MySQL在太阳下茁壮 在开源中强大
自从去年Sun收购MySQL之后,很多人都在关心MySQL的技术走向和市场策略;在Sun以OpenSPARC、Solaris、GlassFish、Java组成的技术体系中,MySQL作为数据库产品是个新成员,Sun会给它怎样的定位,MySQL的未来会怎样? MySQL 5.1版本的发布,给我们很好的解答:M
自从去年Sun收购MySQL之后,很多人都在关心MySQL的技术走向和市场策略;在Sun以OpenSPARC、Solaris、GlassFish、Java组成的技术体系中,MySQL作为数据库产品是个新成员,Sun会给它怎样的定位,MySQL的未来会怎样?
MySQL 5.1版本的发布,给我们很好的解答:MySQL正成为Sun开源战略体系中的重要一员,新增的企业级特性使MySQL变得更加强大和高效,在Sun全球强大的技术背景和服务体系中MySQL正在茁壮成长。
在今天(12月12日)举行的Sun MySQL客户高峰会议上,Sun派出多位技术专家向我们介绍MySQL新版本的技术亮点,Sun的软件策略和理念,与在场的200多位MySQL用户分享MySQL在中国的成功案例。
李永起先生讲解Sun的开源创新
MySQL 5.1新增特性
Sun亚太地区数据库产品销售总监Daniel向大家介绍了MySQL 5.1新增的几项企业级特性:
◆表格和索引分区:MySQL 5.1可以支持5种形式的水平数据分区:range、hash、key、list和复合composite分区(子分区)。通过表格和索引数据的分区,可做到仅仅是对需要的相关数据分区进行扫描,大大加快了查询响应速度。而且,有了分区特性,许多存储和其他维护操作变得更加容易和快速。
◆基于单元的复制:MySQL 5.1提供的两个新的复制选项。“基于单元的复制”和“混合复制”。单元复制可以轻松实现使复制主服务器和从服务器之间的数据变化,而不用通过传统的SQL语句,对于应用来讲,这就形成并保持了最有效的和最安全的复制机制。
◆事件调度工具:这是MySQL 5.1新增的一个工具,它可让开发者自动调度数据库服务器上要执行的、通用的基于SQL的循环(recurring)任务。这一特性比起Linux或Unix中的CRON,或Microsoft Windows的任务调度程序,可对数据库特定的任务提供更大的支持。
◆新的MySQL Query Analyzer (查询分析器) :MySQL Enterprise订购项目将提供Sun的这一新的MySQL Query Analyzer工具,该工具通过监控查询性能来精确定位和修改有问题的SQL 代码,可以大大改善MySQL数据库应用的速度和正常运行时间。
MySQL的开源商业模式
51CTO记者了解到,MySQL 5.1将采用GPL 2(GNL是由自由软件基金会发行的用于计算机软件的许可证。最初由Richard Stallman为GNU计划而撰写。目前大多数的GNU程序和超过半数的自由软件使用此许可证)通用公共许可证发行。这意味我们可以免费下载并使用MySQL 5.1,并根据自己的需要修改相应部分的源代码。
同时,Sun还会为需要技术支持的用户提供MySQL Enterprise版本的License许可。购买此版本的用户会得到MySQL技术专家 7*24 小时的服务,确保在MySQL的使用顺利,并可在危机时刻将损失降到最小。
Sun强大的产品体系使开源遍布IT的每个环节
MySQL+Memcached
目前,Web应用越来越广泛,网站架构越来越复杂,服务器的负担越来越重,如何解决大型架构重的负载均衡问题?答案是Cache。MySQL的研发人员向大家介绍的Cache is King的概念,并对MySQL+Memcached的优化组合进行了详细讲解。
目前,许多Web应用都将数据保存到RDBMS中,应用服务器从中读取数据并在浏览器中显示。但随着数据量的增大、访问的集中,就会出现RDBMS的负担加重、数据库响应恶化、网站显示延迟等重大影响。Memcached是高性能的分布式内存缓存服务器,可以通过缓存数据库查询结果,减少数据库访问次数,以提高动态Web应用的速度、提高可扩展性。Google、Yahoo、Youtube、Baidu、Digg、Facebook、Flickr等众多服务中提高Web应用扩展性的重要工具。
通过Memcached的MySQL函数(Functions for MySQL)可以很好的将MySQL与Memcached的结合,使Web应用的读写查询等操作分离并缓存,最大限度的减少数据库的访问次数,提高页面载入速度,降低系统占用。
谁在用MySQL ?
Sun合作伙伴,北京万里开源有限公司的技术经理吴嵩向大家介绍了MySQL在中国的发展情况。
目前,MySQL的装机量已经达到1200万套,并以每年200%的速度高速增长,在这些数字中,中国用户占用相当比例。2006年8月,MySQL中国研发中心成立,中国开发人员开始进入世界顶级开源项目的中心。目前,MySQL在中国已经有一只强大的本地技术团队,负责中国用户7*24小时技术支持服务,包含从产品安装、升级、培训到系统级的顾问服务等每一个应用环节。
在中国,采用MySQL的用户主要集中在金融、电信、互联网等多各行业,中国农业银行、中国建设银行、中国移动、中国邮政等都采用MySQL数据库构建业务应用;互联网方面的应用更是比比皆是:新浪、网易、百度、腾讯、人民网等,在MySQL的应用深度上堪比Google、Facebook、Yahoo等国外网站。
MySQL的应用无处不在
以人民网为例。作为中国八大政府网站之一,人民网每天会产生上千万次的点击,在两会期间,点击率还会成指数增长。为了达到良好的访问效果,人民网的强国论坛、博客、调查评论系统等90%以上的应用构建在MySQL数据库上,通过MySQL的复制技术,最大限度的减轻服务器的压力。
正如我们所看到的,MySQL正在Sun的整个产品体系中扮演重要的角色;我们有理由相信,Sun的开源创新理念和雄厚的技术背景会使MySQL更加强大高效,带给我们更多惊喜。

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











Laravel is a PHP framework for easy building of web applications. It provides a range of powerful features including: Installation: Install the Laravel CLI globally with Composer and create applications in the project directory. Routing: Define the relationship between the URL and the handler in routes/web.php. View: Create a view in resources/views to render the application's interface. Database Integration: Provides out-of-the-box integration with databases such as MySQL and uses migration to create and modify tables. Model and Controller: The model represents the database entity and the controller processes HTTP requests.

MySQL and phpMyAdmin are powerful database management tools. 1) MySQL is used to create databases and tables, and to execute DML and SQL queries. 2) phpMyAdmin provides an intuitive interface for database management, table structure management, data operations and user permission management.

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.

Article summary: This article provides detailed step-by-step instructions to guide readers on how to easily install the Laravel framework. Laravel is a powerful PHP framework that speeds up the development process of web applications. This tutorial covers the installation process from system requirements to configuring databases and setting up routing. By following these steps, readers can quickly and efficiently lay a solid foundation for their Laravel project.

In MySQL, the function of foreign keys is to establish the relationship between tables and ensure the consistency and integrity of the data. Foreign keys maintain the effectiveness of data through reference integrity checks and cascading operations. Pay attention to performance optimization and avoid common errors when using them.

The main difference between MySQL and MariaDB is performance, functionality and license: 1. MySQL is developed by Oracle, and MariaDB is its fork. 2. MariaDB may perform better in high load environments. 3.MariaDB provides more storage engines and functions. 4.MySQL adopts a dual license, and MariaDB is completely open source. The existing infrastructure, performance requirements, functional requirements and license costs should be taken into account when choosing.

Abstract of the first paragraph of the article: When choosing software to develop Yi framework applications, multiple factors need to be considered. While native mobile application development tools such as XCode and Android Studio can provide strong control and flexibility, cross-platform frameworks such as React Native and Flutter are becoming increasingly popular with the benefits of being able to deploy to multiple platforms at once. For developers new to mobile development, low-code or no-code platforms such as AppSheet and Glide can quickly and easily build applications. Additionally, cloud service providers such as AWS Amplify and Firebase provide comprehensive tools

SQL is a standard language for managing relational databases, while MySQL is a database management system that uses SQL. SQL defines ways to interact with a database, including CRUD operations, while MySQL implements the SQL standard and provides additional features such as stored procedures and triggers.
