title: User-Defined Table Types Documentation in SQL Server 2012
body: <p>I tried to find the documentation for user-defined table types in SQL Server 2012 but could only find the 2008 R2 documentation <a href="https://technet.microsoft.com/en-us/library/bb522526(v=sql.105).aspx" rel="nofollow">here</a>.   </p>
  
  <p>I know they can be used in SQL Server 2012 but should I considered them as bad practise or obsolete if there is no documentation for SQL Server 2012?</p>