Apache
本文所述是在windows2003上搭建,软件版本为Apache2.2.6(Win32),PHP5.2.4,MySQL5.0.45,phpMyAdmin2.11.1。Apache和MySQL需要安装,PHP和phpmyadmin都是解压配置使用。
详细的安装过程就不说了,到网上搜索一大片,这里只是说说在搭建过程中我遇到的几个问题,以便大家遇到同样的问题有个参考。
1、PHP目录下的php5ts.dll和libmysql.dll要复制到系统的system32目录下。
2、php.ini是否复制到windows目录下以前版本不清楚,但我并没把php.ini复制到windows目录下,直接把php.ini-dist改名放在php目录下。当然在Apache的httpd.conf配置文件内要加一行PHPINIDir c:/php/php.ini(我的PHP装在C盘PHP目录下)。
3、Apache出现403拒绝访问错误
在httpd.conf文件中,根据自己网站的目录修改DocumentRoot "I:/blog"
4、如何让.htaccess文件起作用
Apache默认是.htaccess不起作用的,想让.htaccess起作用,就要修改httpd.conf文件,在文件中找到单独一行的llowOverride none,修改成AllowOverride All或AllowOverride fileinfo。
5、使用phpmyadmin之前要记住修改config.inc.php(这个文件是由config.sample.inc.php改名得来的)中的$cfg['blowfish_secret'] = '',在''中间随意填写字符,如dfdf877ddff。
6、phpmyadmin出现1045错误
从网上搜索的结果都是说因为密码问题,我碰到的并不是密码的问题,而是我在服务器上用域名形式来访问,如http://blog.tryboy.org/phpadmin,如用http://localhost/phpmyadmin或http://127.0.0.1/phpmyadmin访问就一切正常,可能由于MYSQL设置了“不允许远程主机通过ROOT权限访问”,所以用http://blog.tryboy.org/phpadmin来访问就被当作是远程主机访问了。
7、phpmyadmin出现“无法载入 mcrypt 扩展,请检查 PHP 配置”提示
虽然出现这提示,对一般使用没什么影响。如想解决,就先在PHP的php.ini配置中,将php_mcrypt.dll前的;去掉。 2、从php5中复制libmcrypt.dll到系统system32目录下。
8、想启用apache的Rewrite Mod,就要修改httpd.conf文件中的#LoadModule rewrite_module modules/mod_rewrite.so,把并面的#去掉。
9、修改httpd.conf文件要重启Apache才生效。

InnoDBBufferPool reduces disk I/O by caching data and indexing pages, improving database performance. Its working principle includes: 1. Data reading: Read data from BufferPool; 2. Data writing: After modifying the data, write to BufferPool and refresh it to disk regularly; 3. Cache management: Use the LRU algorithm to manage cache pages; 4. Reading mechanism: Load adjacent data pages in advance. By sizing the BufferPool and using multiple instances, database performance can be optimized.

Compared with other programming languages, MySQL is mainly used to store and manage data, while other languages such as Python, Java, and C are used for logical processing and application development. MySQL is known for its high performance, scalability and cross-platform support, suitable for data management needs, while other languages have advantages in their respective fields such as data analytics, enterprise applications, and system programming.

MySQL is worth learning because it is a powerful open source database management system suitable for data storage, management and analysis. 1) MySQL is a relational database that uses SQL to operate data and is suitable for structured data management. 2) The SQL language is the key to interacting with MySQL and supports CRUD operations. 3) The working principle of MySQL includes client/server architecture, storage engine and query optimizer. 4) Basic usage includes creating databases and tables, and advanced usage involves joining tables using JOIN. 5) Common errors include syntax errors and permission issues, and debugging skills include checking syntax and using EXPLAIN commands. 6) Performance optimization involves the use of indexes, optimization of SQL statements and regular maintenance of databases.

MySQL is suitable for beginners to learn database skills. 1. Install MySQL server and client tools. 2. Understand basic SQL queries, such as SELECT. 3. Master data operations: create tables, insert, update, and delete data. 4. Learn advanced skills: subquery and window functions. 5. Debugging and optimization: Check syntax, use indexes, avoid SELECT*, and use LIMIT.

MySQL efficiently manages structured data through table structure and SQL query, and implements inter-table relationships through foreign keys. 1. Define the data format and type when creating a table. 2. Use foreign keys to establish relationships between tables. 3. Improve performance through indexing and query optimization. 4. Regularly backup and monitor databases to ensure data security and performance optimization.

MySQL is an open source relational database management system that is widely used in Web development. Its key features include: 1. Supports multiple storage engines, such as InnoDB and MyISAM, suitable for different scenarios; 2. Provides master-slave replication functions to facilitate load balancing and data backup; 3. Improve query efficiency through query optimization and index use.

SQL is used to interact with MySQL database to realize data addition, deletion, modification, inspection and database design. 1) SQL performs data operations through SELECT, INSERT, UPDATE, DELETE statements; 2) Use CREATE, ALTER, DROP statements for database design and management; 3) Complex queries and data analysis are implemented through SQL to improve business decision-making efficiency.

The basic operations of MySQL include creating databases, tables, and using SQL to perform CRUD operations on data. 1. Create a database: CREATEDATABASEmy_first_db; 2. Create a table: CREATETABLEbooks(idINTAUTO_INCREMENTPRIMARYKEY, titleVARCHAR(100)NOTNULL, authorVARCHAR(100)NOTNULL, published_yearINT); 3. Insert data: INSERTINTObooks(title, author, published_year)VA


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