The Microsoft .NET platform is used by many software developers for implementing software solutions and ADO.NET is the data access API that enables database connectivity for.NET applications. ADO.NET currently ships with a couple of .NET data providers allow us to connect to a data source, and to execute SQL commands against it. The .NET data providers that enables users to connect to an EnterpriseDB database via their .NET applications is known as EDB Connector/.NET
ADO.NET enables access to a variety of different data sources, including relational databases such as Microsoft SQL Server, Oracle, and Microsoft Access, as well as other data sources such as Microsoft Excel, Outlook, and text files.
The two Data Providers shipped with the .NET Framework are :
OLEDB
Microsoft SQL Server
Other providers are also available-for example, Oracle has developed its own .NET data provider for Oracle.
Similarly EnterpriseDB has developed its own data provider to access an EnterpriseDB database. The provider named "EDB Connector/.NET" accesses the underlying EDB data store directly and offers the best performance, broadest functionality, and support for EDB-specific features.