MySQL8.0 Windows zip包下載地址:https://cdn.mysql.com//Downloads/MySQL-8.0/mysql-8.0.11-winx64.ziphtml
環境:Windows 10mysql
好比個人安裝目錄是:D:\Program\MySQLlinux
在Windows系統中,配置文件默認是安裝目錄下的 my.ini 文件,部分配置須要在初始安裝時配置,大部分也能夠在安裝完成後進行更改。固然,極端狀況下,全部的都是能夠更改的。sql
在安裝根目錄下添加 my.ini,好比我這裏是:D:\Program\MySQL\my.ini,寫入基本配置:shell
[mysqld] # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. # innodb_buffer_pool_size = 128M # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin # These are commonly set, remove the # and set as required. basedir = D:\Program\MySQL datadir = D:\DBs\MySQL port = 3306 # server_id = ..... # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed, experiment to find the optimal values. # join_buffer_size = 128M # sort_buffer_size = 2M # read_rnd_buffer_size = 2M sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES character-set-server = utf8mb4 performance_schema_max_table_instances = 600 table_definition_cache = 400 table_open_cache = 256 [mysql] default-character-set = utf8mb4 [client] default-character-set = utf8mb4
注意,裏面的 basedir 是我本地的安裝目錄,datadir 是我數據庫數據文件要存放的位置,各項配置須要根據本身的環境進行配置。數據庫
查看全部的配置項,可參考:https://dev.mysql.com/doc/refman/8.0/en/mysqld-option-tables.htmlwindows
在MySQL安裝目錄的 bin 目錄下執行命令:安全
mysqld --initialize --console
執行完成後,會打印 root 用戶的初始默認密碼,好比:工具
2018-04-20T02:35:01.507037Z 0 [Warning] [MY-010915] [Server] 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release. 2018-04-20T02:35:01.507640Z 0 [System] [MY-013169] [Server] D:\Program\MySQL8\bin\mysqld.exe (mysqld 8.0.11) initializing of server in progress as process 11064 2018-04-20T02:35:01.508173Z 0 [ERROR] [MY-010340] [Server] Error message file 'D:\Program\MySQL\share\english\errmsg.sys' had only 1090 error messages, but it should contain at least 4512 error messages. Check that the above file is the right version for this program! 2018-04-20T02:35:05.464644Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: APWCY5ws&hjQ 2018-04-20T02:35:07.017280Z 0 [System] [MY-013170] [Server] D:\Program\MySQL8\bin\mysqld.exe (mysqld 8.0.11) initializing of server has completed
其中,第4行的「APWCY5ws&hjQ」就是初始密碼,在沒有更改密碼前,須要記住這個密碼,後續登陸須要用到。測試
要是你手賤,關快了,或者沒記住,那也沒事,刪掉初始化的 datadir 目錄,再執行一遍初始化命令,又會從新生成的。固然,也可使用安全工具,強制改密碼,用什麼方法,本身隨意。
參考:https://dev.mysql.com/doc/refman/8.0/en/data-directory-initialization-mysqld.html
在MySQL安裝目錄的 bin 目錄下執行命令:
mysqld --install [服務名]
後面的服務名能夠不寫,默認的名字爲 mysql。固然,若是你的電腦上須要安裝多個MySQL服務,就能夠用不一樣的名字區分了,好比 mysql5 和 mysql8。
安裝完成以後,就能夠經過命令net start mysql啓動MySQL的服務了。
參考:https://dev.mysql.com/doc/refman/8.0/en/windows-start-service.html
在MySQL安裝目錄的 bin 目錄下執行命令:
mysql -uroot -p
這時候會提示輸入密碼,記住了第3步的密碼,填入便可登陸成功,進入MySQL命令模式。
在MySQL8.0.4之前,執行
SET PASSWORD=PASSWORD('[修改的密碼]');
就能夠更改密碼,可是MySQL8.0.4開始,這樣默認是不行的。由於以前,MySQL的密碼認證插件是「mysql_native_password」,而如今使用的是「caching_sha2_password」。
由於當前有不少數據庫工具和連接包都不支持「caching_sha2_password」,爲了方便,我暫時仍是改回了「mysql_native_password」認證插件。
在MySQL中執行命令:
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';
修改密碼驗證插件,同時修改密碼。
若是想默認使用「mysql_native_password」插件認證,能夠在配置文件中配置default_authentication_plugin
項。
[mysqld] default_authentication_plugin=mysql_native_password
不用測了,官方說MySQL8比5快兩倍。
wget https://cdn.mysql.com//Downloads/MySQL-8.0/mysql-8.0.11-linux-glibc2.12-x86_64.tar.gz shell> tar zxvf mysql-8.0.11-linux-glibc2.12-x86_64.tar.gz -C /usr/local/ shell> groupadd mysql shell> useradd -r -g mysql -s /bin/false mysql shell> cd /usr/local shell> ln -s mysql-8.0.11-linux-glibc2.12-x86_64 mysql shell> cd mysql shell> mkdir mysql-files shell> chown mysql:mysql mysql-files shell> chmod 750 mysql-files shell> bin/mysqld --initialize --user=mysql shell> bin/mysql_ssl_rsa_setup shell> bin/mysqld_safe --user=mysql & # Next command is optional shell> cp support-files/mysql.server /etc/init.d/mysql.server
參考:https://dev.mysql.com/doc/refman/8.0/en/binary-installation.html
在windos 的cmd下安裝mysql
在mysql的bin目錄下面執行: mysqld --install
報錯:
信息以下:
Install/Remove of the Service Denied
解決辦法:
打開cmd.exe程序的時候選擇「用管理員身份打開」。