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這篇文章將為大家詳細講解有關mysql community server 8.0.12如何安裝配置,小編覺得挺實用的,因此分享給大家做個參考,希望大家閱讀完這篇文章后可以有所收獲。
下載
本例為:MySQL Community Server 8.0.12。
解壓
解壓至安裝目錄,比如 D 盤根目錄下。
本例為:D:\mysql-8.0.12-winx64。
創建 my.ini
my.ini 是 MySQL 安裝的配置文件:
[mysqld] # 安裝目錄 basedir=D:\\mysql-8.0.12-winx64 # 數據存放目錄 datadir=D:\\mysqlData\\data
my.ini放置在 MySQL 安裝目錄的根目錄下。需要注意的是,要先創建D:\mysqlData目錄。data目錄是由 MySQL 來創建。
初始化安裝
執行:
mysqld --defaults-file=D:\mysql-8.0.12-winx64\my.ini --initialize --console
控制臺輸出如下,說明安裝成功:
>mysqld --defaults-file=D:\mysql-8.0.12-winx64\my.ini --initialize --console 2018-08-20T16:14:45.287448Z 0 [System] [MY-013169] [Server] D:\mysql-8.0.12-winx64\bin\mysqld.exe (mysqld 8.0.12) initializing of server in progress as process 5012 2018-08-20T16:14:45.289628Z 0 [ERROR] [MY-010457] [Server] --initialize specified but the data directory has files in it. Aborting. 2018-08-20T16:14:45.299329Z 0 [ERROR] [MY-010119] [Server] Aborting 2018-08-20T16:14:45.301316Z 0 [System] [MY-010910] [Server] D:\mysql-8.0.12-winx64\bin\mysqld.exe: Shutdown complete (mysqld 8.0.12) MySQL Community Server - GPL. D:\mysql-8.0.12-winx64\bin>mysqld --defaults-file=D:\mysql-8.0.12-winx64\my.ini --initialize --console 2018-08-20T16:15:25.729771Z 0 [System] [MY-013169] [Server] D:\mysql-8.0.12-winx64\bin\mysqld.exe (mysqld 8.0.12) initializing of server in progress as process 18148 2018-08-20T16:15:43.569562Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: L-hk!rBuk9-. 2018-08-20T16:15:55.811470Z 0 [System] [MY-013170] [Server] D:\mysql-8.0.12-winx64\bin\mysqld.exe (mysqld 8.0.12) initializing of server has completed
其中,“L-hk!rBuk9-.”就是 root 用戶的初始化密碼。稍后可以做更改。
啟動、關閉 MySQL server
執行mysqld就能啟動 MySQL server,或者執行 mysqld –console可以看到完整的啟動信息:
>mysqld --console 2018-08-20T16:18:23.698153Z 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. 2018-08-20T16:18:23.698248Z 0 [System] [MY-010116] [Server] D:\mysql-8.0.12-winx64\bin\mysqld.exe (mysqld 8.0.12) starting as process 16304 2018-08-20T16:18:27.624422Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed. 2018-08-20T16:18:27.793310Z 0 [System] [MY-010931] [Server] D:\mysql-8.0.12-winx64\bin\mysqld.exe: ready for connections. Version: '8.0.12' socket: '' port: 3306 MySQL Community Server - GPL.
關閉,可以執行 mysqladmin -u root shutdown。
使用 MySQL 客戶端
使用 mysql 來登錄,賬號為 root,密碼為“L-hk!rBuk9-.”:
>mysql -u root -p Enter password: ************ Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 11 Server version: 8.0.12 Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
執行下面的語句來改密碼。其中“123456”即為新密碼。
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '123456'; Query OK, 0 rows affected (0.13 sec)
MySQL 常用指令
顯示已有的數據庫:
mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | sys | +--------------------+ 4 rows in set (0.08 sec)
創建新的數據庫:
mysql> CREATE DATABASE lite; Query OK, 1 row affected (0.19 sec)
使用數據庫:
mysql> USE lite; Database changed
建表:
建表執行:
mysql> CREATE TABLE t_user (user_id BIGINT NOT NULL, username VARCHAR(20)); Query OK, 0 rows affected (0.82 sec)
查看表:
查看數據庫中的所有表:
mysql> SHOW TABLES; +----------------+ | Tables_in_lite | +----------------+ | t_user | +----------------+ 1 row in set (0.00 sec)
查看表的詳情:
mysql> DESCRIBE t_user; +----------+-------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +----------+-------------+------+-----+---------+-------+ | user_id | bigint(20) | NO | | NULL | | | username | varchar(20) | YES | | NULL | | +----------+-------------+------+-----+---------+-------+ 2 rows in set (0.00 sec)
插入數據:
mysql> INSERT INTO t_user(user_id, username) VALUES(1, '老衛'); Query OK, 1 row affected (0.08 sec)
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