今天有空来测试下最新的CentOS 6.4下安装最新数据库MySQL5.6.11 CentOS 6.4系统安装在这里不再叙述 CentOS 6.4采用最小化安装 My
今天有空来测试下最新的CentOS 6.4下安装最新数据库MySQL5.6.11
CentOS 6.4系统安装在这里不再叙述
CentOS 6.4采用最小化安装
MySQL5.6.11采用源码包安装
初始化系统:关掉iptables和selinux功能,原因只是测试
安装一些mysql需要的依赖包
#yum install -y wget gcc-c++ ncurses-devel cmake make perl
下载mysql5.6.11
#wget
CentOS 6.4在默认安装下,在 /etc/my.cnf会有这个文件,需要改名字(不然会影响后面服务的启动)
详细错误请参考我的另一篇介绍
创建mysql组和用户
#groupadd mysql
#useradd -g mysql mysql
创建存放目录
#mkdir /usr/local/mysql
#mkdir /data/mysql
解压mysql的tar包
#tar zxvf mysql-5.6.11.tar.gzcmake \
-DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
-DMYSQL_UNIX_ADDR=/usr/local/mysql/mysql.sock \
-DDEFAULT_CHARSET=utf8 \
-DDEFAULT_COLLATION=utf8_general_ci \
-DWITH_MYISAM_STORAGE_ENGINE=1 \
-DWITH_INNOBASE_STORAGE_ENGINE=1 \
-DWITH_ARCHIVE_STORAGE_ENGINE=1 \
-DWITH_BLACKHOLE_STORAGE_ENGINE=1 \
-DWITH_MEMORY_STORAGE_ENGINE=1 \
-DWITH_READLINE=1 \
-DENABLED_LOCAL_INFILE=1 \
-DMYSQL_DATADIR=/data/mysql \
-DMYSQL_USER=mysql \
-DMYSQL_TCP_PORT=3306
#cd mysql-5.6.11
#make;make install
这里需要等待好长一段时间,,可以去喝杯水,~~
这里需要给mysql需要执行的命令增加一个环境变量
#vi /etc/profile
加入一下两句
PATH=$PATH:/usr/local/mysql/bin:/usr/local/mysql/lib/
export PATH
保存推出,让其立即生效
#source /etc/profile
赋予mysql权限
#chown -R mysql:mysql /usr/local/mysql
#chown -R mysql:mysql /data/mysql
执行初始化配置脚本,创建系统自带的数据库和表。
#mysql_install_db --user=mysql --datadir=/data/mysql
初始化脚本在 /usr/local/mysql/my.cnf 生成了配置文件。
复制服务启动脚本
#cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
接着就可以启动mysql
#server mysqld restart
设置开机启动
#chkconfig mysqld on
给mysql设置密码
#mysql 直接就进入mysql(初始的mysql没有密码哦)
>use mysql;
>update user set password = password(111111) where user = 'root'; 给root设置密111111
>flush privileges; 刷新表使其生效
>\q 退出,重新进入mysql就需要密码
#mysql -uroot -p 111111 就可以进去了
>
到此安装mysql5.6.11就结束了。

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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.

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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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