Data Recovery Forums - Help & Discussions

Xprt · Guest

In ADO 2.x we used one common set of classes to perform database connections, retrieve records, update data, execute stored procedures, etc. They were the ADO command, connection, error, field, parameter, property, record, recordset and stream classes.

In ADO.NET we have two sets of classes that we can use to access our data, depending on how that data is stored. Each of these classes is stored in a separate namespaces that clearly identifies them. To access data stored in an SQL Server database, we would use the classes that exist in the System.Data.SqlClient namespace. To access data stored in any other OLEDB accessible repository (such as Excel, MySQL, Access, and even SQL Server) we use the classes available under the System.Data.OleDb namespace.

In ADO 2.x we used the recordset, command and stream classes to access data, but with ADO.NET we now have access to several new data access classes. These classes can be used to store, access, manipulate and relate data from one source to another.