Sql server knows many data types.it's worth our
while to know most common types -

code behind file codes -

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

It's a very common requirement to create different types of button and
it's click event handler dynamically in asp.net application.

you may read many article in web about how to make a page
not to be cached using meta tags like that in the head
section -

using SMO classes one can backup a sql server database
in .bak extension.It's a programming approach to backup
database.there are other ways but using SMO classes it
is efficient and error free.

stored procedures allow flexibility by offering capabilities like
conditional logic.a single procedure may execute a set of SQL
statements which are really complex.