控制面板--“点击打开或关闭Windows功能”，会弹出Windows功能对话框，我们在里面找到“Telnet服务器”和“Telne客户端”两项，然后将之前的勾选上即可开启对应服务了，打上勾后，要记得点击底部的确认保存哦，如下图： 二、在cmd中键入以下指令 telnet loca
控制面板--“点击打开或关闭Windows功能”，会弹出Windows功能对话框，我们在里面找到“Telnet服务器”和“Telne客户端”两项，然后将之前的勾选上即可开启对应服务了，打上勾后，要记得点击底部的确认保存哦，如下图：
二、在cmd中键入以下指令
telnet localhost 1433
如果出现连接失败，则表明配置存在问题，请继续下步骤
三、配置tcp/ip 1433端口
1、打开SQLserver Configuration Manager工具，在sql Server service中，关闭对应的实例服务；
2、在SQLserver Network Configuration 中，找到tcp/ip 配置，双机打开，如下图
（注意：IP1-IP6 全部要enable，然后在IPall 中把动态端口全部设置为1433）
3、再把 之前关闭的实例启动即可。
四、再次验证telnet，Ok的话就说明1433端口设置成功
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
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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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