如何将visual basic 2008连接到sql server 2008？

Question

任何人都可以请指导我如何将Visual Basic 2008连接到SQL Server 2008数据库？我很困惑什么是最好的做法，当涉及到这一点。

Answer 1

有很多种方法。然而，这是使用.net库最简单的一种。

1. 您连接到数据库使用的服务器，数据库和用户名和密码，
2. 你发出一个SQL命令
3. 你收集的结果在一个SqlDataReader
4. 你迭代在读者的结果
5. 你清理这些资源。

来源：How to ADO.NET SqlDataReader

Imports System.Data.SqlClient 
    Public Class Form1 
     Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click 
      Dim connectionString As String 
      Dim sqlCnn As SqlConnection 
      Dim sqlCmd As SqlCommand 
      Dim sql As String 
      ' Use this first connection string if using windows auth 
      ' connectionString = "Data Source=ServerName;Initial Catalog=DatabaseName;Integrated Security=True" 
      connectionString = "Data Source=ServerName;Initial Catalog=DatabaseName;User ID=UserName;Password=Password" 
      sql = "Your SQL Statement Here , like Select * from product" 

      sqlCnn = New SqlConnection(connectionString) 
      Try 
       sqlCnn.Open() 
       sqlCmd = New SqlCommand(sql, sqlCnn) 
       Dim sqlReader As SqlDataReader = sqlCmd.ExecuteReader() 
       While sqlReader.Read() 
        MsgBox(sqlReader.Item(0) & " - " & sqlReader.Item(1) & " - " & sqlReader.Item(2)) 
       End While 
       sqlReader.Close() 
       sqlCmd.Dispose() 
       sqlCnn.Close() 
      Catch ex As Exception 
       MsgBox("Can not open connection ! ") 
      End Try 
     End Sub 
    End Class 

Answer 2

从MSDN : Connecting to Microsoft SQL Server 2008 from Microsoft Visual Studio 2005 and 2008