MySQL驱动使用方法
怎样在vc、delphi、vb等程序中使用mysql呢(mysql odbc驱动程序的使用) 我们经常会遇到这样问题,怎样在非web程序或asp程序中使用
怎样在vc、delphi、vb等程序中使用mysql呢(mysql odbc驱动程序的使用)
我们经常会遇到这样问题,怎样在非web程序或asp程序中使用mysql数据库呢?对于这个问题有两个解决方案:
1.使用mysql提供的api函数库。
很多有名的mysql客户端工具就是这样实现的,大名鼎鼎的winmysql工具就是这样的。这在大部分的开发工具中都可以实现。
比如vc,bcb,delphi,vb等,只要能调用第三方的api就能实现。但对程序员的要求很高,而且要熟悉一套mysql的api函数集,这不是对每个人都很轻松的事。而且这种方法不能用于asp等程序,因为它不支持com对象。
2。第二种是使用myodbc驱动程序。
你可以到下载myodbc驱动程序,然后照着下面的做就可以了。
第一种选择是下载完全安装包,这种包很大,但对于我们来说有用的只有myodbc.dll这个文件,却要下载这么大的文件,不太合适。当然,,如果你很菜的话,我建议你选择这种方式,这样容易些,但不符合cfans的作风,是吧。
第二种是直接下载myodbc.dll文件,只有几百k,但不太容易使用,本人经过很久摸索才找到使用它的方法。
首先你将包解开,将myodbc.dll 文件放到windowssystem 或 winntsystem32目录下,这取决于你的系统是win9x还是winnt(win2k),你应该知道吧。
然后打开一纯文本编辑器,如editplus,notpad之类,(取决于你的喜好)将下面一段话保存为一文件,扩展名为.reg,知道了吧,这是注册表文件,不要搞
错呀(不包括下面的一长串等号)
如果你用的是win2k请将第一行换成
Windows Registry Editor Version 5.00
==========================================================从下行开始
Windows Registry Editor Version 4.00
[HKEY_LOCAL_MACHINESOFTWAREODBCODBCINST.INImyodbc driver]
"UsageCount"=dword:00000002
"Driver"="C:\WINNT\System32\myodbc.dll"
"Setup"="C:\WINNT\System32\myodbc.dll"
"SQLLevel"="1"
"FileUsage"="0"
"DriverODBCVer"="02.50"
"ConnectFunctions"="YYY"
"APILevel"="1"
"CpTimeout"="120"
[HKEY_LOCAL_MACHINESOFTWAREODBCODBCINST.INIODBC Drivers]
"myodbc driver"="installed"

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











MySQL is an open source relational database management system, mainly used to store and retrieve data quickly and reliably. Its working principle includes client requests, query resolution, execution of queries and return results. Examples of usage include creating tables, inserting and querying data, and advanced features such as JOIN operations. Common errors involve SQL syntax, data types, and permissions, and optimization suggestions include the use of indexes, optimized queries, and partitioning of tables.

In Oracle, the FOR LOOP loop can create cursors dynamically. The steps are: 1. Define the cursor type; 2. Create the loop; 3. Create the cursor dynamically; 4. Execute the cursor; 5. Close the cursor. Example: A cursor can be created cycle-by-circuit to display the names and salaries of the top 10 employees.

MySQL is chosen for its performance, reliability, ease of use, and community support. 1.MySQL provides efficient data storage and retrieval functions, supporting multiple data types and advanced query operations. 2. Adopt client-server architecture and multiple storage engines to support transaction and query optimization. 3. Easy to use, supports a variety of operating systems and programming languages. 4. Have strong community support and provide rich resources and solutions.

Building a Hadoop Distributed File System (HDFS) on a CentOS system requires multiple steps. This article provides a brief configuration guide. 1. Prepare to install JDK in the early stage: Install JavaDevelopmentKit (JDK) on all nodes, and the version must be compatible with Hadoop. The installation package can be downloaded from the Oracle official website. Environment variable configuration: Edit /etc/profile file, set Java and Hadoop environment variables, so that the system can find the installation path of JDK and Hadoop. 2. Security configuration: SSH password-free login to generate SSH key: Use the ssh-keygen command on each node

When Oracle log files are full, the following solutions can be adopted: 1) Clean old log files; 2) Increase the log file size; 3) Increase the log file group; 4) Set up automatic log management; 5) Reinitialize the database. Before implementing any solution, it is recommended to back up the database to prevent data loss.

MySQL is suitable for web applications and content management systems and is popular for its open source, high performance and ease of use. 1) Compared with PostgreSQL, MySQL performs better in simple queries and high concurrent read operations. 2) Compared with Oracle, MySQL is more popular among small and medium-sized enterprises because of its open source and low cost. 3) Compared with Microsoft SQL Server, MySQL is more suitable for cross-platform applications. 4) Unlike MongoDB, MySQL is more suitable for structured data and transaction processing.

Oracle is not only a database company, but also a leader in cloud computing and ERP systems. 1. Oracle provides comprehensive solutions from database to cloud services and ERP systems. 2. OracleCloud challenges AWS and Azure, providing IaaS, PaaS and SaaS services. 3. Oracle's ERP systems such as E-BusinessSuite and FusionApplications help enterprises optimize operations.

To stop an Oracle database, perform the following steps: 1. Connect to the database; 2. Shutdown immediately; 3. Shutdown abort completely.
