Conclusion

The need to work with data is fundamental to software. Accordingly, the mechanisms used to do this are an important part of a developer's world, and so ADO.NET is used by a large percentage of .NET Framework applications. It's fair to say that the types comprising ADO.NET are among the most important soldiers in the army of support provided by the .NET Framework class library.

ADO.NET is an important part of the .NET Framework class library