Redhat
redhat8 mysql安装具体过程
安装顺序
rpm -ivh mysql-3.23.41-1.i386.rpm
rpm -ivh mysql-devel-3.23.41-1.i386.rpm
rpm -ivh mysql-server-3.23.41-1.i386.rpm
[root@localhost perl]# rpm -ivh mysql-3.2*.rpm //第一个包就不顺
warning: mysql-3.23.52-3.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
error: Failed dependencies:
perl-DBI is needed by mysql-3.23.52-3
perl-DBD-MySQL is needed by mysql-3.23.52-3
perl(CGI) is needed by mysql-3.23.52-3
perl(DBI) is needed by mysql-3.23.52-3
down perl-DBD-MySQL在disk3/redhat/RPMS下
perl-DBI在disk2/redhat/RPMS下
[root@localhost perl]# rpm -ivh perl-CGI*.rpm //以后会用到先装
warning: perl-CGI-2.81-55.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
Preparing... ########################################### [100%]
1:perl-CGI ########################################### [100%]
[root@localhost perl]# rpm -ivh perl-DBI*
warning: perl-DBI-1.30-1.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
Preparing... ########################################### [100%]
1:perl-DBI ########################################### [100%]
[root@localhost perl]# rpm -ivh perl-DBD-MySQL*
warning: perl-DBD-MySQL-2.1017-3.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
error: Failed dependencies:
libmysqlclient.so.10 is needed by perl-DBD-MySQL-2.1017-3
google "libmysqlclient.so.10 mysql" //呵呵这个可是难倒了很多好汉
[root@localhost perl]# rpm -ivh libmysql*
warning: libmysql10-3.23.56-1.4mdk.i586.rpm: V3 DSA signature: NOKEY, key ID 22458a98
Preparing... ########################################### [100%]
1:libmysql10 ########################################### [100%]
[root@localhost perl]# rpm -ivh perl-DBD-MySQL*
warning: perl-DBD-MySQL-2.1017-3.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
Preparing... ########################################### [100%]
1:perl-DBD-MySQL ########################################### [100%]
[root@localhost perl]# rpm -ivh mysql-3.23*
warning: mysql-3.23.52-3.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
Preparing... ########################################### [100%]
1:mysql ########################################### [100%]
[root@localhost perl]# rpm -ivh mysql-devel*
warning: mysql-devel-3.23.52-3.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
Preparing... ########################################### [100%]
1:mysql-devel ########################################### [100%]
[root@localhost perl]# rpm -ivh mysql-server*
warning: mysql-server-3.23.52-3.i386.rpm: V3 DSA signature: NOKEY, key ID db42a60e
Preparing... ########################################### [100%]
1:mysql-server ########################################### [100%]
安装测试
[root@localhost perl]# mysql
ERROR 2002: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
在搜索里找不到mysql执行程序，只有rpm安装包
在“服务”-看到了新增的 mysqld 打勾，restart
[root@localhost perl]# mysql
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 1 to server version: 3.23.52
Type 'help;' or 'h' for help. Type 'c' to clear the buffer.
mysql>
mysql成功安装并启动
因为缺省情况下mysql的root用户没有口令，使用下列
[root@localhost perl]# mysqladmin -u root password 747858969
[root@localhost perl]# mysql
ERROR 1045: Access denied for user: 'root@localhost' (Using password: NO)
[root@localhost etc]# mysql -u root -p
Enter password:****
mysql>
小技巧：
系统监视器-系统监视器 可以看到硬盘的使用情况
Explain the InnoDB Buffer Pool and its importance for performance.Apr 19, 2025 am 12:24 AMInnoDBBufferPool 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.
MySQL vs. Other Programming Languages: A ComparisonApr 19, 2025 am 12:22 AMCompared 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.
Learning MySQL: A Step-by-Step Guide for New UsersApr 19, 2025 am 12:19 AMMySQL 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: Essential Skills for Beginners to MasterApr 18, 2025 am 12:24 AMMySQL 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: Structured Data and Relational DatabasesApr 18, 2025 am 12:22 AMMySQL 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: Key Features and Capabilities ExplainedApr 18, 2025 am 12:17 AMMySQL 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.
The Purpose of SQL: Interacting with MySQL DatabasesApr 18, 2025 am 12:12 AMSQL 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.
MySQL for Beginners: Getting Started with Database ManagementApr 18, 2025 am 12:10 AMThe 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
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
SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.
MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.
Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.
