培训网站建设课程,网站项目建设所需成本,库存管理软件免费 哪个好,做外贸网站流程目录
一、安装准备
1.1 下载
1.2 版本说明
二、安装步骤
2.1 解压缩
2.2 配置环境变量
2.3 配置文件
2.4 安装
2.5 启动/停止服务
三、使用说明
3.1 用户名密码登录
3.1 设置用户名密码
四、卸载步骤
4.1 卸载服务
五、安装问题
六、启动问题
6.1 提示【服务无…目录
一、安装准备
1.1 下载
1.2 版本说明
二、安装步骤
2.1 解压缩
2.2 配置环境变量
2.3 配置文件
2.4 安装
2.5 启动/停止服务
三、使用说明
3.1 用户名密码登录
3.1 设置用户名密码
四、卸载步骤
4.1 卸载服务
五、安装问题
六、启动问题
6.1 提示【服务无法启动】
6.1.1 问题描述
6.1.2 解决方案 一、安装准备 1.1 下载 1、MySQL官网地址MySQLhttps://www.mysql.com/ 2、点击【DOWNLOAD】菜单。 往下翻点击【MySQL Community (GPL) Downloads】连接。 选择【MySQL Community Server】选项下载MySQL。 1.2 版本说明 本文档编写时使用的是8.0.26-win64的解压缩版本。 二、安装步骤 2.1 解压缩 将压缩包解压缩到目标目录。 2.2 配置环境变量 1、【我的电脑/此电脑】右键点击【属性】选择【高级系统配置】 2、点击【环境变量】在弹出框中选择新建【系统变量】。 变量名建议为MYSQL_HOME变量值为MySQL的解压路径 3、在【系统变量】中找到Path变量并新增MYSQL的环境变量。 2.3 配置文件 将如下内容拷贝到名为my.ini的文件中并将其放入到解压根目录中。 其中较为重要的配置为 # 设置mysql客户端连接服务端时默认使用的端口 port3306 # 设置mysql的安装目录 basedirD:\mysql\ # 设置mysql数据库的数据的存放目录 datadirD:\mysql\data # MySQL Server Instance Configuration File # ---------------------------------------------------------------------- # Generated by the MySQL Server Instance Configuration Wizard # # # Installation Instructions # ---------------------------------------------------------------------- # # # CLIENT SECTION # ---------------------------------------------------------------------- # # The following options will be read by MySQL client applications. # Note that only client applications shipped by MySQL are guaranteed # to read this section. If you want your own MySQL client program to # honor these values, you need to specify it as an option during the # MySQL client library initialization. # [client] # 设置mysql客户端连接服务端时默认使用的端口 port3306 # 绑定本地IP bind-address 127.0.0.1 # 客户端默认字符集编码为utf8mb4 default-character-setutf8mb4 [mysql] # MySQL默认字符集编码为utf8mb4 default-character-setutf8mb4 # SERVER SECTION # ---------------------------------------------------------------------- # # The following options will be read by the MySQL Server. Make sure that # you have installed the server correctly (see above) so it reads this # file. # [mysqld] # The TCP/IP Port the MySQL Server will listen on # 设置默认端口为3306 port3306 # 绑定本地IP bind-address 127.0.0.1 #Path to installation directory. All paths are usually resolved relative to this. # 设置mysql的安装目录 basedirD:\mysql\ #Path to the database root # 设置mysql数据库的数据的存放目录 datadirD:\mysql\data [WinMySQLadmin] # mysqld服务路径 ServerD:\mysql\bin\mysqld.exe # The default character set that will be used when a new schema or table is # created and no character set is defined # 服务端默认字符集编码为utf8mb4 default-character-setutf8mb4 # The default storage engine that will be used when create new tables when # 创建新表时将使用的默认存储引擎 default-storage-engineINNODB # Set the SQL mode to strict sql-modeSTRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION # The maximum amount of concurrent sessions the MySQL server will # allow. One of these connections will be reserved for a user with # SUPER privileges to allow the administrator to login even if the # connection limit has been reached. # 允许最大连接数 max_connections100 # Query cache is used to cache SELECT results and later return them # without actual executing the same query once again. Having the query # cache enabled may result in significant speed improvements, if your # have a lot of identical queries and rarely changing tables. See the # Qcache_lowmem_prunes status variable to check if the current value # is high enough for your load. # Note: In case your tables change very often or if your queries are # textually different every time, the query cache may result in a # slowdown instead of a performance improvement. # 查询缓存大小 query_cache_size0 # The number of open tables for all threads. Increasing this value # increases the number of file descriptors that mysqld requires. # Therefore you have to make sure to set the amount of open files # allowed to at least 4096 in the variable open-files-limit in # section [mysqld_safe] # 表缓存大小 table_cache256 # Maximum size for internal (in-memory) temporary tables. If a table # grows larger than this value, it is automatically converted to disk # based table This limitation is for a single table. There can be many # of them. # 临时表大小 tmp_table_size26M # How many threads we should keep in a cache for reuse. When a client # disconnects, the clients threads are put in the cache if there arent # more than thread_cache_size threads from before. This greatly reduces # the amount of thread creations needed if you have a lot of new # connections. (Normally this doesnt give a notable performance # improvement if you have a good thread implementation.) # 线程数 thread_cache_size8 #*** MyISAM Specific options # The maximum size of the temporary file MySQL is allowed to use while # recreating the index (during REPAIR, ALTER TABLE or LOAD DATA INFILE. # If the file-size would be bigger than this, the index will be created # through the key cache (which is slower). myisam_max_sort_file_size100G # If the temporary file used for fast index creation would be bigger # than using the key cache by the amount specified here, then prefer the # key cache method. This is mainly used to force long character keys in # large tables to use the slower key cache method to create the index. myisam_sort_buffer_size52M # Size of the Key Buffer, used to cache index blocks for MyISAM tables. # Do not set it larger than 30% of your available memory, as some memory # is also required by the OS to cache rows. Even if youre not using # MyISAM tables, you should still set it to 8-64M as it will also be # used for internal temporary disk tables. key_buffer_size40M # Size of the buffer used for doing full table scans of MyISAM tables. # Allocated per thread, if a full scan is needed. read_buffer_size64K read_rnd_buffer_size256K # This buffer is allocated when MySQL needs to rebuild the index in # REPAIR, OPTIMZE, ALTER table statements as well as in LOAD DATA INFILE # into an empty table. It is allocated per thread so be careful with # large settings. sort_buffer_size256K #*** INNODB Specific options *** # INNODB的数据存放目录 innodb_data_home_dirD:\mysql\data\INNODB\ # Use this option if you have a MySQL server with InnoDB support enabled # but you do not plan to use it. This will save memory and disk space # and speed up some things. #skip-innodb # Additional memory pool that is used by InnoDB to store metadata # information. If InnoDB requires more memory for this purpose it will # start to allocate it from the OS. As this is fast enough on most # recent operating systems, you normally do not need to change this # value. SHOW INNODB STATUS will display the current amount used. innodb_additional_mem_pool_size2M # If set to 1, InnoDB will flush (fsync) the transaction logs to the # disk at each commit, which offers full ACID behavior. If you are # willing to compromise this safety, and you are running small # transactions, you may set this to 0 or 2 to reduce disk I/O to the # logs. Value 0 means that the log is only written to the log file and # the log file flushed to disk approximately once per second. Value 2 # means the log is written to the log file at each commit, but the log # file is only flushed to disk approximately once per second. innodb_flush_log_at_trx_commit1 # The size of the buffer InnoDB uses for buffering log data. As soon as # it is full, InnoDB will have to flush it to disk. As it is flushed # once per second anyway, it does not make sense to have it very large # (even with long transactions). innodb_log_buffer_size1M # InnoDB, unlike MyISAM, uses a buffer pool to cache both indexes and # row data. The bigger you set this the less disk I/O is needed to # access data in tables. On a dedicated database server you may set this # parameter up to 80% of the machine physical memory size. Do not set it # too large, though, because competition of the physical memory may # cause paging in the operating system. Note that on 32bit systems you # might be limited to 2-3.5G of user level memory per process, so do not # set it too high. innodb_buffer_pool_size77M # Size of each log file in a log group. You should set the combined size # of log files to about 25%-100% of your buffer pool size to avoid # unneeded buffer pool flush activity on log file overwrite. However, # note that a larger logfile size will increase the time needed for the # recovery process. innodb_log_file_size39M # Number of threads allowed inside the InnoDB kernel. The optimal value # depends highly on the application, hardware as well as the OS # scheduler properties. A too high value may lead to thread thrashing. innodb_thread_concurrency8 2.4 安装 1、使用管理员权限运行CMD此处省略使用管理员运行CMD的方法。 2、使用盘符 : 的形式切换到目标盘符。 3、使用CD切换到目标路径下。目标路径为解压缩目录\bin。 4、运行mysqld install mysql --defaults-filed:\mysql\my.ini命令。 2.5 启动/停止服务 运行net start mysql命令服务启动成功。 运行net stop mysql命令服务停止成功。 三、使用说明 3.1 用户名密码登录 服务初始化好后会默认配置用户名和密码 A temporary password is generated for rootlocalhost: ****** 输入mysql命令进行登录-h代表IP地址-u代表用户名-p代表密码 3.1 设置用户名密码 登录后执行命令ALTER USER rootlocalhost IDENTIFIED BY 新密码;修改密码完成 四、卸载步骤 4.1 卸载服务 执行mysqld remove命令卸载服务。 五、安装问题 暂无 六、启动问题 6.1 提示【服务无法启动】 6.1.1 问题描述 如图所示提示服务无法启动。 6.1.2 解决方案 根据2.3的配置datadirD:\mysql\data 可知在解压缩目录下的data目录中存放有数据库相关文件。 情况一 如果是手动创建了data目录则进入目录后可以看到后缀名为.err的文件打开文件可以看到启动报错信息。 报错说明初始化data目录失败。因此需要删除data目录由mysql自己初始化data目录此时重新尝试即可。 情况二 如果使用mysqld install命令安装时未初始化data目录则说明安装“失败”了启动时一定会报错。 此时需要使用mysqld --initialize --console命令初始化MySQL。 初始化后再执行mysqld install mysql --defaults-filed:\mysql\my.ini安装命令。 此时服务启动成功可以正常使用。
