The connection can be used to send queries and receive the response to those queries from a Microsoft Sql Server database. Net such as a S qlConnection and everything that this requires. Net application involves a TCP connection, a TDS connection over the TCP connection and a set of objects in Sql Server and.
All these factors will lead to internet users experiencing a slower, more variable and less reliable TCP connection than on a LAN.Ī networked connection to Microsoft Sql Server from a. It isn’t just distance but the time of day too: services such as netflix and iplayer use a lot of additional bandwidth at particular times of day. The problem with going across the internet is that unless you are using dedicated lines with a high quality of service, the latency is variable and, the further you go, the more variability you get. The latency further afield over a WAN or the Internet is, slow very slow. if is it noticeable on a LAN, then there is something seriously wrong. Even when you are sending a few packets backwards and forwards, the cost of the network transport is generally hidden. The latency on a LAN is small so small, in fact, that ping on Windows does not even bother telling you how much time it took to send a packet and get a response back, because it is typically less than a millisecond. To explain more about these problems, and how to avoid them with connection pooling, it is important to understand what is involved in using TDS over the internet. Connections can be slow to create, they can be insecure, and they can break. Good old TDS is still used to connect to Sql Azure over the internet, but TDS is now in a very different world to the one it was designed for. For example, they can now get databases up and running in Azure and have requests either coming from inside Azure, another cloud provider or on the customer’s site. The Cloud, and Azure in particular, has opened up a wide range of possibilities for application developers because it is now so easy to have SQL Server on the internet. Improving the Quality of SQL Server Database Connections in the Cloud - Simple Talk
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