Hi, I follow the steps on 2008R2. When I execute

EXECUTE AS LOGIN = 'ApplicationUser'

I got error:

Cannot execute as the server principal because the principal "ApplicationUser" does not exist, this...

Thanks so much, JohnG.

Thanks. Is it any way to workaround?

How to add

with xmlnamespaces( 'http://www.w3.org/TR/html4/' as "h")

to

SELECT getDate() as '@timestamp',

(select name as '@name', xtype as 'data/@xtype'

from sysobjects

for xml path('object'), type

)

FOR XML PATH('root')

so I can get

...