我在客户机对服务器的SQL Server数据库进行备份，代码如下：
Set conn = New ADODB.Connection
If Trim(PWD) = "" Then
strConn = "Provider=SQLOLEDB.1;User ID=sa;pwd=;Data Source='" & Server_Name & "'"
Else
strConn = "Provider=SQLOLEDB.1;User ID=sa;pwd=" & PWD & ";Data Source='" & Server_Name & "'"
End If
conn.Open strConn
'保存备份
'注意，如果目标文件夹不存在，则无法备份
conn.Execute "backup database 库名 to disk='" & Trim(txtFolder) & "'"备份后的备份文件放到了本机上。能否把备份文件直接放在服务器上？如果服务器有密码或防火墙怎么办？
Set conn = New ADODB.Connection
If Trim(PWD) = "" Then
strConn = "Provider=SQLOLEDB.1;User ID=sa;pwd=;Data Source='" & Server_Name & "'"
Else
strConn = "Provider=SQLOLEDB.1;User ID=sa;pwd=" & PWD & ";Data Source='" & Server_Name & "'"
End If
conn.Open strConn
'保存备份
'注意，如果目标文件夹不存在，则无法备份
conn.Execute "backup database 库名 to disk='" & Trim(txtFolder) & "'"备份后的备份文件放到了本机上。能否把备份文件直接放在服务器上？如果服务器有密码或防火墙怎么办？
Private Sub meudatabackup_Click()
On Error GoTo ErrHandler Dim i As String
Dim SQLname As String
Dim iReturn As String
SQLname = Year(Now) & "年" & Month(Now) & "月" & "(RH).bak"
With CommonDialog1
.DialogTitle = "数据备份"
.FileName = SQLname
.Filter = "(数据库)*.bak|*.bak"
.CancelError = True
.ShowOpen
.InitDir = App.Path & "\Databackup"
End With
iReturn = fBackupDatabase_a(CommonDialog1.FileName, "cpy")
MsgBox iReturn
Exit Sub
ErrHandler:
' 用户按了“取消”按钮
MsgBox "用户取消备份操作或备份过程中出现错误，备份失败！", 48, "提示"
Exit Sub
End Sub
还原sql数据库
Private Sub meudatarevert_Click()
On Error GoTo ErrHandler
Dim i As String
Dim iReturn As String
With CommonDialog1
.DialogTitle = "数据还原"
.FileName = ""
.Filter = "(数据库)*.bak|*.bak"
.CancelError = True
.ShowOpen
.InitDir = App.Path & "\Databackup"
End With
iReturn = fRestoreDatabase_a(CommonDialog1.FileName, "cpy")
MsgBox iReturn
Exit Sub
ErrHandler:
' 用户按了“取消”按钮
MsgBox "用户取消还原操作或还原过程中出现错误，还原失败！", 48, "提示"
Exit SubEnd Sub
备份函数
'*************************************************************************
'**模 块 名：fBackupDatabase_a
'**描 述：备份数据库,返回出错信息,正常恢复,返回""
'**调 用：fBackupDatabase_a "备份文件名","数据库名"
'**参数说明：
'** sBackUpfileName 恢复后的数据库存放目录
'** sDataBaseName 备份的数据名
'** sIsAddBackup 是否追加到备份文件中
'**说 明：引用Microsoft ActiveX Data Objects 2.x Library
'*************************************************************************
Public Function fBackupDatabase_a(ByVal sBackUpfileName$ _
, ByVal sDataBaseName$ _
, Optional ByVal sIsAddBackup As Boolean = False _
) As String
Dim iDb As ADODB.Connection
Dim iConcStr$, iSql$, iReturn$
Dim uid, pwd, addr As String
On Error GoTo lbErr
'读取数据库相关信息
uid = ReadIniFile(getiniPath("cpy.ini"), "Admin", "uid")
pwd = ReadIniFile(getiniPath("cpy.ini"), "Admin", "pwd")
addr = ReadIniFile(getiniPath("cpy.ini"), "Admin", "address")
'创建对象
Set iDb = New ADODB.Connection
'连接数据库服务器,根据你的情况修改连接字符串
iConcStr = "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=" & uid & ";password=" & pwd & ";Initial Catalog=cpy;Data Source=" & addr
iDb.Open iConcStr
'生成数据库备份语句
iSql = "backup database [" & sDataBaseName & "]" & vbCrLf & _
"to disk='" & sBackUpfileName & "'" & vbCrLf & _
"with description='" & "zj-backup at:" & Date & "(" & Time & ")'" & vbCrLf & _
IIf(sIsAddBackup, "", ",init")
iDb.Execute iSql
iReturn = "数据库备份成功！"
GoTo lbExit
lbErr:
iReturn = Error
lbExit:
fBackupDatabase_a = iReturn
End Function
'*************************************************************************
'**模 块 名：frestoredatabase_a
'**描 述：恢复数据库,返回出错信息,正常恢复,返回""
'**调 用：frestoredatabase_a "备份文件名","数据库名"
'**参数说明：
'** sDataBasePath 恢复后的数据库存放目录
'** sBackupNumber 是从那个备份号恢复
'** sReplaceExist 指定是否覆盖已经存在的数据
'**说 明：引用Microsoft ActiveX Data Objects 2.x Library
'*************************************************************************
Public Function fRestoreDatabase_a(ByVal sBackUpfileName$ _
, ByVal sDataBaseName$ _
, Optional ByVal sDataBasePath$ = "" _
, Optional ByVal sBackupNumber& = 1 _
, Optional ByVal sReplaceExist As Boolean = True _
) As String
Dim iDb As ADODB.Connection, iRe As ADODB.Recordset
Dim iConcStr$, iSql$, iReturn$, iI&
Dim uid, pwd, addr As String
On Error GoTo lbErr
'读取数据库相关信息
uid = ReadIniFile(getiniPath("cpy.ini"), "Admin", "uid")
pwd = ReadIniFile(getiniPath("cpy.ini"), "Admin", "pwd")
addr = ReadIniFile(getiniPath("cpy.ini"), "Admin", "address")
'创建对象
Set iDb = New ADODB.Connection
Set iRe = New ADODB.Recordset
'连接数据库服务器,根据你的情况修改连接字符串
iConcStr = "Provider=SQLOLEDB.1;Persist Security Info=False;Data Source=" & addr & ";User ID=" & uid & ";password=" & pwd
iDb.Open iConcStr
'得到还原后的数据库存放目录,如果没有指定,存放到SQL SERVER的DATA目录
If sDataBasePath = "" Then
iSql = "select filename from master..sysfiles"
iRe.Open iSql, iDb, adOpenKeyset, adLockReadOnly
iSql = iRe(0)
iRe.Close
sDataBasePath = Left(iSql, InStrRev(iSql, "\"))
End If
'检查数据库是否存在
If sReplaceExist = False Then
iSql = "select 1 from master..sysdatabases where name='" & sDataBaseName & "'"
iRe.Open iSql, iDb, adOpenKeyset, adLockReadOnly
If iRe.EOF = False Then
iReturn = "数据库已经存在!"
iRe.Close
GoTo lbExit
End If
iRe.Close
End If
'关闭用户进程,防止其它用户正在使用数据库,导致数据恢复失败
iSql = "select spid from master..sysprocesses where dbid=db_id('" & sDataBaseName & "')"
iRe.Open iSql, iDb, adOpenKeyset, adLockReadOnly
While iRe.EOF = False
iSql = "kill " & iRe(0)
iDb.Execute iSql
iRe.MoveNext
Wend
iRe.Close
'获取数据库恢复信息
iSql = "restore filelistonly from disk='" & sBackUpfileName & "'" & vbCrLf & _
"with file=" & sBackupNumber
iRe.Open iSql, iDb, adOpenKeyset, adLockReadOnly
'生成数据库恢复语句
iSql = "restore database [" & sDataBaseName & "]" & vbCrLf & _
"from disk='" & sBackUpfileName & "'" & vbCrLf & _
"with file=" & sBackupNumber & vbCrLf
With iRe
While Not .EOF
iReturn = iRe("PhysicalName")
iI = InStrRev(iReturn, ".")
iReturn = IIf(iI = 0, "", Mid(iReturn, iI)) & "'"
iSql = iSql & ",move '" & iRe("LogicalName") & _
"' to '" & sDataBasePath & sDataBaseName & iReturn & vbCrLf
.MoveNext
Wend
.Close
End With
iSql = iSql & IIf(sReplaceExist, ",replace", "")
iDb.Execute iSql
iReturn = "数据库恢复成功！"
GoTo lbExit
lbErr:
iReturn = Error
lbExit:
fRestoreDatabase_a = iReturn
End Function