ADO.NET is a set of computer software components that programmers can use to access data and data services from the database. It is a part of the base class library that is included with the Microsoft .NET Framework. It is commonly used by programmers to access and modify data stored in relational database systems, though it can also access data in non-relational sources. ADO.NET is sometimes considered an evolution of ActiveX Data Objects (ADO) technology, but was changed so extensively that it can be considered an entirely new product.
Ado can be used with any Microsoft language which is working on .net framework. It can be VB or C#. Ado is used when there is database related operations are available. Data operations becomes easy with ADO.net. To learn Ado.net you must have knowledge of Vb.net or Asp.net or Visual Studio, because Ado can be used with one of this technology.
This course covers topics like what is ado, creating database, giving relationship and constraint to table, entering data into table, creating sql connection, inserting data using sql command, updating data, deleting data, data table, adding data column and row, dataset, data adapter, parameter, stored procedure.
So this is essential of Ado.net.