Access入门教程 18.2 如何链接外部数据
我们先来打开一个Access 数据 库， 入门 教程 18.2 如何 链接 外部 数据 " /> 单击文件菜单上的获取 外部 数据 项，并单击其子菜单上的'链接表'命令。现在弹出一个对话框，很像Access中打开一个文件的对话框。 入门 教程 18.2 如何 链接 外部 数据 " /> 我们
我们先来打开一个Access数据库，
单击"文件"菜单上的"获取外部数据"项，并单击其子菜单上的'链接表'命令。现在弹出一个对话框，很像Access中打开一个文件的对话框。
我们现在导入一个DBASE数据库文件。先将鼠标移动到"文件类型"下拉框上，单击鼠标左键，弹出一个下拉列表。
这些文件类型链接的方法基本上是一样的，你只要选中相应的数据库类型，并且选中需要的数据库文件，就可以完成链接工作。
例如，现在我要将DBASE 5数据库文件"用户数据库。dbf"中的表链接到Access中来，只要先在文件类型下拉框中选中"DBASE 5",然后在"查找范围"下拉框中选中这个文件的所在目录，选择"用户数据库。DBF"项，双击，
很快在屏幕上就会弹出一个提示框，告诉我们这次链接操作已经成功，单击"确定"按钮。
我们又回到"链接"对话框上了，将这个导入对话框关闭，现在会发现在数据库窗口的表对象中"已有的对象列表"中已经有了一个名字为"用户数据库"的表了。
打开这个表看看，表中的数据和原来DBASE 5数据表中的数据是一致的。这样就能很方便地将原来的系统更新，不必担心数据转化的问题了。
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
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
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
How to use sql if statement
Apr 09, 2025 pm 06:12 PM
SQL IF statements are used to conditionally execute SQL statements, with the syntax as: IF (condition) THEN {statement} ELSE {statement} END IF;. The condition can be any valid SQL expression, and if the condition is true, execute the THEN clause; if the condition is false, execute the ELSE clause. IF statements can be nested, allowing for more complex conditional checks.
Unable to log in to mysql as root
Apr 08, 2025 pm 04:54 PM
The main reasons why you cannot log in to MySQL as root are permission problems, configuration file errors, password inconsistent, socket file problems, or firewall interception. The solution includes: check whether the bind-address parameter in the configuration file is configured correctly. Check whether the root user permissions have been modified or deleted and reset. Verify that the password is accurate, including case and special characters. Check socket file permission settings and paths. Check that the firewall blocks connections to the MySQL server.
What are the benefits of multithreading in c#?
Apr 03, 2025 pm 02:51 PM
The advantage of multithreading is that it can improve performance and resource utilization, especially for processing large amounts of data or performing time-consuming operations. It allows multiple tasks to be performed simultaneously, improving efficiency. However, too many threads can lead to performance degradation, so you need to carefully select the number of threads based on the number of CPU cores and task characteristics. In addition, multi-threaded programming involves challenges such as deadlock and race conditions, which need to be solved using synchronization mechanisms, and requires solid knowledge of concurrent programming, weighing the pros and cons and using them with caution.
How to configure zend for apache
Apr 13, 2025 pm 12:57 PM
How to configure Zend in Apache? The steps to configure Zend Framework in an Apache Web Server are as follows: Install Zend Framework and extract it into the Web Server directory. Create a .htaccess file. Create the Zend application directory and add the index.php file. Configure the Zend application (application.ini). Restart the Apache Web server.
How to solve the 'Network Error' caused by Vue Axios across domains
Apr 07, 2025 pm 10:27 PM
Methods to solve the cross-domain problem of Vue Axios include: Configuring the CORS header on the server side using the Axios proxy using JSONP using WebSocket using the CORS plug-in
Summary of phpmyadmin vulnerabilities
Apr 10, 2025 pm 10:24 PM
The key to PHPMyAdmin security defense strategy is: 1. Use the latest version of PHPMyAdmin and regularly update PHP and MySQL; 2. Strictly control access rights, use .htaccess or web server access control; 3. Enable strong password and two-factor authentication; 4. Back up the database regularly; 5. Carefully check the configuration files to avoid exposing sensitive information; 6. Use Web Application Firewall (WAF); 7. Carry out security audits. These measures can effectively reduce the security risks caused by PHPMyAdmin due to improper configuration, over-old version or environmental security risks, and ensure the security of the database.
How to monitor Nginx SSL performance on Debian
Apr 12, 2025 pm 10:18 PM
This article describes how to effectively monitor the SSL performance of Nginx servers on Debian systems. We will use NginxExporter to export Nginx status data to Prometheus and then visually display it through Grafana. Step 1: Configuring Nginx First, we need to enable the stub_status module in the Nginx configuration file to obtain the status information of Nginx. Add the following snippet in your Nginx configuration file (usually located in /etc/nginx/nginx.conf or its include file): location/nginx_status{stub_status
What is apache server? What is apache server for?
Apr 13, 2025 am 11:57 AM
Apache server is a powerful web server software that acts as a bridge between browsers and website servers. 1. It handles HTTP requests and returns web page content based on requests; 2. Modular design allows extended functions, such as support for SSL encryption and dynamic web pages; 3. Configuration files (such as virtual host configurations) need to be carefully set to avoid security vulnerabilities, and optimize performance parameters, such as thread count and timeout time, in order to build high-performance and secure web applications.
