|
using System;
using System.Data;
using System.Data.SqlClient;
using System.Data.SqlTypes;
class StronglyTypedColumnValuesSql
{
public static void Main()
{
SqlConnection mySqlConnection =new SqlConnection("server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;");
SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.CommandText =
"SELECT TOP 5 ID, Name, UnitPrice, " +
"UnitsInStock, Discontinued " +
"FROM Products " +
"ORDER BY ProductID";
mySqlConnection.Open();
SqlDataReader productsSqlDataReader = mySqlCommand.ExecuteReader();
int productIDColPos = productsSqlDataReader.GetOrdinal("ID");
int productNameColPos = productsSqlDataReader.GetOrdinal("Name");
int unitPriceColPos = productsSqlDataReader.GetOrdinal("UnitPrice");
int unitsInStockColPos = productsSqlDataReader.GetOrdinal("UnitsInStock");
int discontinuedColPos = productsSqlDataReader.GetOrdinal("Discontinued");
while (productsSqlDataReader.Read())
{
SqlInt32 productID = productsSqlDataReader.GetSqlInt32(productIDColPos);
Console.WriteLine("productID = " + productID);
SqlString productName = productsSqlDataReader.GetSqlString(productNameColPos);
Console.WriteLine("productName = " + productName);
SqlMoney unitPrice = productsSqlDataReader.GetSqlMoney(unitPriceColPos);
Console.WriteLine("unitPrice = " + unitPrice);
SqlInt16 unitsInStock = productsSqlDataReader.GetSqlInt16(unitsInStockColPos);
Console.WriteLine("unitsInStock = " + unitsInStock);
SqlBoolean discontinued = productsSqlDataReader.GetSqlBoolean(discontinuedColPos);
Console.WriteLine("discontinued = " + discontinued);
}
productsSqlDataReader.Close();
mySqlConnection.Close();
}
}
|
