EXEC %%DatabaseEx(Name = @dbname).SetCompatibility(Level = @input_cmptlevel)

-- does not return any result
select	*
from	sys.procedures
where	[name] like '%DatabaseEx%'

-- Note: database @dbname may not exist anymore
-- Change compatibility level
-- If invoke gets error, exception will abort this proc.
EXEC %%DatabaseEx(Name = @dbname).SetCompatibility(Level = @input_cmptlevel)