2月份浏览器市场排行榜出炉 Chrome份额再次上升
美国互联网流量监测机构Net Applications今天发布了2011年2月份最新浏览器市场占有率及排行统计数据，统计结果显示，2011年2月，微软IE浏览器全球市场份额有所增长，由1月的56%上升到56.77%，相信这一增长与IE9 RC版的发布不无关系，而伴随着3月份IE9正式版
美国互联网流量监测机构Net Applications今天发布了2011年2月份最新浏览器市场占有率及排行统计数据，统计结果显示，2011年2月，微软IE浏览器全球市场份额有所增长，由1月的56%上升到56.77%，相信这一增长与IE9 RC版的发布不无关系，而伴随着3月份IE9正式版的发布，相信IE浏览器全球市场份额将会进一步的提高。
浏览器市场占有率图
Net Applications统计数据还显示，今年2月份谷歌Chrome浏览器全球市场份额再次上升，由1月份的10.7%增至10.93%，虽然说增幅不大，但长期以来Chrome可谓稳扎稳打，市场份额的持续增长是其他浏览器都没有的。
也许是厌倦了没完没了的Beta版，有一部分用户在一月份选择放弃了Firefox浏览器，2月份市场占有率为21.74%，相较1月份的22.75%下降1.01%。不知道即将来临的Firefox 4.0 RC版能否帮Firefox挽回一些市场份额呢？
苹果Safari相应市场份额由1月的6.30%增至6.36%，而Opera浏览器则由1月的2.28%下降到2.15%。
据不完全可靠的消息，3月份我们获奖迎来IE9 浏览器的正式版，而Firefox也将结束最后一个Beta版本，代号“梭鱼”的Opera浏览器也将给我带来一些惊喜，3月份又将是各浏览器厂商抢滩夺陆的一个重要月份！
MySQL's Place: Databases and ProgrammingApr 13, 2025 am 12:18 AMMySQL's position in databases and programming is very important. It is an open source relational database management system that is widely used in various application scenarios. 1) MySQL provides efficient data storage, organization and retrieval functions, supporting Web, mobile and enterprise-level systems. 2) It uses a client-server architecture, supports multiple storage engines and index optimization. 3) Basic usages include creating tables and inserting data, and advanced usages involve multi-table JOINs and complex queries. 4) Frequently asked questions such as SQL syntax errors and performance issues can be debugged through the EXPLAIN command and slow query log. 5) Performance optimization methods include rational use of indexes, optimized query and use of caches. Best practices include using transactions and PreparedStatemen
MySQL: From Small Businesses to Large EnterprisesApr 13, 2025 am 12:17 AMMySQL is suitable for small and large enterprises. 1) Small businesses can use MySQL for basic data management, such as storing customer information. 2) Large enterprises can use MySQL to process massive data and complex business logic to optimize query performance and transaction processing.
What are phantom reads and how does InnoDB prevent them (Next-Key Locking)?Apr 13, 2025 am 12:16 AMInnoDB effectively prevents phantom reading through Next-KeyLocking mechanism. 1) Next-KeyLocking combines row lock and gap lock to lock records and their gaps to prevent new records from being inserted. 2) In practical applications, by optimizing query and adjusting isolation levels, lock competition can be reduced and concurrency performance can be improved.
MySQL: Not a Programming Language, But...Apr 13, 2025 am 12:03 AMMySQL is not a programming language, but its query language SQL has the characteristics of a programming language: 1. SQL supports conditional judgment, loops and variable operations; 2. Through stored procedures, triggers and functions, users can perform complex logical operations in the database.
MySQL: An Introduction to the World's Most Popular DatabaseApr 12, 2025 am 12:18 AMMySQL 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.
The Importance of MySQL: Data Storage and ManagementApr 12, 2025 am 12:18 AMMySQL is an open source relational database management system suitable for data storage, management, query and security. 1. It supports a variety of operating systems and is widely used in Web applications and other fields. 2. Through the client-server architecture and different storage engines, MySQL processes data efficiently. 3. Basic usage includes creating databases and tables, inserting, querying and updating data. 4. Advanced usage involves complex queries and stored procedures. 5. Common errors can be debugged through the EXPLAIN statement. 6. Performance optimization includes the rational use of indexes and optimized query statements.
Why Use MySQL? Benefits and AdvantagesApr 12, 2025 am 12:17 AMMySQL 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.
Describe InnoDB locking mechanisms (shared locks, exclusive locks, intention locks, record locks, gap locks, next-key locks).Apr 12, 2025 am 12:16 AMInnoDB's lock mechanisms include shared locks, exclusive locks, intention locks, record locks, gap locks and next key locks. 1. Shared lock allows transactions to read data without preventing other transactions from reading. 2. Exclusive lock prevents other transactions from reading and modifying data. 3. Intention lock optimizes lock efficiency. 4. Record lock lock index record. 5. Gap lock locks index recording gap. 6. The next key lock is a combination of record lock and gap lock to ensure data consistency.
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