Truncating Tables Without Elevated Rights

A common request from users is to receive “Truncate Table Rights” within a database.  Because a truncate statement is a DDL command, this isn’t nearly as easy to fulfill as most people would expect.  Faced with this challenge, a DBA might even find themselves choosing between elevating the user’s rights (e.g. including them into the db_ddladmin or db_owner role) or being a bad guy and flat-out denying the request.  Neither option is a win for both parties, so thankfully (in SQL 2005 and later) there is another solution.