VB备份与还原SQL数据库代码

Private Sub mnuDBBackUp_Click() '------------------备份数据库Dim cnbak As New ADODB.ConnectionIf cnbak.State <> 0 Then cnbak.Closecnbak.Open "provider=sqloledb;server=" & strSQLServer & ";user id=" & strSQLUser & ";password=" & strSQLPWDim backupSQL As StringbackupSQL = "USE master " + Chr(10) + Chr(13)backupSQL = backupSQL & "exec sp_addumpdevice 'disk','bak1'," & "'" & App.Path & "/bak1.bak" & "'"'bak1为备份设备backupSQL = backupSQL + Chr(10) + Chr(13) + "BACKUP DATABASE SuperMarketdb TO bak1 WITH INIT"cnbak.Execute backupSQLMsgBox "数据库备份成功!", vbInformationcnbak.CloseSet cnbak = NothingEnd SubPrivate Sub mnuDBResume_Click() '-------------------还原数据库Dim cn As New ADODB.Connection, rs As New ADODB.RecordsetIf Dir(App.Path & "/bak1.bak") <> vbNullString ThenIf cnMain.State <> 0 Then cnMain.Close cn.ConnectionString = "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=" & strSQLUser & ";Password=" & strSQLPW & ";Initial Catalog=master;Data Source=" & strSQLServer '借助master数据库来恢复strSQLUser是SQL登录名，Password是密码，strSQLServer是服务器名 cn.CursorLocation = adUseClient cn.Open rs.Open "select spid from sysprocesses where dbid=db_id('SuperMarketdb')", cn Do While Not rs.EOF cn.Execute "kill " & rs("spid") '杀掉sql服务器的所有连接，否则会出现：数据库正在使用，无法完成排它操作等等，很重要 rs.MoveNext Loop cn.Execute ("restore database SuperMarketdb from disk='" & App.Path & "/bak1.bak" & "' with replace") cn.Close cnMain.Open "Provider=SQLOLEDB.1;User ID=" & strSQLUser & ";Password=" & strSQLPW & ";Initial Catalog=master;Data Source=" & strSQLServer MsgBox "数据库恢复成功!", vbInformationElseMsgBox "请先备份数据库！", vbInformation, "提示:"End IfSet cn = NothingEnd Sub