Google
http://www.connectionstrings.com/ [ ^ ]

Google before you post

http://www.connectionstrings.com/[^]

您的问题不清楚.是否要获取sql数据库的连接字符串?数据库，您将在服务器资源管理器中看到该数据库.然后右键单击该数据库，然后选择属性.在属性窗口中，您将看到连接字符串(当然，如果您使用的是Visual Studio).

Your question is not clear.Are you want to know to get connection string of a sql database?After adding a database you will see that in server explorer.Then right click on that database and select properties.In property window you will see connection string(Of course if you use Visual Studio)..

please Check Below Link for your question it will be help full for you:

http://www.c-sharpcorner.com/uploadfile/nipuntomar /connection-strings-for-sql-server-2005/ [ http://www.connectionstrings.com/sql-server-2005

http://www.c-sharpcorner.com/uploadfile/nipuntomar/connection-strings-for-sql-server-2005/[^]
http://www.connectionstrings.com/sql-server-2005