ADO.NET is Microsoft’s database-independent, language-neutral data access interface included within the .NET framework. ADO.NET allows .NET languages such as C# and VB.NET to communicate with various data sources, primarily relational databases such as SQL Server, Oracle, and, of course, MySQL. MySQL provides an ADO-compliant driver—Connector/Net—that allows us to work with MySQL databases using the ADO.NET interfaces.
First, we’ll start with a quick review of how we can use ADO.NET to process standard SQL statements against a MySQL database. Next, we’ll examine the ADO.NET syntax for invoking stored programs, including handling input and output parameters and processing multiple result sets. Finally, we’ll show how we can use a MySQL stored procedure as the basis for an ASP.NET web application.