 101) -- mm/dd/yyyy

You can take a look to more types of convert varchar to datetime here

Ok, in the understanding that you have to convert first the varchar to date time and in this example using the mm/dd/yyyy we should write the query like this way.

SELECT Id,Date,Name 
FROM people 
WHERE DATEPART(hh,convert(datetime, DATE, 101) ) >= 7 
AND DATEPART(hh,convert(datetime, DATE, 101) )  <= 8 
Order by convert(datetime, DATE, 101);

Depending of how it is storaged, you should change the type of conversion listed in the related link