症状:输入密码一闪而过,一点提示也没有,密码首先保证是正确的..
于是就想到了 直接跳过权限验证 ,用到了以下的方法:
一、
首先进入cmd 切入MySQL的安装目录,然后切入 bin 目录 ,输入mysqld-nt --skip-
grant-tables命令。
这个 cmd 窗口先不要关闭, 打开另一个窗口 登陆MySQL 或直接点开 MySQL Command
Line Client 输入正确的密码, 就OK了!
二、在你的WINDOWS上,先按 [开始], 然后 [运行] ,输入 cmd 然后回车
然后再在这个DOS窗体中, cd 到/MySQL Server 5.1/bin目录下 (回车) 注意红字就不要
打成汉字了,是让你按回车键,如果不知道回车键在哪儿,请自行查一下GOOGLE。
然后再mysql -u root -p (回车) 这里的红字同上。
Enter password: 输入密码即可。
三、有些朋友经过上面的设置后,登录却又提示“mysql: unknown variable
'character-set-server=gbk'”,解决方法很简单(说明下我的是windows2003的环境),修
改mysql安装目录下的my.ini文件,将里面的default-character-set=gbk注释或删除掉,
在服务里重启下mysql服务即可。
又遇到问题mysqld-nt --skip-grant-tables提示不是内部或外部命令,直接启动mysql 提
示错误2003 can't connect to mysql server on 'localhost'(10061)
解救办法:找到my-small.ini复制保存为my.ini 在[mysqld]中加一句bind-address =
0.0.0.0
然后启动mysql 可以连接了。(亲试,可用)

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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