Example of rollback transactions in sql

begin transaction
insert into table1 (...,...) values (...,...)
if @@error <> 0
rollback trans
else
insert into table2 (...,...) values (...,...)
if @@error <> 0
rollback trans
else
insert into table3 (...,...) values (...,...)

A-Z Sql Queries

http://www.w3schools.com/html/default.asp

Configure IIS to Host Silverlight Applications

http://geekswithblogs.net/frankw/archive/2008/04/10/configure-iis-to-host-silverlight-applications.aspx