如何将visual basic 2008连接到sql server 2008？

Question

有人可以指导我如何将Visual Basic 2008连接到SQL Server 2008数据库吗？我对这方面的最佳做法感到困惑。

Answer 1

有很多方法。然而，这是最简单的使用.net库之一。

1. 使用服务器，数据库和用户名和密码连接到数据库
2. 发出sql命令
3. 您在sqldatareader中收集结果
4. 您在阅读器中迭代结果
5. 你清理资源。

来自：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

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