What is ADO.NET? [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be re开发者_StackOverflow社区opened, visit the help center. Closed 10 years ago.

What is ADO.NET and what difference between it and SQL Server?

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ADO.NET is a .NET technology designed to make writing code against the database more easy.

It's not a database (SQL Server is a Database server), it's a tool used to access a database. ADO.NET last incarnation comes with "Entity Framework", an Object Relational Mapper (an other tool designed to make the developper life easier too)

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ADO.net is more like an API included in the .net library , to allow programmers to access relational (or sometimes non relational databases) through code. That is , it frees programmers from the necessity of interacting directly with the database. It is more like a wrapper for all the SQL actions you might do in the SQL server .