ReaderTest.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;


namespace DatabaseProject
{
  public class ReaderTest
  {
    public void TestUnconditional() {
      string connectionString = "server=localhost;DataBase=CourseDatabase;uid=sa;pwd=godoro";
      SqlConnection connection = new SqlConnection(connectionString);
      connection.Open();

      String sql = "select * from Student";
      SqlCommand command = new SqlCommand(sql, connection);
      SqlDataReader reader = command.ExecuteReader();
      while (reader.Read()) {
        int studentId = (int)reader["StudentId"];
        string firstName = (string)reader["FirstName"];
        string lastName = (string)reader["LastName"];
        DateTime birthDate = (DateTime)reader["BirthDate"];
        bool isGraduated = (bool)reader["IsGraduated"];
        double bodyWeight = (double)reader["BodyWeight"];
        int gradeNumber = (int)reader["GradeNumber"];
        Console.WriteLine(studentId + " , " + firstName + "," + lastName + " ,"
          +birthDate + " , " + isGraduated + "," + bodyWeight, gradeNumber);
      }
      reader.Close();

      connection.Close();

    }
    public void TestConditional()
    {
      string connectionString = "server=localhost;DataBase=CourseDatabase;uid=sa;pwd=godoro";
      SqlConnection connection = new SqlConnection(connectionString);
      connection.Open();

      String sql = "select * from Student where IsGraduated=1";
      SqlCommand command = new SqlCommand(sql, connection);
      SqlDataReader reader = command.ExecuteReader();
      while (reader.Read()) {
        int studentId = (int)reader["StudentId"];
        string firstName = (string)reader["FirstName"];
        string lastName = (string)reader["LastName"];
        DateTime birthDate = (DateTime)reader["BirthDate"];
        bool isGraduated = (bool)reader["IsGraduated"];
        double bodyWeight = (double)reader["BodyWeight"];
        int gradeNumber = (int)reader["GradeNumber"];
        Console.WriteLine(studentId + " , " + firstName + "," + lastName + " ,"
          + birthDate + " , " + isGraduated + "," + bodyWeight, gradeNumber);
      }
      reader.Close();

      connection.Close();

    }


  }
}