VB.NET 代码 备份ACCESS
时间: 2024-04-14 18:09:43 浏览: 116
以下是 VB.NET 代码备份 ACCESS 数据库的示例:
```vb
Imports System.Data.OleDb
Public Class Form1
Private Sub btnBackup_Click(sender As Object, e As EventArgs) Handles btnBackup.Click
Dim filename As String = "C:\backup\backup_" & DateTime.Now.ToString("yyyyMMddHHmmss") & ".accdb" '备份文件名
Dim conString As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\database\mydb.accdb" '原始数据库连接字符串
Dim backupString As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & filename '备份数据库连接字符串
Using connection As New OleDbConnection(conString)
connection.Open()
'创建备份SQL命令
Dim backupCommand As New OleDbCommand("SELECT * INTO [;DATABASE=" & filename & "].[" & DateTime.Now.ToString("yyyyMMddHHmmss") & "_backup] FROM mytable", connection)
'执行备份命令
backupCommand.ExecuteNonQuery()
connection.Close()
End Using
MessageBox.Show("备份完成!备份文件路径:" & filename)
End Sub
End Class
```
这段代码使用了 OleDb 连接对象和 SQL 命令来备份 ACCESS 数据库。首先,我们定义了原始数据库的连接字符串和备份数据库的连接字符串。然后,我们使用 OleDb 连接对象打开原始数据库连接,并创建一个备份 SQL 命令。最后,我们执行备份命令并关闭连接。备份完成后,我们在消息框中显示备份文件的路径。
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