启用Ad Hoc Distributed Queries： 

exec sp_configure 'show advanced options',1 

reconfigure 

exec sp_configure 'Ad Hoc Distributed Queries',1 

reconfigure 

   

关闭Ad Hoc Distributed Queries： 

exec sp_configure 'Ad Hoc Distributed Queries',0 

reconfigure 

exec sp_configure 'show advanced options',0 

reconfigure