使用SqlDependency時要開啟Service Broker ,那麽SqlDependency是什麽 https://www.cnblogs.com/zhaoyihao/p/5663258.html

如何啟用 Service Broker:

--is_broker_enabled為0未啟用，為1啟用
SELECT name,is_broker_enabled FROM sys.databases WHERE name = ‘DBNAME‘

ALTER DATABASE DbName SET NEW_BROKER WITH ROLLBACK IMMEDIATE;
ALTER DATABASE
 
 DbName SET ENABLE_BROKER;

1.先查看是否開啟

2.執行

3.再次查看

sql server 啟用數據庫的 Service Broker