有谁知道SQL Server中的备份还原进度条是如何计算的？

45060203 2003-10-28 05:54:10

我想要控制备份还原的进度，请告诉我SQL Server中的备份还原进度条是如何计算的？谢谢啦！

...全文

73 20 打赏收藏转发到动态举报

写回复

用AI写文章

20 条回复

切换为时间正序

请发表友善的回复…

发表回复

leimin 2004-02-18

打赏
举报

backup 有一个STATS参数可以显示备份的进度：
比如：backup database db_name to disk='d:\backdat.dat' with stats

zygtp 2004-02-18

打赏
举报

用我的sql server备份恢复组件
http://zygtp.my20.com

zjcxc 2003-12-19

打赏
举报

程序位置,SQL安装光盘:
x:\DEVTOOLS\SAMPLES\SQLDMO\UNZIP_SQLDMO.EXE
中的:BackRestEvents

zjcxc 2003-12-19

打赏
举报

Private Sub cmdRestore_Click()
On Error GoTo ErrHandler:

Dim oRestore As SQLDMO.Restore

Dim Msg As String
Dim Response As String

' Msg = "You must choose the right database name according to the data file name selected. Do you want to continue?"
' Response = MsgBox(Msg, vbYesNo, gTitle)
' If Response = vbNo Then
' Exit Sub
' End If

gDatabaseName = cmbDatabaseName.Text
Set oRestore = New SQLDMO.Restore
Set oRestoreEvent = oRestore ' enable events

oRestore.Database = gDatabaseName
gBkupRstrFileName = txtDataFileName.Text
oRestore.Files = gBkupRstrFileName

' Change mousepointer while trying to connect.
Screen.MousePointer = vbHourglass

' Restore the database.
oRestore.SQLRestore gSQLServer

' Change mousepointer back to the default after connect.
Screen.MousePointer = vbDefault

Set oRestoreEvent = Nothing ' disable events
Set oRestore = Nothing

Exit Sub

ErrHandler:
MsgBox "Error " & Err.Description
Resume Next
End Sub

Private Sub cmdBrowse_Click()
On Error GoTo ErrHandler:

CommonDialog1.CancelError = True
CommonDialog1.Filter = "All Files (*.*)|*.*|Backup Files (*.bak)|*.bak"
CommonDialog1.FilterIndex = 2
CommonDialog1.InitDir = gBkupRstrFilePath
CommonDialog1.DefaultExt = "bak"
CommonDialog1.DialogTitle = "Data File Name:"
CommonDialog1.Action = 1
txtDataFileName.Text = CommonDialog1.FileName
Exit Sub

ErrHandler:
'User pressed the Cancel button
Exit Sub
End Sub

' VB will create the right prototypes for you, if you select the oBackupEvent in
' the drop down listbox of your editor
Private Sub oBackupEvent_Complete(ByVal Message As String)
PrintStat "oBackupEvent_Complete -- " & Message
End Sub

Private Sub oBackupEvent_NextMedia(ByVal Message As String)
PrintStat "oBackupEvent_NextMedia -- " & Message
End Sub

Private Sub oBackupEvent_PercentComplete(ByVal Message As String, ByVal Percent As Long)
PrintStat "oBackupEvent_PercentComplete -- " & Message & " " & Percent
End Sub

Private Sub oRestoreEvent_Complete(ByVal Message As String)
PrintStat "oRestoreEvent_Complete -- " & Message
End Sub

Private Sub oRestoreEvent_NextMedia(ByVal Message As String)
PrintStat "oRestoreEvent_NextMedia -- " & Message
End Sub

Private Sub oRestoreEvent_PercentComplete(ByVal Message As String, ByVal Percent As Long)
PrintStat "oRestoreEvent_PercentComplete -- " & Message & " " & Percent
End Sub

Private Sub PrintStat(ByRef Message As String)
txtStatus.Text = txtStatus.Text + Message + vbCrLf
End Sub

Private Sub optSSAuth_Click()
If optSSAuth.Value = True Then
SSAuthOptionsOn
End If
End Sub

Private Sub optWinNTAuth_Click()
optWinNTAuth.Value = True
WinNTAuthOptionsOn
txtUserName.Text = ""
txtPassword.Text = ""
End Sub

Private Sub buttonsConnectClosed()
cmdConnect.Default = True

cmdConnect.Enabled = True
cmdBackup.Enabled = False
cmdRestore.Enabled = False
cmdDisconnect.Enabled = False

cmdBrowse.Enabled = False
cmbDatabaseName.Enabled = False
txtDataFileName.Enabled = False

' Enable the Authorization stuff.
optWinNTAuth.Enabled = True
optSSAuth.Enabled = True
txtServerName.Enabled = True
lblServer.Enabled = True
If optWinNTAuth = True Then
WinNTAuthOptionsOn
Else
SSAuthOptionsOn
End If
End Sub

Private Sub buttonsConnectOpen()
cmdConnect.Enabled = False
cmdBackup.Enabled = True
cmdRestore.Enabled = True
cmdDisconnect.Enabled = True

cmdBrowse.Enabled = True
cmbDatabaseName.Enabled = True
txtDataFileName.Enabled = True

' Disable the Authorization stuff.
optWinNTAuth.Enabled = False
optSSAuth.Enabled = False
txtServerName.Enabled = False
lblServer.Enabled = False
lblUserName.Enabled = False
lblPassword.Enabled = False
txtUserName.Enabled = False
txtPassword.Enabled = False
End Sub

Private Sub WinNTAuthOptionsOn()
lblUserName.Enabled = False
lblPassword.Enabled = False
txtUserName.Enabled = False
txtPassword.Enabled = False
End Sub

Private Sub SSAuthOptionsOn()
lblUserName.Enabled = True
lblPassword.Enabled = True
txtUserName.Enabled = True
txtPassword.Enabled = True
End Sub

Private Sub FillDatabaseList()
cmbDatabaseName.Clear

' Enumerate all of the databases and add the names to the list box.
Dim oDB As SQLDMO.Database
For Each oDB In gSQLServer.Databases
If oDB.SystemObject = False Then
cmbDatabaseName.AddItem oDB.Name
End If
Next oDB

' Take care of the assignment of gBkupRstrFilePath.
Dim MyPos As Integer
gBkupRstrFilePath = CurDir
MyPos = InStr(1, CurDir, "DevTools", 1)
If MyPos > 0 Then
gBkupRstrFilePath = Left(gBkupRstrFilePath, MyPos - 1)
If Len(Dir(gBkupRstrFilePath + "backup", vbDirectory)) Then
gBkupRstrFilePath = gBkupRstrFilePath + "backup\"
Else
gBkupRstrFilePath = "c:\"
End If
Else
gBkupRstrFilePath = "c:\"
End If

' Select the first database in the list.
If cmbDatabaseName.ListCount > 0 Then
cmbDatabaseName.ListIndex = 0
' Assign the default backup/restore file name.
If Len(cmbDatabaseName.Text) > 0 Then
txtDataFileName.Text = gBkupRstrFilePath + cmbDatabaseName.Text + ".bak"
End If
End If

End Sub

Private Sub cmbDatabaseName_Click()
' Assign the default backup/restore file name.
If Len(cmbDatabaseName.Text) > 0 Then
txtDataFileName.Text = gBkupRstrFilePath + cmbDatabaseName.Text + ".bak"
End If
End Sub

zjcxc 2003-12-19

打赏
举报

'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
' Backup Restore with Events Sample Application
' Microsoft Copyright 2000
'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
Option Explicit

Dim gSQLServer As SQLDMO.SQLServer
Dim WithEvents oBackupEvent As SQLDMO.Backup
Attribute oBackupEvent.VB_VarHelpID = -1
Dim WithEvents oRestoreEvent As SQLDMO.Restore
Attribute oRestoreEvent.VB_VarHelpID = -1

Dim gbConnected As Boolean
Dim gDatabaseName As String
Dim gBkupRstrFileName As String
Dim gBkupRstrFilePath As String

Const gTitle = "Server Connection"

Private Sub Form_Load()
Set gSQLServer = Nothing
optWinNTAuth.Value = True
gbConnected = False
WinNTAuthOptionsOn
buttonsConnectClosed
End Sub

Private Sub Form_Unload(Cancel As Integer)
If gbConnected = True Then
Call gSQLServer.DisConnect
End If
If Not gSQLServer Is Nothing Then
Set gSQLServer = Nothing
End If
End Sub

Private Sub cmdConnect_Click()
Dim ServerName As String
Dim UserName As String
Dim Password As String

On Error GoTo ErrHandler:

If gSQLServer Is Nothing Then
Set gSQLServer = New SQLDMO.SQLServer
End If

' Put text box values into connection variables.
ServerName = txtServerName.Text
UserName = txtUserName.Text
Password = txtPassword.Text

' Set the login timeout.
gSQLServer.LoginTimeout = 15

' Decision code for login authorization type: WinNT or SQL Server.
If optWinNTAuth.Value = True Then
gSQLServer.LoginSecure = True
End If

' Change mousepointer while trying to connect.
Screen.MousePointer = vbHourglass

gSQLServer.Connect ServerName, UserName, Password
gbConnected = True

' List all of the database names.
FillDatabaseList

' Change mousepointer back to the default after connect.
Screen.MousePointer = vbDefault

' Notify user that connection was successful.
MsgBox "Connection to server successful.", vbOKOnly, gTitle

buttonsConnectOpen

' Clear up the status text in the "result field".
txtStatus.Text = ""

Exit Sub

ErrHandler:
MsgBox "Error " & Err.Description

' Change mousepointer back if it's hourglass.
If Screen.MousePointer = vbHourglass Then
Screen.MousePointer = vbDefault
End If

End Sub

Private Sub cmdDisconnect_Click()
On Error GoTo ErrHandler:

Dim Msg As String
Dim Response As String

' Disconnect from a connected server.
If gbConnected = True Then
Msg = "Disconnect from Server?"
Response = MsgBox(Msg, vbOKCancel, gTitle)
If Response = vbOK Then
Call gSQLServer.DisConnect
Set gSQLServer = Nothing
cmbDatabaseName.Clear
txtDataFileName.Text = ""
txtStatus.Text = ""
gbConnected = False
buttonsConnectClosed
End If
End If

Exit Sub

ErrHandler:
MsgBox "Error " & Err.Description
Resume Next
End Sub

Private Sub cmdBackup_Click()
On Error GoTo ErrHandler:

Dim oBackup As SQLDMO.Backup

gDatabaseName = cmbDatabaseName.Text
Set oBackup = New SQLDMO.Backup
Set oBackupEvent = oBackup ' enable events

oBackup.Database = gDatabaseName
gBkupRstrFileName = txtDataFileName.Text
oBackup.Files = gBkupRstrFileName

' Delete the datafile to allow the application to create a brand new file.
' This will prevent attaching the new backup data to the old data if there
' is any.
If Len(Dir(gBkupRstrFileName)) > 0 Then
Kill (gBkupRstrFileName)
End If

' Change mousepointer while trying to connect.
Screen.MousePointer = vbHourglass

' Backup the database.
oBackup.SQLBackup gSQLServer

' Change mousepointer back to the default after connect.
Screen.MousePointer = vbDefault

Set oBackupEvent = Nothing ' disable events
Set oBackup = Nothing

Exit Sub

ErrHandler:
MsgBox "Error " & Err.Description
Resume Next
End Sub

zjcxc 2003-12-19

打赏
举报

'将下面的内容保存成一个文件:form1.frm.在VB中新建一个工程,引用SQLDMO对象.再添加这个文件就行了.

VERSION 5.00
Object = "{F9043C88-F6F2-101A-A3C9-08002B2F49FB}#1.2#0"; "comdlg32.ocx"
Begin VB.Form frmBackRest
Caption = "Backup / Restore with Events"
ClientHeight = 5865
ClientLeft = 60
ClientTop = 345
ClientWidth = 8055
LinkTopic = "Form1"
LockControls = -1 'True
MaxButton = 0 'False
ScaleHeight = 5865
ScaleWidth = 8055
StartUpPosition = 3 'Windows Default
Begin MSComDlg.CommonDialog CommonDialog1
Left = 7440
Top = 1080
_ExtentX = 847
_ExtentY = 847
_Version = 393216
DialogTitle = "Data File Name:"
End
Begin VB.CommandButton cmdBrowse
Caption = "Browse..."
Height = 495
Left = 6960
TabIndex = 20
Top = 1680
Width = 975
End
Begin VB.ComboBox cmbDatabaseName
Height = 315
Left = 4560
TabIndex = 18
Top = 720
Width = 3375
End
Begin VB.TextBox txtDataFileName
Height = 288
Left = 4560
TabIndex = 16
Top = 2280
Width = 3375
End
Begin VB.Frame frmConnectionInfo
Caption = "Connection:"
Height = 855
Left = 120
TabIndex = 12
Top = 120
Width = 3855
Begin VB.TextBox txtServerName
Height = 288
Left = 1320
TabIndex = 13
Top = 360
Width = 2295
End
Begin VB.Label lblServer
Caption = "Server:"
Height = 255
Left = 240
TabIndex = 14
Top = 360
Width = 855
End
End
Begin VB.Frame frmAuthorization
Caption = "Authorization:"
Height = 1815
Left = 120
TabIndex = 5
Top = 1080
Width = 3855
Begin VB.TextBox txtUserName
Height = 288
Left = 1320
TabIndex = 9
Top = 1080
Width = 2292
End
Begin VB.TextBox txtPassword
Height = 288
IMEMode = 3 'DISABLE
Left = 1320
PasswordChar = "*"
TabIndex = 8
Top = 1440
Width = 2292
End
Begin VB.OptionButton optWinNTAuth
Caption = "Use Windows NT authentication"
Height = 252
Left = 240
TabIndex = 7
Top = 360
Width = 2892
End
Begin VB.OptionButton optSSAuth
Caption = "Use SQL Server authentication"
Height = 252
Left = 240
TabIndex = 6
Top = 720
Width = 3252
End
Begin VB.Label lblUserName
Caption = "Login name:"
Height = 255
Left = 240
TabIndex = 11
Top = 1080
Width = 975
End
Begin VB.Label lblPassword
Caption = "Password:"
Height = 255
Left = 240
TabIndex = 10
Top = 1440
Width = 975
End
End
Begin VB.TextBox txtStatus
Height = 1815
Left = 120
Locked = -1 'True
MultiLine = -1 'True
ScrollBars = 3 'Both
TabIndex = 4
Top = 3960
Width = 7815
End
Begin VB.CommandButton cmdDisconnect
Caption = "Disconnect"
Height = 495
Left = 2280
TabIndex = 3
Top = 3120
Width = 1215
End
Begin VB.CommandButton cmdConnect
Caption = "Connect"
Height = 495
Left = 600
TabIndex = 2
Top = 3120
Width = 1215
End
Begin VB.CommandButton cmdRestore
Caption = "Restore"
Height = 495
Left = 6480
TabIndex = 1
Top = 3120
Width = 1215
End
Begin VB.CommandButton cmdBackup
Caption = "Backup"
Height = 495
Left = 4800
TabIndex = 0
Top = 3120
Width = 1215
End
Begin VB.Label Label3
Caption = "Backup/Restore File Name:"
Height = 255
Left = 4560
TabIndex = 19
Top = 1800
Width = 2175
End
Begin VB.Label Label2
Caption = "Database To Backup/Restore:"
Height = 255
Left = 4560
TabIndex = 17
Top = 360
Width = 2775
End
Begin VB.Label lblQueryResults
Caption = "Status:"
Height = 255
Left = 120
TabIndex = 15
Top = 3720
Width = 615
End
End
Attribute VB_Name = "frmBackRest"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False

zjcxc 2003-12-19