我对一组最少的指令感兴趣,这些指令允许我使用 ado.net 组件将列添加到 Visual Basic 中的现有表中。我的数据库是用 sql server 制作的。我将非常感谢对代码的实用评论,因为这对我最有效
编辑 1
Imports System.Data.Sql
Imports System.Data.SqlClient
Public Class Form1
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Dim connString As String = "Data Source=THE_SHOGUNATE\SQLEXPRESS;Initial Catalog=le_database;Integrated Security=True"
Dim conn As New SqlConnection(connString)
conn.Open()
Dim comm As New SqlCommand("SELECT denumire FROM Reparatii", conn)
Dim reader As SqlDataReader = comm.ExecuteReader
Dim dt As New DataTable
dt.Load(reader)
ListBox1.DataSource = dt
ListBox1.DisplayMember = "denumire"
conn.Close()
conn.Open()
Dim comm As New SqlCommand("ALTER TABLE reparatii ADD durata_executie INT", conn)
conn.Close()
End Sub
End Class
这是一组用于测试目的的说明和一些如意的编码