execute multiple SELECT statements(select) using a SqlCommand object and read the results using a SqlDataReader object

 

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

class ExecuteSelect {
    public static void Main() {
        SqlConnection mySqlConnection = new SqlConnection("server=localhost;database=Northwind;uid=sa;pwd=sa");
        SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
        mySqlCommand.CommandText =
          "SELECT TOP 5 ProductID, ProductName " +
          "FROM Products " +
          "ORDER BY ProductID;" +
          "SELECT TOP 3 CustomerID, CompanyName " +
          "FROM Customers " +
          "ORDER BY CustomerID;" +
          "SELECT TOP 6 OrderID, CustomerID " +
          "FROM Orders " +
          "ORDER BY OrderID;";

        mySqlConnection.Open();

        SqlDataReader mySqlDataReader = mySqlCommand.ExecuteReader();
        do {
            while (mySqlDataReader.Read()) {
                Console.WriteLine("mySqlDataReader[0] = " + mySqlDataReader[0]);
                Console.WriteLine("mySqlDataReader[1] = " + mySqlDataReader[1]);
            }
        } while (mySqlDataReader.NextResult());

        mySqlDataReader.Close();
        mySqlConnection.Close();
    }
}

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8.	Get row count by 'ExecuteScalar'
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10.	Async Command Object
11.	Populate a DataSet object using a SELECT statement
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13.	control SqlCommand to return a single row

execute multiple SELECT statements(select) using a SqlCommand object and read the results using a SqlDataReader object : SqlCommand « Database ADO.net « C# / C Sharp

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