mac下安裝mysql

1、下載server和workbench

2、安裝server

2018-04-22T09:29:10.385999Z 1 [Note] A temporary password is generated for root@localhost: 8Jj)>opkXLuN
If you lose this password, please consult the section How to Reset the Root Password in the MySQL reference manual.
提示的root密碼一定要記下來

• 在設置的最下面可以看到mysql選項，點擊進入並啓動
• 把下面兩條指令複製到終端當中運行，給兩個目錄地址給一個名字，
  目的是下一次執行可以直接執行mysql或者mysqladmin，不需要再去來回切換目錄

zhaojunyandeMBP:~ zhaojunyan$ alias mysql=/usr/local/mysql/bin/mysql
zhaojunyandeMBP:~ zhaojunyan$ alias mysqladmin=/usr/local/mysql/bin/mysqladmin
zhaojunyandeMBP:~ zhaojunyan$ mysql

• 終極方案
  上面是個臨時的，終端重啓就失效了

zhaojunyandeMBP:~ zhaojunyan$ sudo vim ~/.bash_profile 
zhaojunyandeMBP:~ zhaojunyan$ source ~/.bash_profile 
zhaojunyandeMBP:~ zhaojunyan$ cat ~/.bash_profile 
export GOPATH=/Users/zhaojunyan/go
export GOBIN=$GOPATH/bin
export MYSQLBIN=/usr/local/mysql/bin
export PATH=$PATH:$GOBIN:$MYSQLBIN

zhaojunyandeMBP:~ zhaojunyan$ mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 27
Server version: 5.7.16 MySQL Community Server (GPL)

• 修改密碼，初始密碼已經在前面記下了

zhaojunyandeMBP:~ zhaojunyan$ **mysql -uroot -p**
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 16
Server version: 5.7.16

Copyright (c) 2000, 2016, 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.

mysql> set password for 'root'@'localhost' = password('root');
Query OK, 0 rows affected, 1 warning (0.01 sec)

• 添加用戶
  命令:CREATE USER ‘username’@’host’ IDENTIFIED BY ‘password’;

說明:username - 你將創建的用戶名, host - 指定該用戶在哪個主機上可以登陸,如果是本地用戶可用localhost, 如果想讓該用戶可以從任意遠程主機登陸,可以使用通配符%. password - 該用戶的登陸密碼,密碼可以爲空,如果爲空則該用戶可以不需要密碼登陸服務器.

例子: CREATE USER ‘test’@’localhost’ IDENTIFIED BY ‘123456’;
CREATE USER ‘test’@’%’ IDENTIFIED BY ‘123456’;
CREATE USER ‘test’@’%’ IDENTIFIED BY ”;
CREATE USER ‘test’@’%’;

mysql> create user 'test'@'localhost' identified by '123456';
Query OK, 0 rows affected (0.01 sec)

• 查看所有用戶，其實也是存在一張表裏

mysql> select User,Host FROM mysql.user;
+-----------+-----------+
| User      | Host      |
+-----------+-----------+
| mysql.sys | localhost |
| root      | localhost |
| test      | localhost |
+-----------+-----------+
3 rows in set (0.00 sec)

mysql> quit

• 設置與更改用戶密碼

命令:
SET PASSWORD FOR ‘username’@’host’ = PASSWORD(‘newpassword’)
如果是當前登陸用戶用SET PASSWORD = PASSWORD(“newpassword”);

例子: SET PASSWORD FOR ‘test’@’%’ = PASSWORD(“123456”);

• 添加了用戶名，可能沒有操作表的權限，需要添加權限
  命令:GRANT privileges ON databasename.tablename TO ‘username’@’host’

說明: privileges - 用戶的操作權限,如SELECT , INSERT , UPDATE 等
如果要授予所的權限則使用ALL.
databasename - 數據庫名,tablename-表名
如果要授予該用戶對所有數據庫和表的相應操作權限則可用*表示, 如*.*

例子: GRANT SELECT, INSERT ON test.user TO ‘test’@’%’;
GRANT ALL ON *.* TO ‘test’@’%’;

注意:用以上命令授權的用戶不能給其它用戶授權
如果想讓該用戶可以授權, 用以下命令:
GRANT privileges ON databasename.tablename TO ‘username’@’host’ WITH GRANT OPTION;

• 撤銷授權
  命令:
  REVOKE privilege ON databasename.tablename FROM ‘username’@’host’;

說明: privilege, databasename, tablename - 同授權部分.

例子: REVOKE SELECT ON *.* FROM ‘test’@’%’;

3、安裝workbench

安裝後可以通過workbench創建數據庫和表，也可以通過命令創建

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
4 rows in set (0.00 sec)

mysql> create database testdb;
Query OK, 1 row affected (0.00 sec)

mysql> create table person(name varchar(20), age tinyint(4));
ERROR 1046 (3D000): No database selected
mysql> use testdb;
Database changed
mysql> create table person(name varchar(20), age tinyint(4));
Query OK, 0 rows affected (0.02 sec)

mysql>