using System;
using System.Data;
using System.Data.OleDb;
public class ExtractInfo {
public static void Main () {
String connect = "Provider=Microsoft.JET.OLEDB.4.0;data source=.\\Employee.mdb";
OleDbConnection con = new OleDbConnection(connect);
con.Open();
Console.WriteLine("Made the connection to the Sales database");
OleDbCommand cmd = con.CreateCommand();
cmd.CommandText = "SELECT DISTINCT CustomerName "
+ "FROM Customer, Item, Orders, OrderItem "
+ "WHERE Customer.CustomerID = Orders.CustomerID "
+ "AND Orders.OrderNumber = OrderItem.OrderNumber "
+ "AND OrderItem.ItemNumber = Item.ItemNumber "
+ "AND Description = 'computer'";
OleDbDataReader reader = cmd.ExecuteReader();
while(reader.Read())
Console.WriteLine(reader.GetString(0));
reader.Close();
con.Close();
}
}
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