Executing a Query That Returns Multiple Result Sets with SqlDataReader : SqlCommand Select « ADO.Net « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. ADO.Net
3. SqlCommand Select

using System;
using System.Data;
using System.Data.SqlClient;

    class Program
    {
        static void Main(string[] args)
        {
            string sqlConnectString = "Data Source=(local);" +
                "Integrated security=SSPI;Initial Catalog=AdventureWorks;";

            string sqlSelect = "SELECT TOP 3 * FROM Sales.SalesOrderHeader;" +
                "SELECT TOP 3 * FROM Sales.SalesOrderDetail";
            int rsNumber;
            SqlDataAdapter da = new SqlDataAdapter(sqlSelect, sqlConnectString);
            DataSet ds = new DataSet( );
            da.Fill(ds);

            rsNumber = 0;

            using (SqlConnection connection = new SqlConnection(sqlConnectString)){
                SqlCommand command = new SqlCommand(sqlSelect, connection);
                connection.Open( );
                SqlDataReader dr = command.ExecuteReader( );

                rsNumber = 0;
                do{
                    Console.WriteLine("Result set: {0}", ++rsNumber);
                    while (dr.Read( )){
                        Console.WriteLine("{0}, {1}, {2}", dr[0], dr[1], dr[2]);
                    }
                    Console.WriteLine(Environment.NewLine);
                } while (dr.NextResult( ));
            }
        }
    }