title: How to expire a particular row in SQL Server once a date is reached?
body: <p>It may be very simple scenario for experienced developers, but as a beginner I have been hanging around this for a long time. I am creating a website in asp.net where  a user can purchase a packages. These packages have some expiry date associated with them (e.g. 2 months after purchase, 6 months, etc.). </p>
  
  <p>The problem is how to expire each package exactly at the same date and time that i have calculated on the basis of purchase date. How to do this thing?</p>
  
  <p>I am using SQL Server express edition 2008 and asp.net 4.0 .</p>