Hey Friends, In this Slide We'll discuss what is SignalR And SQL Dependency And how they works in ASP.NET ? SignalR ---------------------------- A real-time application (RTA) is an application program that functions within a time frame that the user senses as immediate or current. The latency must be less than a defined value, usually measured in seconds. In Asp.Net SignalR Technology is used to make Real-Time Application SQL Dependency ----------------------------- As the word describes itself, it is used to notify your application or user when certain criteria or condition is satisfied. In short the SqlDependency provides capabilities to your application to monitor your database for data change without the hassles of continuously querying the database using timers or loops