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By centralizing your connection strings you make it much easier to modify them when your database changes (for example, when you switch from a development environment to a production server).
Obviously, these code-free pages have limitations that make them less useful in more advanced scenarios.The value of the first part contains the data source to identify the SQL Server that is targeted, which in this case is a Local DB instance of SQL Server 2012.Other valid data sources you may come across include points to a database available on the SQL Server you are using. The last part of the connection string has to do with security.You request the page in your browser and the page begins its page life cycle. The folder to reset the theme that is applied to all pages in the Management section.With the theme removed, it’s easier to focus on the functionality of the Management section, rather than be distracted by layout issues.
The You didn’t manually write any code to interact with the database in this exercise, but you got a lot of functionality simply by dragging and dropping a database table.