启用Ad Hoc Distributed Queries：
exec sp_configure 'show advanced
options',1
reconfigure
exec sp_configure 'Ad Hoc Distributed
Queries',1
reconfigure
使用完成后，关闭Ad Hoc Distributed Queries：
exec
sp_configure 'Ad Hoc Distributed Queries',0
reconfigure
exec sp_configure
'show advanced options',0
reconfigure
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