第二课 SqlConnection对象(翻译)

5．            关闭连接

We''''ve already seen how to instantiate a SqlConnection.  The rest of the steps, opening, passing, using, and closing are shown in Listing 1.

我们已经看到如何实例化SqlConnetion。其它的步骤：打开、传递、使用和关闭参见Listing1：

Listing 1.  Using a SqlConnection

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

/// <summary>
/// Demonstrates how to work with SqlConnection objects
/// </summary>
class SqlConnectionDemo
{
    static void Main()
    {
        // 1. Instantiate the connection实例化连接
        SqlConnection conn = new SqlConnection(
            "Data Source=(local);Initial Catalog=Northwind;Integrated Security=SSPI");

        SqlDataReader rdr = null;

        try
        {
            // 2. Open the connection打开连接
            conn.Open();

            // 3. Pass the connection to a command object

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