恢复从 Access 2000、 Access 2002 或 Access 2003 中数据库删除
恢复从 Access 2000、 Access 2002 或 Access 2003 中数据库删除表的方法
注意 : 本文示例代码使用 Microsoft 数据访问对象。 为此代码才能正常运行, 您必须引用 Microsoft DAO 3.6 对象库。 可以进行, 单击 工具 菜单中 VisualBasic 编辑器, 上 引用 并确保选中 Microsoft DAO 3.6 对象库 复选框。1. 在 MicrosoftAccess 中打开数据库。
2. 在数据库窗口, 单击下 对象 , 模块 , 然后单击 新建 。
3. 键入或粘贴以下代码, 您只有创建模块中:
代码如下:
Function RecoverDeletedTable()
On Error GoTo ExitHere
'*Declarations*
Dim db As DAO.Database
Dim strTableName As String
Dim strSQL As String
Dim intCount As Integer
Dim blnRestored As Boolean
'*Init*
Set db = CurrentDb()
'*Procedure*
For intCount = 0 To db.TableDefs.Count - 1
strTableName = db.TableDefs(intCount).Name
If Left(strTableName, 4) = "~tmp" Then
strSQL = "SELECT DISTINCTROW [" & strTableName & "].* INTO " & Mid(strTableName, 5) & " FROM [" & strTableName & "];"
DoCmd.SetWarnings False
DoCmd.RunSQL strSQL
MsgBox "A deleted table has been restored, using the name '" & Mid(strTableName, 5) & "'", vbOKOnly, "Restored"
blnRestored = True
End If
Next intCount
If blnRestored = False Then
MsgBox "No recoverable tables found", vbOKOnly
End If
'*EXIT/ERROR*
ExitHere:
DoCmd.SetWarnings True
Set db = Nothing
Exit Function
ErrorHandler:
MsgBox Err.Description
Resume ExitHere
End Function
4. 在 调试 菜单上, 单击 编译 数据库名称 数据库名称 。
5. 保存为 RecoverTable 模块。 要测试此函数, 首先创建两个表, 添加行, 并删除这两个表。
6. 在即时窗口, 键入以下行, 然后按 ENTER 键:
RecoverDeletedTable

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

1. Open settings in Windows 11. You can use Win+I shortcut or any other method. 2. Go to the Apps section and click Apps & Features. 3. Find the application you want to prevent from running in the background. Click the three-dot button and select Advanced Options. 4. Find the [Background Application Permissions] section and select the desired value. By default, Windows 11 sets power optimization mode. It allows Windows to manage how applications work in the background. For example, once you enable battery saver mode to preserve battery, the system will automatically close all apps. 5. Select [Never] to prevent the application from running in the background. Please note that if you notice that the program is not sending you notifications, failing to update data, etc., you can

DeepSeek cannot convert files directly to PDF. Depending on the file type, you can use different methods: Common documents (Word, Excel, PowerPoint): Use Microsoft Office, LibreOffice and other software to export as PDF. Image: Save as PDF using image viewer or image processing software. Web pages: Use the browser's "Print into PDF" function or the dedicated web page to PDF tool. Uncommon formats: Find the right converter and convert it to PDF. It is crucial to choose the right tools and develop a plan based on the actual situation.

The way to update ByBit exchanges varies by platform and device: Mobile: Check for updates and install in the app store. Desktop Client: Check for updates in the Help menu and install automatically. Web page: You need to manually access the official website for updates. Failure to update the exchange can lead to security vulnerabilities, functional limitations, compatibility issues and reduced transaction execution efficiency.

The Java reflection mechanism allows programs to dynamically modify the behavior of classes without modifying the source code. By operating the Class object, you can create instances through newInstance(), modify private field values, call private methods, etc. Reflection should be used with caution, however, as it can cause unexpected behavior and security issues, and has a performance overhead.

Common exception types and their repair measures in Java function development During the development of Java functions, various exceptions may be encountered, which affect the correct execution of the function. The following are common exception types and their repair measures: 1. NullPointerException Description: Thrown when accessing an object that has not been initialized. Fix: Make sure you check the object for non-null before using it. Sample code: try{Stringname=null;System.out.println(name.length());}catch(NullPointerExceptione){

Oracle can read dbf files through the following steps: create an external table and reference the dbf file; query the external table to retrieve data; import the data into the Oracle table.

Ways to solve iframe cross-domain issues in Vue: CORS: Enable CORS support in the backend server and use XMLHttpRequest or fetch API to send CORS requests in Vue. JSONP: Dynamically load JSONP scripts in Vue using the JSONP endpoint in the backend server. Proxy server: Set up a proxy server to forward requests, use a third-party library (such as axios) in Vue to send requests and set the proxy server URL.

The EXPLAIN command in Oracle is used to analyze the execution plan of a SQL statement. The method of use is to add the EXPLAIN keyword before the SQL statement. EXPLAIN results contain information such as ID, operator type, row count estimate, cost estimate, output row count estimate, access predicates, and filter predicates, which can be used to optimize query performance, identify costly operators, and tables that may benefit from optimization techniques.
